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Leo-III---1.8.0.UNS-Ref.s

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%------------------------------------------------------------------------------
% File     : Leo-III---1.8.0
% Problem  : ALG007-1 : TPTP v9.3.1. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39

% Computer : n016.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Sun Sep 27 06:45:53 AM UTC 2026

% Result   : Unsatisfiable 73.13s 17.73s
% Output   : Refutation 61.12s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   38
%            Number of leaves      :    4
% Syntax   : Number of formulae    :  340 ( 172 unt;   0 typ;   0 def)
%            Number of atoms       :  554 ( 553 equ;   0 cnn)
%            Maximal formula atoms :    5 (   1 avg)
%            Number of connectives : 3311 ( 507   ~; 214   |;   0   &;2590   @)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   5 avg)
%            Number of types       :    1 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    6 (   4 usr;   4 con; 0-2 aty)
%            Number of variables   :  740 (   0   ^; 740   !;   0   ?; 740   :)

% Comments : 
%------------------------------------------------------------------------------
thf(difference_decl,type,
    difference: $i > $i > $i ).

thf(a_decl,type,
    a: $i ).

thf(b_decl,type,
    b: $i ).

thf(c_decl,type,
    c: $i ).

thf(2,axiom,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ difference ) @ ( A @ difference ) )
      = A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',set_difference_1) ).

thf(8,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ difference ) @ ( A @ difference ) )
      = A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

thf(9,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ difference ) @ ( A @ difference ) )
      = A ),
    inference(lifteq,[status(thm)],[8]) ).

thf(18,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( C @ ( D @ difference ) ) )
      | ( ( A @ ( C @ difference ) )
        = C ) ),
    inference(paramod_ordered,[status(thm)],[9,9]) ).

thf(19,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( B @ ( A @ difference ) @ difference ) )
      = ( B @ ( A @ difference ) ) ),
    inference(pattern_uni,[status(thm)],[18:[bind(A,$thf( F )),bind(B,$thf( E )),bind(C,$thf( F @ ( E @ difference ) )),bind(D,$thf( F ))]]) ).

thf(28,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( B @ ( A @ difference ) @ difference ) )
      = ( B @ ( A @ difference ) ) ),
    inference(simp,[status(thm)],[19]) ).

thf(3,axiom,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ difference ) @ ( A @ difference ) )
      = ( A @ ( B @ difference ) @ ( B @ difference ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',set_difference_2) ).

thf(10,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ difference ) @ ( A @ difference ) )
      = ( A @ ( B @ difference ) @ ( B @ difference ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).

thf(11,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ difference ) @ ( A @ difference ) )
      = ( A @ ( B @ difference ) @ ( B @ difference ) ) ),
    inference(lifteq,[status(thm)],[10]) ).

thf(129,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( D @ ( C @ difference ) ) )
      | ( ( B @ ( A @ difference ) @ ( C @ difference ) )
        = ( C @ ( D @ difference ) @ ( D @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[28,11]) ).

thf(130,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
      = ( B @ ( A @ difference ) @ ( B @ difference ) @ ( B @ difference ) ) ),
    inference(pattern_uni,[status(thm)],[129:[bind(A,$thf( E )),bind(B,$thf( F )),bind(C,$thf( F @ ( E @ difference ) )),bind(D,$thf( F ))]]) ).

thf(206,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
      = ( B @ ( A @ difference ) @ ( B @ difference ) @ ( B @ difference ) ) ),
    inference(simp,[status(thm)],[130]) ).

thf(12197,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
      = ( B @ ( B @ difference ) ) ),
    inference(rewrite,[status(thm)],[206,9]) ).

thf(4,axiom,
    ! [C: $i,B: $i,A: $i] :
      ( ( C @ ( B @ ( A @ difference ) @ difference ) )
      = ( B @ ( C @ ( A @ difference ) @ difference ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',set_difference_3_simplified) ).

thf(12,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C @ ( B @ ( A @ difference ) @ difference ) )
      = ( B @ ( C @ ( A @ difference ) @ difference ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).

thf(13,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C @ ( B @ ( A @ difference ) @ difference ) )
      = ( B @ ( C @ ( A @ difference ) @ difference ) ) ),
    inference(lifteq,[status(thm)],[12]) ).

thf(370,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( D @ ( E @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) @ ( D @ difference ) )
        = D ) ),
    inference(paramod_ordered,[status(thm)],[13,9]) ).

thf(371,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C @ ( A @ ( B @ difference ) @ difference ) @ ( A @ difference ) )
      = A ),
    inference(pattern_uni,[status(thm)],[370:[bind(A,$thf( F )),bind(B,$thf( G )),bind(C,$thf( C )),bind(D,$thf( C )),bind(E,$thf( G @ ( F @ difference ) ))]]) ).

thf(532,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C @ ( A @ ( B @ difference ) @ difference ) @ ( A @ difference ) )
      = A ),
    inference(simp,[status(thm)],[371]) ).

thf(674,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != ( E @ ( C @ ( D @ difference ) @ difference ) ) )
      | ( ( A @ ( B @ difference ) @ ( B @ difference ) @ ( C @ difference ) )
        = C ) ),
    inference(paramod_ordered,[status(thm)],[11,532]) ).

thf(675,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C @ ( B @ difference ) @ ( A @ difference ) @ ( A @ difference ) @ ( C @ difference ) )
      = C ),
    inference(pattern_uni,[status(thm)],[674:[bind(A,$thf( K @ ( J @ difference ) )),bind(B,$thf( I )),bind(C,$thf( K )),bind(D,$thf( J )),bind(E,$thf( I @ ( K @ ( J @ difference ) @ difference ) ))]]) ).

thf(740,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C @ ( B @ difference ) @ ( A @ difference ) @ ( A @ difference ) @ ( C @ difference ) )
      = C ),
    inference(simp,[status(thm)],[675]) ).

thf(4396,plain,
    ! [F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( A @ ( B @ difference ) @ difference ) @ ( A @ difference ) )
       != ( F @ ( E @ difference ) @ ( D @ difference ) ) )
      | ( ( A @ ( D @ difference ) @ ( F @ difference ) )
        = F ) ),
    inference(paramod_ordered,[status(thm)],[532,740]) ).

thf(4397,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( B @ difference ) @ ( A @ difference ) )
      = A ),
    inference(pattern_uni,[status(thm)],[4396:[bind(A,$thf( H )),bind(B,$thf( G )),bind(C,$thf( C )),bind(D,$thf( H )),bind(E,$thf( H @ ( G @ difference ) )),bind(F,$thf( C ))]]) ).

thf(4642,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( B @ difference ) @ ( A @ difference ) )
      = A ),
    inference(simp,[status(thm)],[4397]) ).

thf(1,negated_conjecture,
    ( ( c @ ( b @ ( a @ difference ) @ difference ) )
   != ( c @ ( b @ difference ) @ ( c @ ( a @ difference ) @ difference ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_set_difference_3) ).

thf(5,plain,
    ( ( c @ ( b @ ( a @ difference ) @ difference ) )
   != ( c @ ( b @ difference ) @ ( c @ ( a @ difference ) @ difference ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[1]) ).

thf(6,plain,
    ( ( c @ ( b @ ( a @ difference ) @ difference ) )
   != ( c @ ( b @ difference ) @ ( c @ ( a @ difference ) @ difference ) ) ),
    inference(polarity_switch,[status(thm)],[5]) ).

thf(7,plain,
    ( ( c @ ( b @ difference ) @ ( c @ ( a @ difference ) @ difference ) )
   != ( c @ ( b @ ( a @ difference ) @ difference ) ) ),
    inference(lifteq,[status(thm)],[6]) ).

thf(16,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( ( A @ ( c @ ( a @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[9,7]) ).

thf(24,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) )
       != c )
      | ( A != b )
      | ( ( A @ ( c @ ( a @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(simp,[status(thm)],[16]) ).

thf(33,plain,
    ! [A: $i] :
      ( ( ( b @ ( A @ difference ) )
       != c )
      | ( ( b @ ( c @ ( a @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(simp,[status(thm)],[24]) ).

thf(1639,plain,
    ! [A: $i] :
      ( ( b @ ( A @ difference ) )
     != c ),
    inference(simplifyReflect,[status(thm)],[33,13]) ).

thf(1642,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( b @ ( C @ difference ) ) )
      | ( A != c ) ),
    inference(paramod_ordered,[status(thm)],[9,1639]) ).

thf(1659,plain,
    ! [B: $i,A: $i] :
      ( ( c @ ( A @ difference ) @ ( c @ difference ) )
     != ( b @ ( B @ difference ) ) ),
    inference(simp,[status(thm)],[1642]) ).

thf(1671,plain,
    ! [B: $i,A: $i] :
      ( ( c @ ( A @ difference ) @ ( c @ difference ) )
     != ( b @ ( B @ difference ) ) ),
    inference(simp,[status(thm)],[1659]) ).

thf(3033,plain,
    ! [A: $i] :
      ( ( b @ ( A @ difference ) )
     != c ),
    inference(rewrite,[status(thm)],[1671,9]) ).

thf(6759,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( B @ difference ) @ ( A @ difference ) )
       != ( b @ ( C @ difference ) ) )
      | ( A != c ) ),
    inference(paramod_ordered,[status(thm)],[4642,3033]) ).

thf(6949,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( A @ difference ) )
       != b )
      | ( c != B ) ),
    inference(simp,[status(thm)],[6759]) ).

thf(7160,plain,
    ! [A: $i] :
      ( ( A @ ( A @ difference ) )
     != b ),
    inference(simp,[status(thm)],[6949]) ).

thf(7322,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( A @ ( B @ difference ) @ difference ) @ ( A @ difference ) )
       != ( D @ ( D @ difference ) ) )
      | ( A != b ) ),
    inference(paramod_ordered,[status(thm)],[532,7160]) ).

thf(7335,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( b @ ( A @ difference ) @ difference ) )
       != C )
      | ( b != C ) ),
    inference(simp,[status(thm)],[7322]) ).

thf(7347,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( b @ ( A @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[7335]) ).

thf(12361,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
       != ( D @ ( b @ ( C @ difference ) @ difference ) ) )
      | ( ( B @ ( B @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[12197,7347]) ).

thf(12362,plain,
    ( ( b @ ( b @ difference ) )
   != b ),
    inference(pattern_uni,[status(thm)],[12361:[bind(A,$thf( E )),bind(B,$thf( b )),bind(C,$thf( E )),bind(D,$thf( b @ ( E @ difference ) ))]]) ).

thf(1643,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( b @ ( D @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[13,1639]) ).

thf(1644,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( b @ ( A @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[1643:[bind(A,$thf( E )),bind(B,$thf( F )),bind(C,$thf( b )),bind(D,$thf( F @ ( E @ difference ) ))]]) ).

thf(1662,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( b @ ( A @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[1644]) ).

thf(1721,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != ( D @ ( b @ ( C @ difference ) @ difference ) ) )
      | ( ( A @ ( B @ difference ) @ ( B @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[11,1662]) ).

thf(1722,plain,
    ! [B: $i,A: $i] :
      ( ( b @ ( B @ difference ) @ ( A @ difference ) @ ( A @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[1721:[bind(A,$thf( b @ ( I @ difference ) )),bind(B,$thf( H )),bind(C,$thf( I )),bind(D,$thf( H @ ( b @ ( I @ difference ) @ difference ) ))]]) ).

thf(1756,plain,
    ! [B: $i,A: $i] :
      ( ( b @ ( B @ difference ) @ ( A @ difference ) @ ( A @ difference ) )
     != c ),
    inference(simp,[status(thm)],[1722]) ).

thf(4152,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != ( b @ ( D @ difference ) @ ( C @ difference ) ) )
      | ( ( A @ ( B @ difference ) @ ( B @ difference ) @ ( C @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[11,1756]) ).

thf(4153,plain,
    ! [A: $i] :
      ( ( A @ ( b @ difference ) @ ( b @ difference ) @ ( A @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[4152:[bind(A,$thf( A )),bind(B,$thf( b )),bind(C,$thf( A )),bind(D,$thf( A ))]]) ).

thf(6773,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( B @ difference ) @ ( A @ difference ) )
       != ( C @ ( b @ difference ) @ ( b @ difference ) @ ( C @ difference ) ) )
      | ( A != c ) ),
    inference(paramod_ordered,[status(thm)],[4642,4153]) ).

thf(6990,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( A @ difference ) )
       != ( B @ ( b @ difference ) @ ( b @ difference ) ) )
      | ( c != B ) ),
    inference(simp,[status(thm)],[6773]) ).

thf(7201,plain,
    ! [A: $i] :
      ( ( A @ ( A @ difference ) )
     != ( c @ ( b @ difference ) @ ( b @ difference ) ) ),
    inference(simp,[status(thm)],[6990]) ).

thf(10298,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) @ ( b @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != ( D @ ( D @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[13,7201]) ).

thf(10371,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( C
       != ( c @ ( b @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != b )
      | ( B != D )
      | ( ( C @ ( A @ difference ) )
       != D ) ),
    inference(simp,[status(thm)],[10298]) ).

thf(10407,plain,
    ! [A: $i] :
      ( ( c @ ( b @ difference ) @ ( A @ difference ) @ ( A @ difference ) )
     != b ),
    inference(simp,[status(thm)],[10371]) ).

thf(1650,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( A @ ( B @ difference ) @ difference ) @ ( A @ difference ) )
       != ( b @ ( D @ difference ) ) )
      | ( A != c ) ),
    inference(paramod_ordered,[status(thm)],[532,1639]) ).

thf(1653,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( c @ ( A @ difference ) @ difference ) )
       != b )
      | ( c != C ) ),
    inference(simp,[status(thm)],[1650]) ).

thf(1665,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( c @ ( A @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[1653]) ).

thf(1766,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != ( E @ ( c @ ( D @ difference ) @ difference ) ) )
      | ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[13,1665]) ).

thf(1767,plain,
    ! [B: $i,A: $i] :
      ( ( c @ ( B @ ( A @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[1766:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( c )),bind(D,$thf( A )),bind(E,$thf( B ))]]) ).

thf(14,plain,
    ( ( ( c @ ( b @ difference ) )
     != c )
    | ( ( c @ ( a @ difference ) )
     != ( b @ ( a @ difference ) ) ) ),
    inference(simp,[status(thm)],[7]) ).

thf(74,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != c )
      | ( ( c @ ( a @ difference ) )
       != ( b @ ( a @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[28,14]) ).

thf(75,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != c )
      | ( c != b )
      | ( a != a ) ),
    inference(simp,[status(thm)],[74]) ).

thf(88,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != c )
      | ( c != b ) ),
    inference(simp,[status(thm)],[75]) ).

thf(377,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( D @ ( C @ difference ) ) )
      | ( ( E @ ( A @ difference ) )
        = ( D @ ( E @ ( C @ difference ) @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[9,13]) ).

thf(378,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C @ ( B @ difference ) @ ( A @ ( C @ difference ) @ difference ) )
      = ( A @ ( C @ difference ) ) ),
    inference(pattern_uni,[status(thm)],[377:[bind(A,$thf( G )),bind(B,$thf( F )),bind(C,$thf( G )),bind(D,$thf( G @ ( F @ difference ) ))]]) ).

thf(535,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( C @ ( B @ difference ) @ ( A @ ( C @ difference ) @ difference ) )
      = ( A @ ( C @ difference ) ) ),
    inference(simp,[status(thm)],[378]) ).

thf(5042,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( C @ ( b @ difference ) @ ( b @ difference ) @ ( C @ difference ) ) )
      | ( A != c ) ),
    inference(paramod_ordered,[status(thm)],[9,4153]) ).

thf(5085,plain,
    ! [B: $i,A: $i] :
      ( ( ( c @ ( A @ difference ) )
       != ( B @ ( b @ difference ) @ ( b @ difference ) ) )
      | ( c != B ) ),
    inference(simp,[status(thm)],[5042]) ).

thf(5111,plain,
    ! [A: $i] :
      ( ( c @ ( A @ difference ) )
     != ( c @ ( b @ difference ) @ ( b @ difference ) ) ),
    inference(simp,[status(thm)],[5085]) ).

thf(5915,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( c @ ( C @ difference ) ) )
      | ( A
       != ( c @ ( b @ difference ) @ ( b @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[9,5111]) ).

thf(5988,plain,
    ! [B: $i,A: $i] :
      ( ( ( c @ ( b @ difference ) @ ( b @ difference ) @ ( A @ difference ) )
       != c )
      | ( ( c @ ( b @ difference ) @ ( b @ difference ) )
       != B ) ),
    inference(simp,[status(thm)],[5915]) ).

thf(6057,plain,
    ! [A: $i] :
      ( ( c @ ( b @ difference ) @ ( b @ difference ) @ ( A @ difference ) )
     != c ),
    inference(simp,[status(thm)],[5988]) ).

thf(6564,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ difference ) @ ( A @ ( C @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) @ ( b @ difference ) @ ( D @ difference ) ) )
      | ( ( A @ ( C @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[535,6057]) ).

thf(6565,plain,
    ! [A: $i] :
      ( ( A @ ( c @ ( b @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[6564:[bind(A,$thf( F )),bind(B,$thf( b )),bind(C,$thf( c @ ( b @ difference ) )),bind(D,$thf( F @ ( c @ ( b @ difference ) @ difference ) ))]]) ).

thf(6613,plain,
    ! [A: $i] :
      ( ( A @ ( c @ ( b @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[6565]) ).

thf(6646,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != ( C @ ( c @ ( b @ difference ) @ difference ) ) )
      | ( ( A @ ( B @ difference ) @ ( B @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[11,6613]) ).

thf(6647,plain,
    ! [A: $i] :
      ( ( c @ ( b @ difference ) @ ( A @ difference ) @ ( A @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[6646:[bind(A,$thf( c @ ( b @ difference ) )),bind(B,$thf( G )),bind(C,$thf( G @ ( c @ ( b @ difference ) @ difference ) ))]]) ).

thf(6679,plain,
    ! [A: $i] :
      ( ( c @ ( b @ difference ) @ ( A @ difference ) @ ( A @ difference ) )
     != c ),
    inference(simp,[status(thm)],[6647]) ).

thf(8043,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ difference ) @ ( C @ difference ) @ ( C @ difference ) ) )
      | ( ( A @ ( B @ difference ) @ ( B @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[11,6679]) ).

thf(8044,plain,
    ! [A: $i] :
      ( ( A @ ( c @ ( b @ difference ) @ difference ) @ ( c @ ( b @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[8043:[bind(A,$thf( A )),bind(B,$thf( c @ ( b @ difference ) )),bind(C,$thf( A ))]]) ).

thf(649,plain,
    ! [F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( D @ ( E @ difference ) ) )
      | ( ( F @ ( B @ ( C @ ( A @ difference ) @ difference ) @ difference ) @ ( D @ difference ) )
        = D ) ),
    inference(paramod_ordered,[status(thm)],[13,532]) ).

thf(650,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( B @ ( D @ ( A @ ( C @ difference ) @ difference ) @ difference ) @ ( A @ difference ) )
      = A ),
    inference(pattern_uni,[status(thm)],[649:[bind(A,$thf( G )),bind(B,$thf( H )),bind(C,$thf( C )),bind(D,$thf( C )),bind(E,$thf( H @ ( G @ difference ) ))]]) ).

thf(735,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( B @ ( D @ ( A @ ( C @ difference ) @ difference ) @ difference ) @ ( A @ difference ) )
      = A ),
    inference(simp,[status(thm)],[650]) ).

thf(4161,plain,
    ! [F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( D @ ( A @ ( C @ difference ) @ difference ) @ difference ) @ ( A @ difference ) )
       != ( b @ ( F @ difference ) @ ( E @ difference ) ) )
      | ( ( A @ ( E @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[735,1756]) ).

thf(4162,plain,
    ! [A: $i] :
      ( ( A @ ( A @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[4161:[bind(A,$thf( J )),bind(B,$thf( b )),bind(C,$thf( I )),bind(D,$thf( H )),bind(E,$thf( J )),bind(F,$thf( H @ ( J @ ( I @ difference ) @ difference ) ))]]) ).

thf(4174,plain,
    ! [A: $i] :
      ( ( A @ ( A @ difference ) )
     != c ),
    inference(simp,[status(thm)],[4162]) ).

thf(4234,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( A @ ( B @ difference ) @ difference ) @ ( A @ difference ) )
       != ( D @ ( D @ difference ) ) )
      | ( A != c ) ),
    inference(paramod_ordered,[status(thm)],[532,4174]) ).

thf(4244,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( c @ ( A @ difference ) @ difference ) )
       != C )
      | ( c != C ) ),
    inference(simp,[status(thm)],[4234]) ).

thf(4253,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( c @ ( A @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[4244]) ).

thf(4298,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( C @ difference ) ) )
      | ( ( D @ ( B @ ( A @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[28,4253]) ).

thf(4299,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( c @ ( B @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[4298:[bind(A,$thf( E )),bind(B,$thf( c )),bind(C,$thf( c @ ( E @ difference ) )),bind(D,$thf( D ))]]) ).

thf(4339,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( c @ ( B @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[4299]) ).

thf(4310,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != ( E @ ( c @ ( D @ difference ) @ difference ) ) )
      | ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[13,4253]) ).

thf(4311,plain,
    ! [B: $i,A: $i] :
      ( ( c @ ( B @ ( A @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[4310:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( c )),bind(D,$thf( A )),bind(E,$thf( B ))]]) ).

thf(154,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( B @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( ( B @ ( A @ difference ) @ ( A @ difference ) @ ( c @ ( a @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[11,7]) ).

thf(202,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( B @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != c )
      | ( ( c @ ( a @ difference ) )
       != ( b @ ( a @ difference ) ) ) ),
    inference(simp,[status(thm)],[154]) ).

thf(6637,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( D @ ( c @ ( b @ difference ) @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[13,6613]) ).

thf(6638,plain,
    ! [A: $i] :
      ( ( c @ ( A @ ( b @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[6637:[bind(A,$thf( b )),bind(B,$thf( c )),bind(C,$thf( C )),bind(D,$thf( C ))]]) ).

thf(6677,plain,
    ! [A: $i] :
      ( ( c @ ( A @ ( b @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[6638]) ).

thf(6698,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != ( C @ ( b @ difference ) ) )
      | ( ( c @ ( A @ ( B @ difference ) @ ( B @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[11,6677]) ).

thf(6699,plain,
    ! [A: $i] :
      ( ( c @ ( b @ ( A @ difference ) @ ( A @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[6698:[bind(A,$thf( b )),bind(B,$thf( E )),bind(C,$thf( E @ ( b @ difference ) ))]]) ).

thf(6732,plain,
    ! [A: $i] :
      ( ( c @ ( b @ ( A @ difference ) @ ( A @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[6699]) ).

thf(1708,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( b @ ( C @ difference ) ) )
      | ( ( D @ ( B @ ( A @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[28,1662]) ).

thf(1709,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( b @ ( B @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[1708:[bind(A,$thf( E )),bind(B,$thf( b )),bind(C,$thf( b @ ( E @ difference ) )),bind(D,$thf( D ))]]) ).

thf(1750,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( b @ ( B @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[1709]) ).

thf(4147,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ difference ) @ ( A @ ( C @ difference ) @ difference ) )
       != ( b @ ( E @ difference ) @ ( D @ difference ) ) )
      | ( ( A @ ( C @ difference ) @ ( D @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[535,1756]) ).

thf(4148,plain,
    ! [A: $i] :
      ( ( A @ ( b @ difference ) @ ( A @ ( b @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[4147:[bind(A,$thf( G )),bind(B,$thf( B )),bind(C,$thf( b )),bind(D,$thf( G @ ( b @ difference ) )),bind(E,$thf( B ))]]) ).

thf(4195,plain,
    ! [A: $i] :
      ( ( A @ ( b @ difference ) @ ( A @ ( b @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[4148]) ).

thf(7914,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( B @ difference ) @ ( A @ difference ) )
       != ( C @ ( b @ difference ) ) )
      | ( ( C @ ( b @ difference ) @ ( A @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[4642,4195]) ).

thf(7915,plain,
    ! [A: $i] :
      ( ( A @ ( A @ difference ) @ ( b @ difference ) @ ( b @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[7914:[bind(A,$thf( b )),bind(B,$thf( E )),bind(C,$thf( E @ ( E @ difference ) ))]]) ).

thf(7949,plain,
    ! [A: $i] :
      ( ( A @ ( A @ difference ) @ ( b @ difference ) @ ( b @ difference ) )
     != c ),
    inference(simp,[status(thm)],[7915]) ).

thf(37,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( a @ difference ) ) )
      | ( ( c @ ( b @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[28,7]) ).

thf(57,plain,
    ! [B: $i,A: $i] :
      ( ( B != c )
      | ( ( B @ ( A @ difference ) )
       != a )
      | ( ( c @ ( b @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(simp,[status(thm)],[37]) ).

thf(67,plain,
    ! [A: $i] :
      ( ( ( c @ ( A @ difference ) )
       != a )
      | ( ( c @ ( b @ difference ) @ ( c @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(simp,[status(thm)],[57]) ).

thf(12413,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) @ ( c @ ( C @ difference ) @ difference ) ) )
      | ( ( c @ ( C @ difference ) )
       != a )
      | ( ( B @ ( B @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[12197,67]) ).

thf(12414,plain,
    ( ( ( c @ ( b @ difference ) )
     != a )
    | ( ( c @ ( b @ ( a @ difference ) @ difference ) )
     != ( c @ ( c @ difference ) ) ) ),
    inference(pattern_uni,[status(thm)],[12413:[bind(A,$thf( b )),bind(B,$thf( c )),bind(C,$thf( b ))]]) ).

thf(14732,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) )
      | ( ( c @ ( b @ difference ) )
       != a )
      | ( ( B @ ( A @ difference ) )
       != ( c @ ( c @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[28,12414]) ).

thf(14800,plain,
    ! [B: $i,A: $i] :
      ( ( B != c )
      | ( ( B @ ( A @ difference ) )
       != ( b @ ( a @ difference ) ) )
      | ( ( c @ ( b @ difference ) )
       != a )
      | ( B != c )
      | ( A != c ) ),
    inference(simp,[status(thm)],[14732]) ).

thf(14952,plain,
    ( ( ( c @ ( c @ difference ) )
     != ( b @ ( a @ difference ) ) )
    | ( ( c @ ( b @ difference ) )
     != a ) ),
    inference(simp,[status(thm)],[14800]) ).

thf(15175,plain,
    ( ( c != b )
    | ( c != a )
    | ( ( c @ ( b @ difference ) )
     != a ) ),
    inference(simp,[status(thm)],[14952]) ).

thf(6818,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( B @ difference ) @ ( A @ difference ) )
       != ( C @ ( D @ difference ) ) )
      | ( ( A @ ( C @ difference ) )
        = C ) ),
    inference(paramod_ordered,[status(thm)],[4642,9]) ).

thf(6819,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ ( B @ difference ) @ difference ) )
      = ( B @ ( B @ difference ) ) ),
    inference(pattern_uni,[status(thm)],[6818:[bind(A,$thf( A )),bind(B,$thf( F )),bind(C,$thf( F @ ( F @ difference ) )),bind(D,$thf( A ))]]) ).

thf(7121,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ ( B @ difference ) @ difference ) )
      = ( B @ ( B @ difference ) ) ),
    inference(simp,[status(thm)],[6819]) ).

thf(18525,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ ( B @ difference ) @ difference ) )
       != ( c @ ( D @ difference ) ) )
      | ( ( C @ ( B @ ( B @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[7121,4339]) ).

thf(18526,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ ( B @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[18525:[bind(A,$thf( c )),bind(B,$thf( F )),bind(C,$thf( C )),bind(D,$thf( F @ ( F @ difference ) ))]]) ).

thf(19191,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ ( B @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[18526]) ).

thf(2168,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ difference ) @ ( A @ ( C @ difference ) @ difference ) )
       != ( E @ ( D @ difference ) ) )
      | ( ( c @ ( A @ ( C @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[535,1767]) ).

thf(2169,plain,
    ! [B: $i,A: $i] :
      ( ( c @ ( A @ ( B @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[2168:[bind(A,$thf( G )),bind(B,$thf( H )),bind(C,$thf( I )),bind(D,$thf( G @ ( I @ difference ) )),bind(E,$thf( I @ ( H @ difference ) ))]]) ).

thf(2216,plain,
    ! [B: $i,A: $i] :
      ( ( c @ ( A @ ( B @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[2169]) ).

thf(1660,plain,
    ! [B: $i,A: $i] :
      ( ( ( c @ ( A @ difference ) )
       != b )
      | ( c != B ) ),
    inference(simp,[status(thm)],[1642]) ).

thf(1672,plain,
    ! [A: $i] :
      ( ( c @ ( A @ difference ) )
     != b ),
    inference(simp,[status(thm)],[1660]) ).

thf(1684,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( D @ ( A @ ( C @ difference ) @ difference ) @ difference ) @ ( A @ difference ) )
       != ( c @ ( E @ difference ) ) )
      | ( A != b ) ),
    inference(paramod_ordered,[status(thm)],[735,1672]) ).

thf(1691,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( A @ ( C @ ( b @ ( B @ difference ) @ difference ) @ difference ) )
       != c )
      | ( b != D ) ),
    inference(simp,[status(thm)],[1684]) ).

thf(1703,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A @ ( C @ ( b @ ( B @ difference ) @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[1691]) ).

thf(1714,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != ( E @ ( b @ ( D @ difference ) @ difference ) ) )
      | ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[13,1662]) ).

thf(1715,plain,
    ! [B: $i,A: $i] :
      ( ( b @ ( B @ ( A @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[1714:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( b )),bind(D,$thf( A )),bind(E,$thf( B ))]]) ).

thf(12331,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
       != ( D @ ( C @ difference ) ) )
      | ( ( b @ ( B @ ( B @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[12197,1715]) ).

thf(12332,plain,
    ! [A: $i] :
      ( ( b @ ( A @ ( A @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[12331:[bind(A,$thf( G )),bind(B,$thf( H )),bind(C,$thf( H @ ( G @ difference ) )),bind(D,$thf( H @ ( G @ difference ) ))]]) ).

thf(12843,plain,
    ! [A: $i] :
      ( ( b @ ( A @ ( A @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[12332]) ).

thf(13537,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( b @ ( D @ ( D @ difference ) @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[13,12843]) ).

thf(13538,plain,
    ! [A: $i] :
      ( ( A @ ( b @ ( A @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[13537:[bind(A,$thf( B )),bind(B,$thf( B )),bind(C,$thf( b )),bind(D,$thf( B ))]]) ).

thf(13597,plain,
    ! [A: $i] :
      ( ( A @ ( b @ ( A @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[13538]) ).

thf(16569,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( C @ ( b @ ( C @ difference ) @ difference ) ) )
      | ( A != c ) ),
    inference(paramod_ordered,[status(thm)],[9,13597]) ).

thf(16605,plain,
    ! [B: $i,A: $i] :
      ( ( ( c @ ( A @ difference ) )
       != B )
      | ( ( b @ ( B @ difference ) )
       != c ) ),
    inference(simp,[status(thm)],[16569]) ).

thf(16636,plain,
    ! [A: $i] :
      ( ( b @ ( c @ ( A @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[16605]) ).

thf(136,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != ( C @ ( D @ difference ) ) )
      | ( ( A @ ( B @ difference ) @ ( B @ difference ) @ ( C @ difference ) )
        = C ) ),
    inference(paramod_ordered,[status(thm)],[11,9]) ).

thf(137,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ difference ) @ ( B @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
      = ( B @ ( A @ difference ) ) ),
    inference(pattern_uni,[status(thm)],[136:[bind(A,$thf( E )),bind(B,$thf( F )),bind(C,$thf( F @ ( E @ difference ) )),bind(D,$thf( E ))]]) ).

thf(209,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ difference ) @ ( B @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
      = ( B @ ( A @ difference ) ) ),
    inference(simp,[status(thm)],[137]) ).

thf(13663,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( B @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) @ ( b @ difference ) @ ( C @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[209,6057]) ).

thf(13664,plain,
    ( ( b @ ( c @ difference ) )
   != c ),
    inference(pattern_uni,[status(thm)],[13663:[bind(A,$thf( c )),bind(B,$thf( b )),bind(C,$thf( b @ ( c @ difference ) ))]]) ).

thf(7417,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != ( E @ ( b @ ( D @ difference ) @ difference ) ) )
      | ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[13,7347]) ).

thf(7418,plain,
    ! [B: $i,A: $i] :
      ( ( b @ ( B @ ( A @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[7417:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( b )),bind(D,$thf( A )),bind(E,$thf( B ))]]) ).

thf(16671,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( b @ ( c @ ( D @ difference ) @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[13,16636]) ).

thf(16672,plain,
    ! [A: $i] :
      ( ( c @ ( b @ ( A @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[16671:[bind(A,$thf( A )),bind(B,$thf( c )),bind(C,$thf( b )),bind(D,$thf( A ))]]) ).

thf(12222,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
       != ( D @ ( C @ difference ) ) )
      | ( ( c @ ( B @ ( B @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[12197,1767]) ).

thf(12223,plain,
    ! [A: $i] :
      ( ( c @ ( A @ ( A @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[12222:[bind(A,$thf( G )),bind(B,$thf( H )),bind(C,$thf( H @ ( G @ difference ) )),bind(D,$thf( H @ ( G @ difference ) ))]]) ).

thf(13111,plain,
    ! [A: $i] :
      ( ( c @ ( A @ ( A @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[12223]) ).

thf(15401,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( D @ ( D @ difference ) @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[13,13111]) ).

thf(15402,plain,
    ! [A: $i] :
      ( ( A @ ( c @ ( A @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[15401:[bind(A,$thf( B )),bind(B,$thf( B )),bind(C,$thf( c )),bind(D,$thf( B ))]]) ).

thf(15477,plain,
    ! [A: $i] :
      ( ( A @ ( c @ ( A @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[15402]) ).

thf(156,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != ( D @ ( C @ difference ) ) )
      | ( ( A @ ( B @ difference ) @ ( B @ difference ) @ ( C @ difference ) )
        = ( C @ ( D @ difference ) @ ( D @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[11,11]) ).

thf(157,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ ( A @ difference ) @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
      = ( A @ ( B @ difference ) @ ( B @ difference ) @ ( A @ difference ) ) ),
    inference(pattern_uni,[status(thm)],[156:[bind(A,$thf( E )),bind(B,$thf( F )),bind(C,$thf( E )),bind(D,$thf( F @ ( E @ difference ) ))]]) ).

thf(215,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ ( A @ difference ) @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
      = ( A @ ( B @ difference ) @ ( B @ difference ) @ ( A @ difference ) ) ),
    inference(simp,[status(thm)],[157]) ).

thf(16953,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ difference ) @ ( B @ difference ) @ ( A @ difference ) )
      = ( B @ ( A @ difference ) ) ),
    inference(rewrite,[status(thm)],[215,535]) ).

thf(17203,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( B @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ difference ) @ ( b @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != ( c @ ( C @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[16953,5111]) ).

thf(17482,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( B @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( A != b )
      | ( B != c )
      | ( A != C ) ),
    inference(simp,[status(thm)],[17203]) ).

thf(17764,plain,
    ( ( b @ ( c @ difference ) @ ( c @ difference ) )
   != ( c @ ( b @ difference ) ) ),
    inference(simp,[status(thm)],[17482]) ).

thf(18128,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( B @ difference ) @ ( A @ difference ) )
       != ( b @ ( c @ difference ) @ ( c @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != ( c @ ( b @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[16953,17764]) ).

thf(18228,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( B @ difference ) )
       != ( b @ ( c @ difference ) ) )
      | ( A != c )
      | ( B != c )
      | ( A != b ) ),
    inference(simp,[status(thm)],[18128]) ).

thf(18278,plain,
    ( ( ( b @ ( c @ difference ) @ ( c @ difference ) )
     != ( b @ ( c @ difference ) ) )
    | ( c != b ) ),
    inference(simp,[status(thm)],[18228]) ).

thf(18332,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != ( b @ ( c @ difference ) @ ( c @ difference ) ) )
      | ( ( A @ ( B @ difference ) @ ( B @ difference ) )
       != ( b @ ( c @ difference ) ) )
      | ( c != b ) ),
    inference(paramod_ordered,[status(thm)],[11,18278]) ).

thf(18333,plain,
    ( ( ( b @ ( c @ difference ) )
     != ( c @ ( b @ difference ) @ ( b @ difference ) ) )
    | ( c != b ) ),
    inference(pattern_uni,[status(thm)],[18332:[bind(A,$thf( c )),bind(B,$thf( b ))]]) ).

thf(6243,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ difference ) @ ( A @ ( C @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) @ ( c @ ( D @ difference ) @ difference ) ) )
      | ( ( c @ ( D @ difference ) )
       != a )
      | ( ( A @ ( C @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[535,67]) ).

thf(6244,plain,
    ( ( ( c @ ( c @ difference ) )
     != a )
    | ( ( c @ ( b @ ( a @ difference ) @ difference ) )
     != ( c @ ( c @ difference ) ) ) ),
    inference(pattern_uni,[status(thm)],[6243:[bind(A,$thf( c )),bind(B,$thf( b )),bind(C,$thf( c )),bind(D,$thf( c ))]]) ).

thf(8154,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) )
      | ( ( c @ ( c @ difference ) )
       != a )
      | ( ( B @ ( A @ difference ) )
       != ( c @ ( c @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[28,6244]) ).

thf(8186,plain,
    ! [B: $i,A: $i] :
      ( ( B != c )
      | ( ( B @ ( A @ difference ) )
       != ( b @ ( a @ difference ) ) )
      | ( ( c @ ( c @ difference ) )
       != a )
      | ( B != c )
      | ( A != c ) ),
    inference(simp,[status(thm)],[8154]) ).

thf(8358,plain,
    ( ( ( c @ ( c @ difference ) )
     != ( b @ ( a @ difference ) ) )
    | ( ( c @ ( c @ difference ) )
     != a ) ),
    inference(simp,[status(thm)],[8186]) ).

thf(9418,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( c @ ( c @ difference ) ) )
      | ( ( c @ ( c @ difference ) )
       != ( b @ ( a @ difference ) ) )
      | ( A != a ) ),
    inference(paramod_ordered,[status(thm)],[9,8358]) ).

thf(9463,plain,
    ! [A: $i] :
      ( ( ( a @ ( A @ difference ) )
       != c )
      | ( c != a )
      | ( c != b )
      | ( c != a ) ),
    inference(simp,[status(thm)],[9418]) ).

thf(9556,plain,
    ! [A: $i] :
      ( ( ( a @ ( A @ difference ) )
       != c )
      | ( c != b )
      | ( c != a ) ),
    inference(simp,[status(thm)],[9463]) ).

thf(10292,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) @ ( b @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != ( C @ ( C @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[28,7201]) ).

thf(10332,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B
       != ( c @ ( b @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != b )
      | ( B != C )
      | ( A != C ) ),
    inference(simp,[status(thm)],[10292]) ).

thf(10448,plain,
    ( ( c @ ( b @ difference ) @ ( c @ ( b @ difference ) @ difference ) )
   != b ),
    inference(simp,[status(thm)],[10332]) ).

thf(12200,plain,
    ( ( c @ ( c @ difference ) )
   != b ),
    inference(rewrite,[status(thm)],[10448,12197]) ).

thf(9687,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != ( b @ ( C @ difference ) @ ( C @ difference ) ) )
      | ( ( c @ ( A @ ( B @ difference ) @ ( B @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[11,6732]) ).

thf(9688,plain,
    ! [A: $i] :
      ( ( c @ ( A @ ( b @ difference ) @ ( b @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[9687:[bind(A,$thf( A )),bind(B,$thf( b )),bind(C,$thf( A ))]]) ).

thf(7323,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( C @ ( C @ difference ) ) )
      | ( A != b ) ),
    inference(paramod_ordered,[status(thm)],[9,7160]) ).

thf(7341,plain,
    ! [B: $i,A: $i] :
      ( ( ( b @ ( A @ difference ) )
       != B )
      | ( b != B ) ),
    inference(simp,[status(thm)],[7323]) ).

thf(7353,plain,
    ! [A: $i] :
      ( ( b @ ( A @ difference ) )
     != b ),
    inference(simp,[status(thm)],[7341]) ).

thf(18509,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ ( B @ difference ) @ difference ) )
       != ( c @ ( C @ difference ) ) )
      | ( ( D @ ( B @ ( B @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[7121,1665]) ).

thf(18510,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ ( B @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[18509:[bind(A,$thf( c )),bind(B,$thf( F )),bind(C,$thf( F @ ( F @ difference ) )),bind(D,$thf( D ))]]) ).

thf(19186,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ ( B @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[18510]) ).

thf(19999,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != ( D @ ( E @ ( E @ difference ) @ difference ) ) )
      | ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[13,19186]) ).

thf(20000,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ ( B @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[19999:[bind(A,$thf( C )),bind(B,$thf( B )),bind(C,$thf( C )),bind(D,$thf( B )),bind(E,$thf( C ))]]) ).

thf(20065,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( A @ ( B @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[20000]) ).

thf(7639,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ difference ) @ ( A @ ( C @ difference ) @ difference ) )
       != ( E @ ( D @ difference ) ) )
      | ( ( b @ ( A @ ( C @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[535,7418]) ).

thf(7640,plain,
    ! [B: $i,A: $i] :
      ( ( b @ ( A @ ( B @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[7639:[bind(A,$thf( G )),bind(B,$thf( H )),bind(C,$thf( I )),bind(D,$thf( G @ ( I @ difference ) )),bind(E,$thf( I @ ( H @ difference ) ))]]) ).

thf(7676,plain,
    ! [B: $i,A: $i] :
      ( ( b @ ( A @ ( B @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[7640]) ).

thf(12454,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
       != ( C @ ( D @ difference ) ) )
      | ( ( b @ ( B @ ( B @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[12197,7676]) ).

thf(12455,plain,
    ! [A: $i] :
      ( ( b @ ( A @ ( A @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[12454:[bind(A,$thf( G )),bind(B,$thf( H )),bind(C,$thf( H @ ( G @ difference ) )),bind(D,$thf( H @ ( G @ difference ) ))]]) ).

thf(12866,plain,
    ! [A: $i] :
      ( ( b @ ( A @ ( A @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[12455]) ).

thf(9780,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( D @ ( b @ difference ) @ ( b @ difference ) @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[13,9688]) ).

thf(9781,plain,
    ! [A: $i] :
      ( ( A @ ( b @ difference ) @ ( c @ ( b @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[9780:[bind(A,$thf( b )),bind(B,$thf( F @ ( b @ difference ) )),bind(C,$thf( c )),bind(D,$thf( F ))]]) ).

thf(9872,plain,
    ! [A: $i] :
      ( ( A @ ( b @ difference ) @ ( c @ ( b @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[9781]) ).

thf(152,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ difference ) @ ( c @ ( a @ difference ) @ difference ) ) )
      | ( ( A @ ( B @ difference ) @ ( B @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[11,7]) ).

thf(175,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( A
       != ( c @ ( a @ difference ) ) )
      | ( ( A @ ( B @ difference ) @ ( B @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(simp,[status(thm)],[152]) ).

thf(225,plain,
    ! [A: $i] :
      ( ( ( A @ ( c @ ( a @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( ( c @ ( a @ difference ) @ ( A @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(simp,[status(thm)],[175]) ).

thf(144,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( D @ ( C @ difference ) ) )
      | ( ( A @ ( C @ difference ) )
        = ( C @ ( D @ difference ) @ ( D @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[9,11]) ).

thf(145,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( B @ ( A @ difference ) @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
      = ( B @ ( B @ difference ) ) ),
    inference(pattern_uni,[status(thm)],[144:[bind(A,$thf( F )),bind(B,$thf( E )),bind(C,$thf( F )),bind(D,$thf( F @ ( E @ difference ) ))]]) ).

thf(212,plain,
    ! [B: $i,A: $i] :
      ( ( B @ ( B @ ( A @ difference ) @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
      = ( B @ ( B @ difference ) ) ),
    inference(simp,[status(thm)],[145]) ).

thf(19996,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( D @ ( E @ ( E @ difference ) @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[13,19186]) ).

thf(19997,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ ( A @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[19996:[bind(A,$thf( B )),bind(B,$thf( B )),bind(C,$thf( C )),bind(D,$thf( C )),bind(E,$thf( B ))]]) ).

thf(20064,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( B @ ( A @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[19997]) ).

thf(5907,plain,
    ! [A: $i] :
      ( ( ( c @ ( b @ difference ) )
       != c )
      | ( A != b ) ),
    inference(simp,[status(thm)],[5111]) ).

thf(6008,plain,
    ( ( c @ ( b @ difference ) )
   != c ),
    inference(simp,[status(thm)],[5907]) ).

thf(6868,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( B @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( A != c ) ),
    inference(paramod_ordered,[status(thm)],[4642,6008]) ).

thf(6939,plain,
    ! [A: $i] :
      ( ( ( A @ ( A @ difference ) )
       != c )
      | ( c != b ) ),
    inference(simp,[status(thm)],[6868]) ).

thf(7150,plain,
    ! [A: $i] :
      ( ( ( A @ ( A @ difference ) )
       != c )
      | ( c != b ) ),
    inference(simp,[status(thm)],[6939]) ).

thf(4235,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( C @ ( C @ difference ) ) )
      | ( A != c ) ),
    inference(paramod_ordered,[status(thm)],[9,4174]) ).

thf(4247,plain,
    ! [B: $i,A: $i] :
      ( ( ( c @ ( A @ difference ) )
       != B )
      | ( c != B ) ),
    inference(simp,[status(thm)],[4235]) ).

thf(4256,plain,
    ! [A: $i] :
      ( ( c @ ( A @ difference ) )
     != c ),
    inference(simp,[status(thm)],[4247]) ).

thf(4265,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( c @ ( C @ difference ) ) )
      | ( A != c ) ),
    inference(paramod_ordered,[status(thm)],[9,4256]) ).

thf(4281,plain,
    ! [B: $i,A: $i] :
      ( ( c @ ( A @ difference ) @ ( c @ difference ) )
     != ( c @ ( B @ difference ) ) ),
    inference(simp,[status(thm)],[4265]) ).

thf(4293,plain,
    ! [B: $i,A: $i] :
      ( ( c @ ( A @ difference ) @ ( c @ difference ) )
     != ( c @ ( B @ difference ) ) ),
    inference(simp,[status(thm)],[4281]) ).

thf(7972,plain,
    ! [A: $i] :
      ( ( c @ ( A @ difference ) )
     != c ),
    inference(rewrite,[status(thm)],[4293,9]) ).

thf(19672,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( C @ ( c @ ( C @ difference ) @ difference ) ) )
      | ( A != b ) ),
    inference(paramod_ordered,[status(thm)],[9,15477]) ).

thf(19716,plain,
    ! [B: $i,A: $i] :
      ( ( ( b @ ( A @ difference ) )
       != B )
      | ( ( c @ ( B @ difference ) )
       != b ) ),
    inference(simp,[status(thm)],[19672]) ).

thf(19740,plain,
    ! [A: $i] :
      ( ( c @ ( b @ ( A @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[19716]) ).

thf(9050,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( D @ ( c @ ( b @ difference ) @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) @ ( c @ ( b @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[13,8044]) ).

thf(9051,plain,
    ! [A: $i] :
      ( ( c @ ( A @ ( b @ difference ) @ difference ) @ ( c @ ( b @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[9050:[bind(A,$thf( b )),bind(B,$thf( c )),bind(C,$thf( C )),bind(D,$thf( C ))]]) ).

thf(9157,plain,
    ! [A: $i] :
      ( ( c @ ( A @ ( b @ difference ) @ difference ) @ ( c @ ( b @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[9051]) ).

thf(6926,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( B @ difference ) @ ( A @ difference ) )
       != ( E @ ( D @ difference ) @ ( C @ difference ) ) )
      | ( ( A @ ( C @ difference ) @ ( E @ difference ) )
        = E ) ),
    inference(paramod_ordered,[status(thm)],[4642,740]) ).

thf(6927,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( A @ difference ) @ ( B @ difference ) )
      = B ),
    inference(pattern_uni,[status(thm)],[6926:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( A )),bind(D,$thf( B )),bind(E,$thf( B ))]]) ).

thf(1760,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( C @ difference ) ) )
      | ( ( D @ ( B @ ( A @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[28,1665]) ).

thf(1761,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( c @ ( B @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[1760:[bind(A,$thf( E )),bind(B,$thf( c )),bind(C,$thf( c @ ( E @ difference ) )),bind(D,$thf( D ))]]) ).

thf(1795,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( c @ ( B @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[1761]) ).

thf(7408,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( b @ ( C @ difference ) ) )
      | ( ( D @ ( B @ ( A @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[28,7347]) ).

thf(7409,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( b @ ( B @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[7408:[bind(A,$thf( E )),bind(B,$thf( b )),bind(C,$thf( b @ ( E @ difference ) )),bind(D,$thf( D ))]]) ).

thf(7455,plain,
    ! [B: $i,A: $i] :
      ( ( A @ ( b @ ( B @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[7409]) ).

thf(15004,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( b @ ( D @ ( D @ difference ) @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[13,12866]) ).

thf(15005,plain,
    ! [A: $i] :
      ( ( A @ ( b @ ( A @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[15004:[bind(A,$thf( B )),bind(B,$thf( B )),bind(C,$thf( b )),bind(D,$thf( B ))]]) ).

thf(15068,plain,
    ! [A: $i] :
      ( ( A @ ( b @ ( A @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[15005]) ).

thf(21474,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ difference ) @ ( A @ ( C @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) @ ( D @ difference ) @ ( D @ difference ) ) )
      | ( ( A @ ( C @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[535,10407]) ).

thf(21475,plain,
    ! [A: $i] :
      ( ( A @ ( c @ ( b @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[21474:[bind(A,$thf( H )),bind(B,$thf( H @ ( c @ ( b @ difference ) @ difference ) )),bind(C,$thf( c @ ( b @ difference ) )),bind(D,$thf( H @ ( c @ ( b @ difference ) @ difference ) ))]]) ).

thf(21575,plain,
    ! [A: $i] :
      ( ( A @ ( c @ ( b @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[21475]) ).

thf(1651,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( D @ ( A @ ( C @ difference ) @ difference ) @ difference ) @ ( A @ difference ) )
       != ( b @ ( E @ difference ) ) )
      | ( A != c ) ),
    inference(paramod_ordered,[status(thm)],[735,1639]) ).

thf(1655,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( A @ ( C @ ( c @ ( B @ difference ) @ difference ) @ difference ) )
       != b )
      | ( c != D ) ),
    inference(simp,[status(thm)],[1651]) ).

thf(1667,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( A @ ( C @ ( c @ ( B @ difference ) @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[1655]) ).

thf(9611,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( a @ ( C @ difference ) ) )
      | ( A != c )
      | ( c != b )
      | ( c != a ) ),
    inference(paramod_ordered,[status(thm)],[9,9556]) ).

thf(9636,plain,
    ! [B: $i,A: $i] :
      ( ( ( c @ ( A @ difference ) )
       != a )
      | ( c != B )
      | ( c != b )
      | ( c != a ) ),
    inference(simp,[status(thm)],[9611]) ).

thf(9642,plain,
    ! [A: $i] :
      ( ( ( c @ ( A @ difference ) )
       != a )
      | ( c != b )
      | ( c != a ) ),
    inference(simp,[status(thm)],[9636]) ).

thf(4791,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ difference ) @ ( A @ ( C @ difference ) @ difference ) )
       != ( E @ ( D @ difference ) ) )
      | ( ( c @ ( A @ ( C @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[535,4311]) ).

thf(4792,plain,
    ! [B: $i,A: $i] :
      ( ( c @ ( A @ ( B @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[4791:[bind(A,$thf( G )),bind(B,$thf( H )),bind(C,$thf( I )),bind(D,$thf( G @ ( I @ difference ) )),bind(E,$thf( I @ ( H @ difference ) ))]]) ).

thf(4831,plain,
    ! [B: $i,A: $i] :
      ( ( c @ ( A @ ( B @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[4792]) ).

thf(12509,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
       != ( C @ ( D @ difference ) ) )
      | ( ( c @ ( B @ ( B @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[12197,4831]) ).

thf(12510,plain,
    ! [A: $i] :
      ( ( c @ ( A @ ( A @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[12509:[bind(A,$thf( G )),bind(B,$thf( H )),bind(C,$thf( H @ ( G @ difference ) )),bind(D,$thf( H @ ( G @ difference ) ))]]) ).

thf(12880,plain,
    ! [A: $i] :
      ( ( c @ ( A @ ( A @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[12510]) ).

thf(15097,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( D @ ( D @ difference ) @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[13,12880]) ).

thf(15098,plain,
    ! [A: $i] :
      ( ( A @ ( c @ ( A @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[15097:[bind(A,$thf( B )),bind(B,$thf( B )),bind(C,$thf( c )),bind(D,$thf( B ))]]) ).

thf(15173,plain,
    ! [A: $i] :
      ( ( A @ ( c @ ( A @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[15098]) ).

thf(38,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( ( B @ ( A @ difference ) @ ( c @ ( a @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[28,7]) ).

thf(48,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != c )
      | ( ( c @ ( a @ difference ) )
       != ( b @ ( a @ difference ) ) ) ),
    inference(simp,[status(thm)],[38]) ).

thf(39,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) @ ( c @ ( a @ difference ) @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[28,7]) ).

thf(52,plain,
    ! [B: $i,A: $i] :
      ( ( B
       != ( c @ ( b @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != ( c @ ( a @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(simp,[status(thm)],[39]) ).

thf(63,plain,
    ! [A: $i] :
      ( ( ( c @ ( b @ difference ) @ ( A @ difference ) )
       != ( c @ ( a @ difference ) ) )
      | ( ( c @ ( b @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(simp,[status(thm)],[52]) ).

thf(8023,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ difference ) @ ( C @ difference ) ) )
      | ( ( A @ ( C @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[9,6679]) ).

thf(8024,plain,
    ( ( c @ ( c @ difference ) )
   != c ),
    inference(pattern_uni,[status(thm)],[8023:[bind(A,$thf( c )),bind(B,$thf( b )),bind(C,$thf( c ))]]) ).

thf(8118,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( B @ difference ) @ ( A @ difference ) )
       != ( c @ ( c @ difference ) ) )
      | ( A != c ) ),
    inference(paramod_ordered,[status(thm)],[4642,8024]) ).

thf(8120,plain,
    ! [A: $i] :
      ( ( A @ ( A @ difference ) @ ( c @ difference ) )
     != ( c @ ( c @ difference ) ) ),
    inference(simp,[status(thm)],[8118]) ).

thf(8143,plain,
    ! [A: $i] :
      ( ( A @ ( A @ difference ) @ ( c @ difference ) )
     != ( c @ ( c @ difference ) ) ),
    inference(simp,[status(thm)],[8120]) ).

thf(6938,plain,
    ! [A: $i] :
      ( ( A @ ( A @ difference ) @ ( c @ difference ) )
     != ( c @ ( b @ difference ) ) ),
    inference(simp,[status(thm)],[6868]) ).

thf(7149,plain,
    ! [A: $i] :
      ( ( A @ ( A @ difference ) @ ( c @ difference ) )
     != ( c @ ( b @ difference ) ) ),
    inference(simp,[status(thm)],[6938]) ).

thf(9413,plain,
    ( ( c != b )
    | ( c != a )
    | ( ( c @ ( c @ difference ) )
     != a ) ),
    inference(simp,[status(thm)],[8358]) ).

thf(4132,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( b @ ( D @ difference ) @ ( C @ difference ) ) )
      | ( ( A @ ( C @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[9,1756]) ).

thf(4133,plain,
    ( ( b @ ( b @ difference ) )
   != c ),
    inference(pattern_uni,[status(thm)],[4132:[bind(A,$thf( b )),bind(B,$thf( B )),bind(C,$thf( b )),bind(D,$thf( B ))]]) ).

thf(6886,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( B @ difference ) @ ( A @ difference ) )
       != ( b @ ( b @ difference ) ) )
      | ( A != c ) ),
    inference(paramod_ordered,[status(thm)],[4642,4133]) ).

thf(7108,plain,
    ! [A: $i] :
      ( ( A @ ( A @ difference ) @ ( c @ difference ) )
     != ( b @ ( b @ difference ) ) ),
    inference(simp,[status(thm)],[6886]) ).

thf(7319,plain,
    ! [A: $i] :
      ( ( A @ ( A @ difference ) @ ( c @ difference ) )
     != ( b @ ( b @ difference ) ) ),
    inference(simp,[status(thm)],[7108]) ).

thf(10287,plain,
    ! [A: $i] :
      ( ( A
       != ( c @ ( b @ difference ) ) )
      | ( A != b ) ),
    inference(simp,[status(thm)],[7201]) ).

thf(10439,plain,
    ( ( c @ ( b @ difference ) )
   != b ),
    inference(simp,[status(thm)],[10287]) ).

thf(18791,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ ( B @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) @ ( b @ difference ) ) )
      | ( ( B @ ( B @ difference ) )
       != ( c @ ( C @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[7121,5111]) ).

thf(19170,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ ( B @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) @ ( b @ difference ) ) )
      | ( B != c )
      | ( B != C ) ),
    inference(simp,[status(thm)],[18791]) ).

thf(19531,plain,
    ! [A: $i] :
      ( ( A @ ( c @ ( c @ difference ) @ difference ) )
     != ( c @ ( b @ difference ) @ ( b @ difference ) ) ),
    inference(simp,[status(thm)],[19170]) ).

thf(20178,plain,
    ( ( c @ ( c @ difference ) )
   != ( c @ ( b @ difference ) @ ( b @ difference ) ) ),
    inference(rewrite,[status(thm)],[19531,7121]) ).

thf(1683,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( c @ ( C @ difference ) ) )
      | ( A != b ) ),
    inference(paramod_ordered,[status(thm)],[9,1672]) ).

thf(1687,plain,
    ! [B: $i,A: $i] :
      ( ( b @ ( A @ difference ) @ ( b @ difference ) )
     != ( c @ ( B @ difference ) ) ),
    inference(simp,[status(thm)],[1683]) ).

thf(1699,plain,
    ! [B: $i,A: $i] :
      ( ( b @ ( A @ difference ) @ ( b @ difference ) )
     != ( c @ ( B @ difference ) ) ),
    inference(simp,[status(thm)],[1687]) ).

thf(3398,plain,
    ! [A: $i] :
      ( ( c @ ( A @ difference ) )
     != b ),
    inference(rewrite,[status(thm)],[1699,9]) ).

thf(10291,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( B @ ( A @ difference ) @ difference ) )
       != ( C @ ( C @ difference ) ) )
      | ( ( B @ ( A @ difference ) )
       != ( c @ ( b @ difference ) @ ( b @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[28,7201]) ).

thf(10348,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B != C )
      | ( ( B @ ( A @ difference ) )
       != C )
      | ( B
       != ( c @ ( b @ difference ) ) )
      | ( A != b ) ),
    inference(simp,[status(thm)],[10291]) ).

thf(10464,plain,
    ( ( c @ ( b @ difference ) @ ( b @ difference ) )
   != ( c @ ( b @ difference ) ) ),
    inference(simp,[status(thm)],[10348]) ).

thf(12269,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
       != ( E @ ( b @ ( D @ difference ) @ difference ) ) )
      | ( ( C @ ( B @ ( B @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[12197,1703]) ).

thf(12270,plain,
    ! [A: $i] :
      ( ( A @ ( b @ ( b @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[12269:[bind(A,$thf( F )),bind(B,$thf( b )),bind(C,$thf( C )),bind(D,$thf( F )),bind(E,$thf( b @ ( F @ difference ) ))]]) ).

thf(13120,plain,
    ! [A: $i] :
      ( ( A @ ( b @ ( b @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[12270]) ).

thf(13303,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( D @ ( b @ ( b @ difference ) @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[13,13120]) ).

thf(13304,plain,
    ! [A: $i] :
      ( ( b @ ( A @ ( b @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[13303:[bind(A,$thf( b )),bind(B,$thf( b )),bind(C,$thf( C )),bind(D,$thf( C ))]]) ).

thf(13357,plain,
    ! [A: $i] :
      ( ( b @ ( A @ ( b @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[13304]) ).

thf(1817,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ difference ) @ ( A @ ( C @ difference ) @ difference ) )
       != ( E @ ( D @ difference ) ) )
      | ( ( b @ ( A @ ( C @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[535,1715]) ).

thf(1818,plain,
    ! [B: $i,A: $i] :
      ( ( b @ ( A @ ( B @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[1817:[bind(A,$thf( G )),bind(B,$thf( H )),bind(C,$thf( I )),bind(D,$thf( G @ ( I @ difference ) )),bind(E,$thf( I @ ( H @ difference ) ))]]) ).

thf(1866,plain,
    ! [B: $i,A: $i] :
      ( ( b @ ( A @ ( B @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[1818]) ).

thf(7361,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( b @ ( C @ difference ) ) )
      | ( A != b ) ),
    inference(paramod_ordered,[status(thm)],[9,7353]) ).

thf(7374,plain,
    ! [B: $i,A: $i] :
      ( ( b @ ( A @ difference ) @ ( b @ difference ) )
     != ( b @ ( B @ difference ) ) ),
    inference(simp,[status(thm)],[7361]) ).

thf(7390,plain,
    ! [B: $i,A: $i] :
      ( ( b @ ( A @ difference ) @ ( b @ difference ) )
     != ( b @ ( B @ difference ) ) ),
    inference(simp,[status(thm)],[7374]) ).

thf(11412,plain,
    ! [A: $i] :
      ( ( b @ ( A @ difference ) )
     != b ),
    inference(rewrite,[status(thm)],[7390,9]) ).

thf(7916,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( ( B @ ( B @ difference ) @ ( A @ difference ) )
       != ( C @ ( b @ difference ) ) )
      | ( ( A @ ( C @ ( b @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[4642,4195]) ).

thf(7917,plain,
    ! [A: $i] :
      ( ( b @ ( A @ ( A @ difference ) @ ( b @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[7916:[bind(A,$thf( b )),bind(B,$thf( E )),bind(C,$thf( E @ ( E @ difference ) ))]]) ).

thf(7950,plain,
    ! [A: $i] :
      ( ( b @ ( A @ ( A @ difference ) @ ( b @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[7917]) ).

thf(9667,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ ( D @ difference ) @ ( D @ difference ) @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[13,6732]) ).

thf(9668,plain,
    ! [A: $i] :
      ( ( b @ ( A @ difference ) @ ( c @ ( A @ difference ) @ difference ) )
     != c ),
    inference(pattern_uni,[status(thm)],[9667:[bind(A,$thf( E )),bind(B,$thf( b @ ( E @ difference ) )),bind(C,$thf( c )),bind(D,$thf( E ))]]) ).

thf(9736,plain,
    ! [A: $i] :
      ( ( b @ ( A @ difference ) @ ( c @ ( A @ difference ) @ difference ) )
     != c ),
    inference(simp,[status(thm)],[9668]) ).

thf(17,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ difference ) @ ( c @ ( a @ difference ) @ difference ) ) )
      | ( A
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[9,7]) ).

thf(27,plain,
    ! [A: $i] :
      ( ( ( c @ ( b @ ( a @ difference ) @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( ( c @ ( b @ ( a @ difference ) @ difference ) )
       != ( c @ ( a @ difference ) ) ) ),
    inference(simp,[status(thm)],[17]) ).

thf(36,plain,
    ! [A: $i] :
      ( ( ( c @ ( b @ ( a @ difference ) @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( ( c @ ( b @ ( a @ difference ) @ difference ) )
       != ( c @ ( a @ difference ) ) ) ),
    inference(simp,[status(thm)],[27]) ).

thf(15,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( A @ difference ) )
       != ( c @ ( a @ difference ) ) )
      | ( ( c @ ( b @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[9,7]) ).

thf(21,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) )
       != c )
      | ( A != a )
      | ( ( c @ ( b @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(simp,[status(thm)],[15]) ).

thf(30,plain,
    ! [A: $i] :
      ( ( ( a @ ( A @ difference ) )
       != c )
      | ( ( c @ ( b @ ( a @ difference ) @ difference ) )
       != ( c @ ( b @ difference ) @ ( a @ difference ) ) ) ),
    inference(simp,[status(thm)],[21]) ).

thf(151,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( ( A @ ( B @ difference ) @ ( B @ difference ) @ ( c @ ( a @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[11,7]) ).

thf(190,plain,
    ! [B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( A @ difference ) )
       != ( c @ ( b @ difference ) ) )
      | ( ( A @ ( B @ difference ) @ ( B @ difference ) )
       != c )
      | ( ( c @ ( a @ difference ) )
       != ( b @ ( a @ difference ) ) ) ),
    inference(simp,[status(thm)],[151]) ).

thf(21598,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( D @ ( c @ ( b @ difference ) @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[13,21575]) ).

thf(21599,plain,
    ! [A: $i] :
      ( ( c @ ( A @ ( b @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[21598:[bind(A,$thf( b )),bind(B,$thf( c )),bind(C,$thf( C )),bind(D,$thf( C ))]]) ).

thf(21666,plain,
    ! [A: $i] :
      ( ( c @ ( A @ ( b @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[21599]) ).

thf(9953,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( A @ ( B @ difference ) @ difference ) @ ( A @ difference ) )
       != ( D @ ( b @ difference ) ) )
      | ( ( A @ ( c @ ( b @ difference ) @ difference ) )
       != c ) ),
    inference(paramod_ordered,[status(thm)],[532,9872]) ).

thf(9954,plain,
    ( ( b @ ( c @ ( b @ difference ) @ difference ) )
   != c ),
    inference(pattern_uni,[status(thm)],[9953:[bind(A,$thf( b )),bind(B,$thf( G )),bind(C,$thf( F )),bind(D,$thf( F @ ( b @ ( G @ difference ) @ difference ) ))]]) ).

thf(12375,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( ( B @ ( A @ difference ) @ ( B @ ( A @ difference ) @ difference ) )
       != ( E @ ( c @ ( D @ difference ) @ difference ) ) )
      | ( ( C @ ( B @ ( B @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[12197,1667]) ).

thf(12376,plain,
    ! [A: $i] :
      ( ( A @ ( c @ ( c @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[12375:[bind(A,$thf( F )),bind(B,$thf( c )),bind(C,$thf( C )),bind(D,$thf( F )),bind(E,$thf( c @ ( F @ difference ) ))]]) ).

thf(12851,plain,
    ! [A: $i] :
      ( ( A @ ( c @ ( c @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[12376]) ).

thf(13235,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( C @ ( B @ ( A @ difference ) @ difference ) )
       != ( D @ ( c @ ( c @ difference ) @ difference ) ) )
      | ( ( B @ ( C @ ( A @ difference ) @ difference ) )
       != b ) ),
    inference(paramod_ordered,[status(thm)],[13,12851]) ).

thf(13236,plain,
    ! [A: $i] :
      ( ( c @ ( A @ ( c @ difference ) @ difference ) )
     != b ),
    inference(pattern_uni,[status(thm)],[13235:[bind(A,$thf( c )),bind(B,$thf( c )),bind(C,$thf( C )),bind(D,$thf( C ))]]) ).

thf(13289,plain,
    ! [A: $i] :
      ( ( c @ ( A @ ( c @ difference ) @ difference ) )
     != b ),
    inference(simp,[status(thm)],[13236]) ).

thf(7109,plain,
    ! [A: $i] :
      ( ( ( A @ ( A @ difference ) )
       != b )
      | ( c != b ) ),
    inference(simp,[status(thm)],[6886]) ).

thf(7320,plain,
    ! [A: $i] :
      ( ( ( A @ ( A @ difference ) )
       != b )
      | ( c != b ) ),
    inference(simp,[status(thm)],[7109]) ).

thf(153,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) @ ( B @ difference ) )
       != ( c @ ( a @ difference ) ) )
      | ( ( c @ ( b @ difference ) @ ( B @ ( A @ difference ) @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(paramod_ordered,[status(thm)],[11,7]) ).

thf(172,plain,
    ! [B: $i,A: $i] :
      ( ( ( A @ ( B @ difference ) )
       != c )
      | ( B != a )
      | ( ( c @ ( b @ difference ) @ ( B @ ( A @ difference ) @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(simp,[status(thm)],[153]) ).

thf(222,plain,
    ! [A: $i] :
      ( ( ( A @ ( a @ difference ) )
       != c )
      | ( ( c @ ( b @ difference ) @ ( a @ ( A @ difference ) @ ( A @ difference ) @ difference ) )
       != ( c @ ( b @ ( a @ difference ) @ difference ) ) ) ),
    inference(simp,[status(thm)],[172]) ).

thf(41693,plain,
    $false,
    inference(e,[status(thm)],[12362,10407,8,1665,1767,88,8044,4339,4311,5,202,6732,6057,1750,10,1756,7949,15175,19191,2216,1703,16636,12843,13664,12197,7418,16672,15477,16953,18333,4253,9556,12200,9688,7353,28,20065,3033,8358,6677,9,1672,12866,12414,19186,9872,225,212,13597,20064,13,1715,7150,7972,7160,19740,4256,9157,6927,1795,12,7201,7347,7455,15068,6613,21575,7,1667,535,9642,15173,1662,209,6008,17764,48,63,8143,5111,67,7149,9413,8024,7319,6244,10439,6679,20178,4133,11,3398,7676,10464,13357,1866,11412,7950,1639,12880,9736,14952,36,30,18278,735,7121,190,13111,532,740,21666,4831,9954,4642,13289,7320,222,4174]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : ALG007-1 : TPTP v9.3.1. Released v2.2.0.
% 0.00/0.07  % Command  : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% 0.14/0.40  % Computer : n016.cluster.edu
% 0.14/0.40  % Model    : x86_64 x86_64
% 0.14/0.40  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.40  % Memory   : 8046.5625MB
% 0.14/0.40  % OS       : Linux 6.8.0-71-generic
% 0.14/0.40  % CPULimit : 300
% 0.14/0.40  % WCLimit  : 300
% 0.14/0.40  % DateTime : Sat Sep 26 21:03:02 UTC 2026
% 0.14/0.40  % CPUTime  : 
% 0.14/0.40  Running java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% 0.85/0.99  % [INFO] 	 Parsing problem /export/starexec/sandbox2/benchmark/theBenchmark.p ... 
% 1.22/1.16  % [INFO] 	 Parsing done (165ms). 
% 1.22/1.18  % [INFO] 	 Running in sequential loop mode. 
% 1.76/1.57  % [INFO] 	 eprover registered as external prover. 
% 1.76/1.58  % [INFO] 	 Scanning for conjecture ... 
% 1.95/1.65  % [INFO] 	 Found a conjecture (or negated_conjecture) and 3 axioms. Running axiom selection ... 
% 1.95/1.68  % [INFO] 	 Axiom selection finished. Selected 3 axioms (removed 0 axioms). 
% 1.95/1.69  % [INFO] 	 Problem is propositional (TPTP CNF). 
% 2.12/1.70  % [INFO] 	 Type checking passed. 
% 2.12/1.70  % [CONFIG] 	 Using configuration: timeout(300) with strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>.  Searching for refutation ... 
% 73.13/17.72  % External prover 'e' found a proof!
% 73.13/17.72  % [INFO] 	 Killing All external provers ... 
% 73.13/17.73  % Time passed: 17181ms (effective reasoning time: 16543ms)
% 73.13/17.73  % Axioms used in derivation (3): set_difference_1, set_difference_2, set_difference_3_simplified
% 73.13/17.73  % No. of inferences in proof: 340
% 73.13/17.73  % SZS status Unsatisfiable for /export/starexec/sandbox2/benchmark/theBenchmark.p : 17181 ms resp. 16543 ms w/o parsing
% 61.12/17.90  % SZS output start Refutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 61.12/17.91  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------