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Leo-III---1.8.0.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : Leo-III---1.8.0
% Problem  : NUM637^1 : TPTP v9.3.1. Released v3.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39

% Computer : n002.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 : Wed Sep 30 08:17:51 AM UTC 2026

% Result   : Theorem 34.48s 8.44s
% Output   : Refutation 29.74s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   26
%            Number of leaves      :    7
% Syntax   : Number of formulae    :  152 (  50 unt;   0 typ;   1 def)
%            Number of atoms       :  453 ( 126 equ;  19 cnn)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives : 1578 ( 289   ~; 205   |;   1   &;1071   @)
%                                         (   0 <=>;  12  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   15 (   8 avg)
%            Number of types       :    3 (   2 usr)
%            Number of type conns  :  135 ( 135   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   11 (   7 usr;   5 con; 0-2 aty)
%            Number of variables   :  449 ( 156   ^; 291   !;   1   ?; 449   :)
%                                         (   0  !>;   0  ?*;   0  @-;   1  @+)

% Comments : 
%------------------------------------------------------------------------------
thf(nat_type,type,
    nat: $tType ).

thf(set_type,type,
    set: $tType ).

thf(x_decl,type,
    x: nat ).

thf(n_1_decl,type,
    n_1: nat ).

thf(suc_decl,type,
    suc: nat > nat ).

thf(esti_decl,type,
    esti: nat > set > $o ).

thf(setof_decl,type,
    setof: ( nat > $o ) > set ).

thf(sk1_decl,type,
    sk1: set > nat ).

thf(sk3_decl,type,
    sk3: ( nat > $o ) > nat ).

thf(sk1_def,definition,
    ( sk1
    = ( ^ [A: set] :
        @+[B: nat] :
          ~ ( ( esti @ B @ A )
           => ( esti @ ( suc @ B ) @ A ) ) ) ) ).

thf(6,axiom,
    ! [A: nat > $o,B: nat] :
      ( ( A @ B )
     => ( esti @ B @ ( setof @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',estii) ).

thf(22,plain,
    ! [A: nat > $o,B: nat] :
      ( ( A @ B )
     => ( esti @ B @ ( setof @ A ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).

thf(23,plain,
    ! [B: nat,A: nat > $o] :
      ( ~ ( A @ B )
      | ( esti @ B @ ( setof @ A ) ) ),
    inference(cnf,[status(esa)],[22]) ).

thf(100,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ~ ( B @ A )
      | ( esti @ A
        @ ( setof
          @ ^ [C: nat] :
              ~ ( B @ C ) ) ) ),
    inference(prim_subst,[status(thm)],[23:[bind(A,$thf( ^ [D: nat] : ~ ( C @ D ) ))]]) ).

thf(117,plain,
    ! [B: nat > $o,A: nat] :
      ( ( B @ A )
      | ( esti @ A
        @ ( setof
          @ ^ [C: nat] :
              ~ ( B @ C ) ) ) ),
    inference(cnf,[status(esa)],[100]) ).

thf(118,plain,
    ! [B: nat > $o,A: nat] :
      ( ( B @ A )
      | ( esti @ A
        @ ( setof
          @ ^ [C: nat] :
              ~ ( B @ C ) ) ) ),
    inference(simp,[status(thm)],[117]) ).

thf(5,axiom,
    ! [A: set] :
      ( ( esti @ n_1 @ A )
     => ( ! [B: nat] :
            ( ( esti @ B @ A )
           => ( esti @ ( suc @ B ) @ A ) )
       => ! [B: nat] : ( esti @ B @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax5) ).

thf(18,plain,
    ! [A: set] :
      ( ( esti @ n_1 @ A )
     => ( ! [B: nat] :
            ( ( esti @ B @ A )
           => ( esti @ ( suc @ B ) @ A ) )
       => ! [B: nat] : ( esti @ B @ A ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).

thf(19,plain,
    ! [B: nat,A: set] :
      ( ( ~ ( esti @ n_1 @ A )
        | ( esti @ ( sk1 @ A ) @ A )
        | ( esti @ B @ A ) )
      & ( ~ ( esti @ n_1 @ A )
        | ~ ( esti @ ( suc @ ( sk1 @ A ) ) @ A )
        | ( esti @ B @ A ) ) ),
    inference(cnf,[status(esa)],[18]) ).

thf(20,plain,
    ! [B: nat,A: set] :
      ( ~ ( esti @ n_1 @ A )
      | ( esti @ ( sk1 @ A ) @ A )
      | ( esti @ B @ A ) ),
    inference(cnfConj,[status(thm)],[19]) ).

thf(69,plain,
    ! [B: nat,A: set] :
      ( ~ ( esti @ n_1 @ A )
      | ( esti @ ( sk1 @ A ) @ A )
      | ( ( esti @ B @ A )
       != ( esti @ ( sk1 @ A ) @ A ) )
      | ~ $true ),
    inference(eqfactor_ordered,[status(thm)],[20]) ).

thf(70,plain,
    ! [A: set] :
      ( ~ ( esti @ n_1 @ A )
      | ( esti @ ( sk1 @ A ) @ A ) ),
    inference(pattern_uni,[status(thm)],[69:[bind(A,$thf( C )),bind(B,$thf( sk1 @ C ))]]) ).

thf(75,plain,
    ! [A: set] :
      ( ~ ( esti @ n_1 @ A )
      | ( esti @ ( sk1 @ A ) @ A ) ),
    inference(simp,[status(thm)],[70]) ).

thf(484,plain,
    ! [C: set,B: nat > $o,A: nat] :
      ( ( B @ A )
      | ~ $true
      | ( esti @ ( sk1 @ C ) @ C )
      | ( ( esti @ A
          @ ( setof
            @ ^ [D: nat] :
                ~ ( B @ D ) ) )
       != ( esti @ n_1 @ C ) ) ),
    inference(paramod_ordered,[status(thm)],[118,75]) ).

thf(485,plain,
    ! [C: set,B: nat > $o,A: nat] :
      ( ( B @ A )
      | ( esti @ ( sk1 @ C ) @ C )
      | ( ( esti @ A
          @ ( setof
            @ ^ [D: nat] :
                ~ ( B @ D ) ) )
       != ( esti @ n_1 @ C ) ) ),
    inference(simp,[status(thm)],[484]) ).

thf(486,plain,
    ! [A: nat > $o] :
      ( ( A @ n_1 )
      | ( esti
        @ ( sk1
          @ ( setof
            @ ^ [B: nat] :
                ~ ( A @ B ) ) )
        @ ( setof
          @ ^ [B: nat] :
              ~ ( A @ B ) ) ) ),
    inference(pattern_uni,[status(thm)],[485:[bind(A,$thf( n_1 )),bind(B,$thf( E )),bind(C,$thf( setof @ ^ [E: nat] : ~ ( E @ E ) ))]]) ).

thf(580,plain,
    ! [A: nat > $o] :
      ( ( A @ n_1 )
      | ( esti
        @ ( sk1
          @ ( setof
            @ ^ [B: nat] :
                ~ ( A @ B ) ) )
        @ ( setof
          @ ^ [B: nat] :
              ~ ( A @ B ) ) ) ),
    inference(simp,[status(thm)],[486]) ).

thf(4,axiom,
    ! [A: nat > $o,B: nat] :
      ( ( esti @ B @ ( setof @ A ) )
     => ( A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',estie) ).

thf(16,plain,
    ! [A: nat > $o,B: nat] :
      ( ( esti @ B @ ( setof @ A ) )
     => ( A @ B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).

thf(17,plain,
    ! [B: nat,A: nat > $o] :
      ( ~ ( esti @ B @ ( setof @ A ) )
      | ( A @ B ) ),
    inference(cnf,[status(esa)],[16]) ).

thf(32,plain,
    ! [A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [B: nat] : $false ) )
      | $false ),
    inference(prim_subst,[status(thm)],[17:[bind(A,$thf( ^ [C: nat] : $false ))]]) ).

thf(35,plain,
    ! [A: nat] :
      ~ ( esti @ A
        @ ( setof
          @ ^ [B: nat] : $false ) ),
    inference(simp,[status(thm)],[32]) ).

thf(1046,plain,
    ! [B: nat,A: nat > $o] :
      ( ( esti
        @ ( sk1
          @ ( setof
            @ ^ [C: nat] :
                ~ ( A @ C ) ) )
        @ ( setof
          @ ^ [C: nat] :
              ~ ( A @ C ) ) )
      | ~ $true
      | ( ( A @ n_1 )
       != ( esti @ B
          @ ( setof
            @ ^ [C: nat] : $false ) ) ) ),
    inference(paramod_ordered,[status(thm)],[580,35]) ).

thf(1047,plain,
    ! [B: nat,A: nat > $o] :
      ( ( esti
        @ ( sk1
          @ ( setof
            @ ^ [C: nat] :
                ~ ( A @ C ) ) )
        @ ( setof
          @ ^ [C: nat] :
              ~ ( A @ C ) ) )
      | ( ( A @ n_1 )
       != ( esti @ B
          @ ( setof
            @ ^ [C: nat] : $false ) ) ) ),
    inference(simp,[status(thm)],[1046]) ).

thf(1120,plain,
    ! [A: nat > nat] :
      ( esti
      @ ( sk1
        @ ( setof
          @ ^ [B: nat] :
              ~ ( esti @ ( A @ B )
                @ ( setof
                  @ ^ [C: nat] : $false ) ) ) )
      @ ( setof
        @ ^ [B: nat] :
            ~ ( esti @ ( A @ B )
              @ ( setof
                @ ^ [C: nat] : $false ) ) ) ),
    inference(pre_uni,[status(thm)],[1047:[bind(A,$thf( ^ [D: nat] : ( esti @ ( C @ D ) @ ( setof @ ^ [E: nat] : $false ) ) )),bind(B,$thf( C @ n_1 ))]]) ).

thf(1168,plain,
    ! [A: nat > nat] :
      ( esti
      @ ( sk1
        @ ( setof
          @ ^ [B: nat] :
              ~ ( esti @ ( A @ B )
                @ ( setof
                  @ ^ [C: nat] : $false ) ) ) )
      @ ( setof
        @ ^ [B: nat] :
            ~ ( esti @ ( A @ B )
              @ ( setof
                @ ^ [C: nat] : $false ) ) ) ),
    inference(simp,[status(thm)],[1120]) ).

thf(1369,plain,
    ( esti
    @ ( sk1
      @ ( setof
        @ ^ [A: nat] : ~ $false ) )
    @ ( setof
      @ ^ [A: nat] : ~ $false ) ),
    inference(rewrite,[status(thm)],[1168,35]) ).

thf(1370,plain,
    ( esti
    @ ( sk1
      @ ( setof
        @ ^ [A: nat] : $true ) )
    @ ( setof
      @ ^ [A: nat] : $true ) ),
    inference(simp,[status(thm)],[1369]) ).

thf(29,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [C: nat] :
                ~ ( B @ C ) ) )
      | ~ ( B @ A ) ),
    inference(prim_subst,[status(thm)],[17:[bind(A,$thf( ^ [D: nat] : ~ ( C @ D ) ))]]) ).

thf(38,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [C: nat] :
                ~ ( B @ C ) ) )
      | ~ ( B @ A ) ),
    inference(cnf,[status(esa)],[29]) ).

thf(39,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [C: nat] :
                ~ ( B @ C ) ) )
      | ~ ( B @ A ) ),
    inference(simp,[status(thm)],[38]) ).

thf(1390,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ $true
      | ~ ( B @ A )
      | ( ( esti
          @ ( sk1
            @ ( setof
              @ ^ [C: nat] : $true ) )
          @ ( setof
            @ ^ [C: nat] : $true ) )
       != ( esti @ A
          @ ( setof
            @ ^ [C: nat] :
                ~ ( B @ C ) ) ) ) ),
    inference(paramod_ordered,[status(thm)],[1370,39]) ).

thf(1391,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ( B @ A )
      | ( ( esti
          @ ( sk1
            @ ( setof
              @ ^ [C: nat] : $true ) )
          @ ( setof
            @ ^ [C: nat] : $true ) )
       != ( esti @ A
          @ ( setof
            @ ^ [C: nat] :
                ~ ( B @ C ) ) ) ) ),
    inference(simp,[status(thm)],[1390]) ).

thf(1431,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ( B @ A )
      | ( ( sk1
          @ ( setof
            @ ^ [C: nat] : $true ) )
       != A )
      | ( ( setof
          @ ^ [C: nat] :
              ~ ( B @ C ) )
       != ( setof
          @ ^ [C: nat] : $true ) ) ),
    inference(simp,[status(thm)],[1391]) ).

thf(1458,plain,
    ! [A: nat > $o] :
      ( ~ ( A
          @ ( sk1
            @ ( setof
              @ ^ [B: nat] : $true ) ) )
      | ( ( setof
          @ ^ [B: nat] :
              ~ ( A @ B ) )
       != ( setof
          @ ^ [B: nat] : $true ) ) ),
    inference(simp,[status(thm)],[1431]) ).

thf(3116,plain,
    ! [A: nat > $o] :
      ( ~ ( A
          @ ( sk1
            @ ( setof
              @ ^ [B: nat] : $true ) ) )
      | ( ( ^ [B: nat] :
              ~ ( A @ B ) )
       != ( ^ [B: nat] : $true ) ) ),
    inference(simp,[status(thm)],[1458]) ).

thf(1049,plain,
    ! [B: nat,A: nat > $o] :
      ( ( A @ n_1 )
      | ~ $true
      | ( ( esti
          @ ( sk1
            @ ( setof
              @ ^ [C: nat] :
                  ~ ( A @ C ) ) )
          @ ( setof
            @ ^ [C: nat] :
                ~ ( A @ C ) ) )
       != ( esti @ B
          @ ( setof
            @ ^ [C: nat] : $false ) ) ) ),
    inference(paramod_ordered,[status(thm)],[580,35]) ).

thf(1050,plain,
    ! [B: nat,A: nat > $o] :
      ( ( A @ n_1 )
      | ( ( esti
          @ ( sk1
            @ ( setof
              @ ^ [C: nat] :
                  ~ ( A @ C ) ) )
          @ ( setof
            @ ^ [C: nat] :
                ~ ( A @ C ) ) )
       != ( esti @ B
          @ ( setof
            @ ^ [C: nat] : $false ) ) ) ),
    inference(simp,[status(thm)],[1049]) ).

thf(1125,plain,
    ! [B: nat,A: nat > $o] :
      ( ( A @ n_1 )
      | ( ( sk1
          @ ( setof
            @ ^ [C: nat] :
                ~ ( A @ C ) ) )
       != B )
      | ( ( setof
          @ ^ [C: nat] :
              ~ ( A @ C ) )
       != ( setof
          @ ^ [C: nat] : $false ) ) ),
    inference(simp,[status(thm)],[1050]) ).

thf(1173,plain,
    ! [A: nat > $o] :
      ( ( A @ n_1 )
      | ( ( setof
          @ ^ [B: nat] :
              ~ ( A @ B ) )
       != ( setof
          @ ^ [B: nat] : $false ) ) ),
    inference(simp,[status(thm)],[1125]) ).

thf(1582,plain,
    ! [A: nat > $o] :
      ( ( A @ n_1 )
      | ( ( ^ [B: nat] :
              ~ ( A @ B ) )
       != ( ^ [B: nat] : $false ) ) ),
    inference(simp,[status(thm)],[1173]) ).

thf(1691,plain,
    ! [A: nat > $o] :
      ( ~ ( A @ ( sk3 @ A ) )
      | ( A @ n_1 ) ),
    inference(func_ext,[status(esa)],[1582]) ).

thf(1787,plain,
    ! [A: nat > $o] :
      ( ~ ( A @ ( sk3 @ A ) )
      | ( A @ n_1 ) ),
    inference(cnf,[status(esa)],[1691]) ).

thf(2192,plain,
    ! [A: nat > $o] :
      ( ~ ~ ( A
            @ ( sk3
              @ ^ [B: nat] :
                  ~ ( A @ B ) ) )
      | ~ ( A @ n_1 ) ),
    inference(prim_subst,[status(thm)],[1787:[bind(A,$thf( ^ [C: nat] : ~ ( B @ C ) ))]]) ).

thf(2236,plain,
    ! [A: nat > $o] :
      ( ( A
        @ ( sk3
          @ ^ [B: nat] :
              ~ ( A @ B ) ) )
      | ~ ( A @ n_1 ) ),
    inference(cnf,[status(esa)],[2192]) ).

thf(2237,plain,
    ! [A: nat > $o] :
      ( ( A
        @ ( sk3
          @ ^ [B: nat] :
              ~ ( A @ B ) ) )
      | ~ ( A @ n_1 ) ),
    inference(simp,[status(thm)],[2236]) ).

thf(86,plain,
    ! [D: nat,C: nat > $o,B: nat,A: set] :
      ( ~ ( esti @ n_1 @ A )
      | ( esti @ B @ A )
      | ~ $true
      | ( esti @ D @ ( setof @ C ) )
      | ( ( esti @ ( sk1 @ A ) @ A )
       != ( C @ D ) ) ),
    inference(paramod_ordered,[status(thm)],[20,23]) ).

thf(87,plain,
    ! [D: nat,C: nat > $o,B: nat,A: set] :
      ( ~ ( esti @ n_1 @ A )
      | ( esti @ B @ A )
      | ( esti @ D @ ( setof @ C ) )
      | ( ( esti @ ( sk1 @ A ) @ A )
       != ( C @ D ) ) ),
    inference(simp,[status(thm)],[86]) ).

thf(112,plain,
    ! [C: set,B: nat > set,A: nat] :
      ( ~ ( esti @ n_1 @ ( B @ ( sk1 @ C ) ) )
      | ( esti @ A @ ( B @ ( sk1 @ C ) ) )
      | ( esti @ ( sk1 @ C )
        @ ( setof
          @ ^ [D: nat] : ( esti @ D @ ( B @ D ) ) ) )
      | ( ( B @ ( sk1 @ C ) )
       != C ) ),
    inference(pre_uni,[status(thm)],[87:[bind(A,$thf( F @ ( sk1 @ H ) )),bind(B,$thf( B )),bind(C,$thf( ^ [F: nat] : ( esti @ F @ ( F @ F ) ) )),bind(D,$thf( sk1 @ H ))]]) ).

thf(114,plain,
    ! [C: set,B: nat > set,A: nat] :
      ( ( esti @ ( sk1 @ C )
        @ ( setof
          @ ^ [D: nat] : ( esti @ D @ ( B @ D ) ) ) )
      | ( esti @ A @ ( B @ ( sk1 @ C ) ) )
      | ~ ( esti @ n_1 @ ( B @ ( sk1 @ C ) ) )
      | ( ( B @ ( sk1 @ C ) )
       != C ) ),
    inference(pre_uni,[status(thm)],[112:[]]) ).

thf(116,plain,
    ! [C: set,B: nat > set,A: nat] :
      ( ( esti @ ( sk1 @ C )
        @ ( setof
          @ ^ [D: nat] : ( esti @ D @ ( B @ D ) ) ) )
      | ( esti @ A @ ( B @ ( sk1 @ C ) ) )
      | ~ ( esti @ n_1 @ ( B @ ( sk1 @ C ) ) )
      | ( ( B @ ( sk1 @ C ) )
       != C ) ),
    inference(simp,[status(thm)],[114]) ).

thf(55,plain,
    ! [D: nat,C: nat > $o,B: nat,A: set] :
      ( ~ ( esti @ n_1 @ A )
      | ( esti @ B @ A )
      | ~ $true
      | ( C @ D )
      | ( ( esti @ ( sk1 @ A ) @ A )
       != ( esti @ D @ ( setof @ C ) ) ) ),
    inference(paramod_ordered,[status(thm)],[20,17]) ).

thf(56,plain,
    ! [D: nat,C: nat > $o,B: nat,A: set] :
      ( ~ ( esti @ n_1 @ A )
      | ( esti @ B @ A )
      | ( C @ D )
      | ( ( esti @ ( sk1 @ A ) @ A )
       != ( esti @ D @ ( setof @ C ) ) ) ),
    inference(simp,[status(thm)],[55]) ).

thf(57,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ( esti @ n_1 @ ( setof @ B ) )
      | ( esti @ A @ ( setof @ B ) )
      | ( B @ ( sk1 @ ( setof @ B ) ) ) ),
    inference(pattern_uni,[status(thm)],[56:[bind(A,$thf( setof @ F )),bind(B,$thf( B )),bind(C,$thf( F )),bind(D,$thf( sk1 @ ( setof @ F ) ))]]) ).

thf(78,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ( esti @ n_1 @ ( setof @ B ) )
      | ( esti @ A @ ( setof @ B ) )
      | ( B @ ( sk1 @ ( setof @ B ) ) ) ),
    inference(simp,[status(thm)],[57]) ).

thf(2300,plain,
    ! [D: nat > $o,C: nat,B: nat,A: nat > $o] :
      ( ~ ( A @ B )
      | ~ $true
      | ( esti @ C @ ( setof @ D ) )
      | ( D @ ( sk1 @ ( setof @ D ) ) )
      | ( ( esti @ B @ ( setof @ A ) )
       != ( esti @ n_1 @ ( setof @ D ) ) ) ),
    inference(paramod_ordered,[status(thm)],[23,78]) ).

thf(2301,plain,
    ! [D: nat > $o,C: nat,B: nat,A: nat > $o] :
      ( ~ ( A @ B )
      | ( esti @ C @ ( setof @ D ) )
      | ( D @ ( sk1 @ ( setof @ D ) ) )
      | ( ( esti @ B @ ( setof @ A ) )
       != ( esti @ n_1 @ ( setof @ D ) ) ) ),
    inference(simp,[status(thm)],[2300]) ).

thf(2302,plain,
    ! [B: nat,A: nat > $o] :
      ( ~ ( A @ n_1 )
      | ( esti @ B @ ( setof @ A ) )
      | ( A @ ( sk1 @ ( setof @ A ) ) ) ),
    inference(pattern_uni,[status(thm)],[2301:[bind(A,$thf( A )),bind(B,$thf( n_1 )),bind(C,$thf( C )),bind(D,$thf( A ))]]) ).

thf(2398,plain,
    ! [A: nat] :
      ( ( n_1 != n_1 )
      | ( esti @ A @ ( setof @ ( (=) @ nat @ n_1 ) ) )
      | ( n_1
        = ( sk1 @ ( setof @ ( (=) @ nat @ n_1 ) ) ) ) ),
    inference(replace_leibeq,[status(thm)],[2302:[bind(A,$thf( (=) @ nat @ n_1 ))]]) ).

thf(2399,plain,
    ! [A: nat] :
      ( ( n_1 != n_1 )
      | ( ( sk1 @ ( setof @ ( (=) @ nat @ n_1 ) ) )
        = n_1 )
      | ( esti @ A @ ( setof @ ( (=) @ nat @ n_1 ) ) ) ),
    inference(lifteq,[status(thm)],[2398]) ).

thf(2457,plain,
    ! [A: nat] :
      ( ( esti @ A @ ( setof @ ( (=) @ nat @ n_1 ) ) )
      | ( ( sk1 @ ( setof @ ( (=) @ nat @ n_1 ) ) )
        = n_1 ) ),
    inference(pattern_uni,[status(thm)],[2399:[]]) ).

thf(2489,plain,
    ! [A: nat] :
      ( ( esti @ A @ ( setof @ ( (=) @ nat @ n_1 ) ) )
      | ( ( sk1 @ ( setof @ ( (=) @ nat @ n_1 ) ) )
        = n_1 ) ),
    inference(simp,[status(thm)],[2457]) ).

thf(4183,plain,
    ! [C: nat,B: nat > $o,A: nat] :
      ( ( ( sk1 @ ( setof @ ( (=) @ nat @ n_1 ) ) )
        = n_1 )
      | ~ $true
      | ( B @ C )
      | ( ( esti @ A @ ( setof @ ( (=) @ nat @ n_1 ) ) )
       != ( esti @ C @ ( setof @ B ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2489,17]) ).

thf(4184,plain,
    ! [C: nat,B: nat > $o,A: nat] :
      ( ( ( sk1 @ ( setof @ ( (=) @ nat @ n_1 ) ) )
        = n_1 )
      | ( B @ C )
      | ( ( esti @ A @ ( setof @ ( (=) @ nat @ n_1 ) ) )
       != ( esti @ C @ ( setof @ B ) ) ) ),
    inference(simp,[status(thm)],[4183]) ).

thf(4185,plain,
    ! [A: nat] :
      ( ( ( sk1 @ ( setof @ ( (=) @ nat @ n_1 ) ) )
        = n_1 )
      | ( n_1 = A ) ),
    inference(pattern_uni,[status(thm)],[4184:[bind(A,$thf( A )),bind(B,$thf( (=) @ nat @ n_1 )),bind(C,$thf( A ))]]) ).

thf(4247,plain,
    ! [A: nat] :
      ( ( n_1 = A )
      | ( ( sk1 @ ( setof @ ( (=) @ nat @ n_1 ) ) )
        = n_1 ) ),
    inference(lifteq,[status(thm)],[4185]) ).

thf(4457,plain,
    ! [A: nat] :
      ( ( n_1 = A )
      | ( ( sk1 @ ( setof @ ( (=) @ nat @ n_1 ) ) )
       != A )
      | ( n_1 != n_1 ) ),
    inference(eqfactor_ordered,[status(thm)],[4247]) ).

thf(4476,plain,
    ( ( sk1 @ ( setof @ ( (=) @ nat @ n_1 ) ) )
    = n_1 ),
    inference(pattern_uni,[status(thm)],[4457:[bind(A,$thf( sk1 @ ( setof @ ( (=) @ nat @ n_1 ) ) ))]]) ).

thf(25,plain,
    ! [D: nat,C: nat > $o,B: nat,A: nat > $o] :
      ( ~ ( esti @ B @ ( setof @ A ) )
      | ~ $true
      | ( C @ D )
      | ( ( A @ B )
       != ( esti @ D @ ( setof @ C ) ) ) ),
    inference(paramod_ordered,[status(thm)],[17,17]) ).

thf(26,plain,
    ! [D: nat,C: nat > $o,B: nat,A: nat > $o] :
      ( ~ ( esti @ B @ ( setof @ A ) )
      | ( C @ D )
      | ( ( A @ B )
       != ( esti @ D @ ( setof @ C ) ) ) ),
    inference(simp,[status(thm)],[25]) ).

thf(34,plain,
    ! [C: nat > nat > $o,B: nat > nat,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [D: nat] : ( esti @ ( B @ D ) @ ( setof @ ( C @ D ) ) ) ) )
      | ( C @ A @ ( B @ A ) ) ),
    inference(pre_uni,[status(thm)],[26:[bind(A,$thf( ^ [G: nat] : ( esti @ ( E @ G ) @ ( setof @ ( G @ G ) ) ) )),bind(B,$thf( B )),bind(C,$thf( G @ B )),bind(D,$thf( E @ B ))]]) ).

thf(36,plain,
    ! [C: nat > nat > $o,B: nat > nat,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [D: nat] : ( esti @ ( B @ D ) @ ( setof @ ( C @ D ) ) ) ) )
      | ( C @ A @ ( B @ A ) ) ),
    inference(simp,[status(thm)],[34]) ).

thf(1632,plain,
    ! [A: nat > $o] :
      ( ~ ( A @ n_1 )
      | ( ( setof
          @ ^ [B: nat] :
              ~ ~ ( A @ B ) )
       != ( setof
          @ ^ [B: nat] : $false ) ) ),
    inference(prim_subst,[status(thm)],[1173:[bind(A,$thf( ^ [C: nat] : ~ ( B @ C ) ))]]) ).

thf(1664,plain,
    ! [A: nat > $o] :
      ( ~ ( A @ n_1 )
      | ( ( setof
          @ ^ [B: nat] :
              ~ ~ ( A @ B ) )
       != ( setof
          @ ^ [B: nat] : $false ) ) ),
    inference(cnf,[status(esa)],[1632]) ).

thf(1665,plain,
    ! [A: nat > $o] :
      ( ~ ( A @ n_1 )
      | ( ( setof @ A )
       != ( setof
          @ ^ [B: nat] : $false ) ) ),
    inference(simp,[status(thm)],[1664]) ).

thf(643,plain,
    ! [D: nat,C: nat > nat > $o,B: nat > nat,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [E: nat] : ( esti @ ( B @ E ) @ ( setof @ ( C @ E ) ) ) ) )
      | ~ $true
      | ( ( C @ A @ ( B @ A ) )
       != ( esti @ D
          @ ( setof
            @ ^ [E: nat] : $false ) ) ) ),
    inference(paramod_ordered,[status(thm)],[36,35]) ).

thf(644,plain,
    ! [D: nat,C: nat > nat > $o,B: nat > nat,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [E: nat] : ( esti @ ( B @ E ) @ ( setof @ ( C @ E ) ) ) ) )
      | ( ( C @ A @ ( B @ A ) )
       != ( esti @ D
          @ ( setof
            @ ^ [E: nat] : $false ) ) ) ),
    inference(simp,[status(thm)],[643]) ).

thf(693,plain,
    ! [C: nat > nat > nat,B: nat > nat,A: nat] :
      ~ ( esti @ A
        @ ( setof
          @ ^ [D: nat] :
              ( esti @ ( B @ D )
              @ ( setof
                @ ^ [E: nat] :
                    ( esti @ ( C @ D @ E )
                    @ ( setof
                      @ ^ [F: nat] : $false ) ) ) ) ) ),
    inference(pre_uni,[status(thm)],[644:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( ^ [F: nat] : ^ [G: nat] : ( esti @ ( E @ F @ G ) @ ( setof @ ^ [H: nat] : $false ) ) )),bind(D,$thf( E @ A @ ( B @ A ) ))]]) ).

thf(750,plain,
    ! [C: nat > nat > nat,B: nat > nat,A: nat] :
      ~ ( esti @ A
        @ ( setof
          @ ^ [D: nat] :
              ( esti @ ( B @ D )
              @ ( setof
                @ ^ [E: nat] :
                    ( esti @ ( C @ D @ E )
                    @ ( setof
                      @ ^ [F: nat] : $false ) ) ) ) ) ),
    inference(simp,[status(thm)],[693]) ).

thf(760,plain,
    ! [B: nat > nat,A: nat] :
      ~ ( esti @ A
        @ ( setof
          @ ^ [C: nat] :
              ( esti @ ( B @ C )
              @ ( setof
                @ ^ [D: nat] : $false ) ) ) ),
    inference(rewrite,[status(thm)],[750,35]) ).

thf(111,plain,
    ! [D: nat > set,C: nat > set,B: nat,A: nat] :
      ( ~ ( esti @ n_1 @ ( C @ B ) )
      | ( esti @ A @ ( C @ B ) )
      | ( esti @ B
        @ ( setof
          @ ^ [E: nat] : ( esti @ ( sk1 @ ( D @ E ) ) @ ( C @ E ) ) ) )
      | ( ( C @ B )
       != ( D @ B ) ) ),
    inference(pre_uni,[status(thm)],[87:[bind(A,$thf( F @ D )),bind(B,$thf( B )),bind(C,$thf( ^ [G: nat] : ( esti @ ( sk1 @ ( G @ G ) ) @ ( F @ G ) ) )),bind(D,$thf( D ))]]) ).

thf(113,plain,
    ! [D: nat > set,C: nat > set,B: nat,A: nat] :
      ( ( esti @ B
        @ ( setof
          @ ^ [E: nat] : ( esti @ ( sk1 @ ( D @ E ) ) @ ( C @ E ) ) ) )
      | ( esti @ A @ ( C @ B ) )
      | ~ ( esti @ n_1 @ ( C @ B ) )
      | ( ( C @ B )
       != ( D @ B ) ) ),
    inference(pre_uni,[status(thm)],[111:[]]) ).

thf(115,plain,
    ! [D: nat > set,C: nat > set,B: nat,A: nat] :
      ( ( esti @ B
        @ ( setof
          @ ^ [E: nat] : ( esti @ ( sk1 @ ( D @ E ) ) @ ( C @ E ) ) ) )
      | ( esti @ A @ ( C @ B ) )
      | ~ ( esti @ n_1 @ ( C @ B ) )
      | ( ( C @ B )
       != ( D @ B ) ) ),
    inference(simp,[status(thm)],[113]) ).

thf(104,plain,
    ! [A: nat] :
      ( ~ $true
      | ( esti @ A
        @ ( setof
          @ ^ [B: nat] : $true ) ) ),
    inference(prim_subst,[status(thm)],[23:[bind(A,$thf( ^ [C: nat] : $true ))]]) ).

thf(126,plain,
    ! [A: nat] :
      ( esti @ A
      @ ( setof
        @ ^ [B: nat] : $true ) ),
    inference(simp,[status(thm)],[104]) ).

thf(249,plain,
    ! [C: nat > $o,B: nat,A: nat] :
      ( ~ $true
      | ~ ( C @ B )
      | ( ( esti @ A
          @ ( setof
            @ ^ [D: nat] : $true ) )
       != ( esti @ B
          @ ( setof
            @ ^ [D: nat] :
                ~ ( C @ D ) ) ) ) ),
    inference(paramod_ordered,[status(thm)],[126,39]) ).

thf(250,plain,
    ! [C: nat > $o,B: nat,A: nat] :
      ( ~ ( C @ B )
      | ( ( esti @ A
          @ ( setof
            @ ^ [D: nat] : $true ) )
       != ( esti @ B
          @ ( setof
            @ ^ [D: nat] :
                ~ ( C @ D ) ) ) ) ),
    inference(simp,[status(thm)],[249]) ).

thf(265,plain,
    ! [C: nat > $o,B: nat,A: nat] :
      ( ~ ( C @ B )
      | ( A != B )
      | ( ( setof
          @ ^ [D: nat] :
              ~ ( C @ D ) )
       != ( setof
          @ ^ [D: nat] : $true ) ) ),
    inference(simp,[status(thm)],[250]) ).

thf(285,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ( B @ A )
      | ( ( setof
          @ ^ [C: nat] :
              ~ ( B @ C ) )
       != ( setof
          @ ^ [C: nat] : $true ) ) ),
    inference(simp,[status(thm)],[265]) ).

thf(429,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ~ ( B @ A )
      | ( ( setof
          @ ^ [C: nat] :
              ~ ~ ( B @ C ) )
       != ( setof
          @ ^ [C: nat] : $true ) ) ),
    inference(prim_subst,[status(thm)],[285:[bind(A,$thf( A )),bind(B,$thf( ^ [D: nat] : ~ ( C @ D ) ))]]) ).

thf(448,plain,
    ! [B: nat > $o,A: nat] :
      ( ( B @ A )
      | ( ( setof
          @ ^ [C: nat] :
              ~ ~ ( B @ C ) )
       != ( setof
          @ ^ [C: nat] : $true ) ) ),
    inference(cnf,[status(esa)],[429]) ).

thf(449,plain,
    ! [B: nat > $o,A: nat] :
      ( ( B @ A )
      | ( ( setof @ B )
       != ( setof
          @ ^ [C: nat] : $true ) ) ),
    inference(simp,[status(thm)],[448]) ).

thf(101,plain,
    ! [C: nat > set,B: nat > nat,A: nat] :
      ( ~ ( esti @ ( B @ A ) @ ( C @ A ) )
      | ( esti @ A
        @ ( setof
          @ ^ [D: nat] : ( esti @ ( B @ D ) @ ( C @ D ) ) ) ) ),
    inference(prim_subst,[status(thm)],[23:[bind(A,$thf( ^ [E: nat] : ( esti @ ( C @ E ) @ ( D @ E ) ) ))]]) ).

thf(120,plain,
    ! [C: nat > set,B: nat > nat,A: nat] :
      ( ~ ( esti @ ( B @ A ) @ ( C @ A ) )
      | ( esti @ A
        @ ( setof
          @ ^ [D: nat] : ( esti @ ( B @ D ) @ ( C @ D ) ) ) ) ),
    inference(simp,[status(thm)],[101]) ).

thf(7,axiom,
    ! [A: $o] :
      ( ~ ~ A
     => A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',et) ).

thf(24,plain,
    $true,
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[7]) ).

thf(28,plain,
    ! [C: nat > set,B: nat > nat,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [D: nat] : ( esti @ ( B @ D ) @ ( C @ D ) ) ) )
      | ( esti @ ( B @ A ) @ ( C @ A ) ) ),
    inference(prim_subst,[status(thm)],[17:[bind(A,$thf( ^ [E: nat] : ( esti @ ( C @ E ) @ ( D @ E ) ) ))]]) ).

thf(37,plain,
    ! [C: nat > set,B: nat > nat,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [D: nat] : ( esti @ ( B @ D ) @ ( C @ D ) ) ) )
      | ( esti @ ( B @ A ) @ ( C @ A ) ) ),
    inference(simp,[status(thm)],[28]) ).

thf(4971,plain,
    ! [A: nat > $o] :
      ( ~ ( A @ n_1 )
      | ( ( ^ [B: nat] :
              ~ ( A @ B ) )
       != ( ^ [B: nat] : $true ) )
      | ( ( sk1 @ ( setof @ ( (=) @ nat @ n_1 ) ) )
       != ( sk1
          @ ( setof
            @ ^ [B: nat] : $true ) ) ) ),
    inference(paramod_ordered,[status(thm)],[4476,3116]) ).

thf(4998,plain,
    ! [A: nat > $o] :
      ( ~ ( A @ n_1 )
      | ( ( ^ [B: nat] :
              ~ ( A @ B ) )
       != ( ^ [B: nat] : $true ) )
      | ( ( setof @ ( (=) @ nat @ n_1 ) )
       != ( setof
          @ ^ [B: nat] : $true ) ) ),
    inference(simp,[status(thm)],[4971]) ).

thf(5020,plain,
    ! [A: nat > $o] :
      ( ~ ( A @ n_1 )
      | ( ( ^ [B: nat] :
              ~ ( A @ B ) )
       != ( ^ [B: nat] : $true ) )
      | ( ( (=) @ nat @ n_1 )
       != ( ^ [B: nat] : $true ) ) ),
    inference(simp,[status(thm)],[4998]) ).

thf(27,plain,
    ! [B: nat,A: nat > $o] :
      ( ~ ( esti @ B @ ( setof @ A ) )
      | ( ( A @ B )
       != ( ~ ( esti @ B @ ( setof @ A ) ) ) )
      | ~ $true ),
    inference(eqfactor_ordered,[status(thm)],[17]) ).

thf(33,plain,
    ! [B: nat,A: nat > $o] :
      ( ~ ( esti @ B @ ( setof @ A ) )
      | ( ( A @ B )
       != ( ~ ( esti @ B @ ( setof @ A ) ) ) ) ),
    inference(simp,[status(thm)],[27]) ).

thf(21,plain,
    ! [B: nat,A: set] :
      ( ~ ( esti @ n_1 @ A )
      | ~ ( esti @ ( suc @ ( sk1 @ A ) ) @ A )
      | ( esti @ B @ A ) ),
    inference(cnfConj,[status(thm)],[19]) ).

thf(93,plain,
    ! [D: nat,C: nat > $o,B: nat,A: nat > $o] :
      ( ~ ( esti @ B @ ( setof @ A ) )
      | ~ $true
      | ( esti @ D @ ( setof @ C ) )
      | ( ( A @ B )
       != ( C @ D ) ) ),
    inference(paramod_ordered,[status(thm)],[17,23]) ).

thf(94,plain,
    ! [D: nat,C: nat > $o,B: nat,A: nat > $o] :
      ( ~ ( esti @ B @ ( setof @ A ) )
      | ( esti @ D @ ( setof @ C ) )
      | ( ( A @ B )
       != ( C @ D ) ) ),
    inference(simp,[status(thm)],[93]) ).

thf(108,plain,
    ! [D: nat,C: nat > $o,B: nat,A: nat > $o] :
      ( ~ ( esti @ B @ ( setof @ A ) )
      | ( esti @ D @ ( setof @ C ) )
      | ( ( A @ B )
       != ( C @ D ) ) ),
    inference(pre_uni,[status(thm)],[94:[]]) ).

thf(109,plain,
    ! [D: nat,C: nat > $o,B: nat,A: nat > $o] :
      ( ( esti @ D @ ( setof @ C ) )
      | ~ ( esti @ B @ ( setof @ A ) )
      | ( ( A @ B )
       != ( C @ D ) ) ),
    inference(pre_uni,[status(thm)],[108:[]]) ).

thf(61,plain,
    ! [D: nat,C: set,B: nat,A: nat > $o] :
      ( ~ ( esti @ B @ ( setof @ A ) )
      | ~ $true
      | ( esti @ ( sk1 @ C ) @ C )
      | ( esti @ D @ C )
      | ( ( A @ B )
       != ( esti @ n_1 @ C ) ) ),
    inference(paramod_ordered,[status(thm)],[17,20]) ).

thf(62,plain,
    ! [D: nat,C: set,B: nat,A: nat > $o] :
      ( ~ ( esti @ B @ ( setof @ A ) )
      | ( esti @ ( sk1 @ C ) @ C )
      | ( esti @ D @ C )
      | ( ( A @ B )
       != ( esti @ n_1 @ C ) ) ),
    inference(simp,[status(thm)],[61]) ).

thf(72,plain,
    ! [C: nat > set,B: nat,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [D: nat] : ( esti @ n_1 @ ( C @ D ) ) ) )
      | ( esti @ ( sk1 @ ( C @ A ) ) @ ( C @ A ) )
      | ( esti @ B @ ( C @ A ) ) ),
    inference(pre_uni,[status(thm)],[62:[bind(A,$thf( ^ [F: nat] : ( esti @ n_1 @ ( F @ F ) ) )),bind(B,$thf( B )),bind(C,$thf( F @ B )),bind(D,$thf( D ))]]) ).

thf(77,plain,
    ! [C: nat > set,B: nat,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [D: nat] : ( esti @ n_1 @ ( C @ D ) ) ) )
      | ( esti @ ( sk1 @ ( C @ A ) ) @ ( C @ A ) )
      | ( esti @ B @ ( C @ A ) ) ),
    inference(simp,[status(thm)],[72]) ).

thf(3,axiom,
    x != n_1,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',n) ).

thf(13,plain,
    x != n_1,
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).

thf(31,plain,
    ! [C: nat > $o,B: nat > $o,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [D: nat] :
                ( ( B @ D )
                | ( C @ D ) ) ) )
      | ( B @ A )
      | ( C @ A ) ),
    inference(prim_subst,[status(thm)],[17:[bind(A,$thf( ^ [E: nat] : ( ( C @ E ) | ( D @ E ) ) ))]]) ).

thf(40,plain,
    ! [C: nat > $o,B: nat > $o,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [D: nat] :
                ( ( B @ D )
                | ( C @ D ) ) ) )
      | ( B @ A )
      | ( C @ A ) ),
    inference(cnf,[status(esa)],[31]) ).

thf(41,plain,
    ! [C: nat > $o,B: nat > $o,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [D: nat] :
                ( ( B @ D )
                | ( C @ D ) ) ) )
      | ( B @ A )
      | ( C @ A ) ),
    inference(simp,[status(thm)],[40]) ).

thf(1,conjecture,
    ~ ! [A: nat] :
        ( x
       != ( suc @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',satz3) ).

thf(2,negated_conjecture,
    ~ ~ ! [A: nat] :
          ( x
         != ( suc @ A ) ),
    inference(neg_conjecture,[status(cth)],[1]) ).

thf(8,plain,
    ~ ~ ! [A: nat] :
          ( x
         != ( suc @ A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

thf(9,plain,
    ! [A: nat] :
      ( x
     != ( suc @ A ) ),
    inference(polarity_switch,[status(thm)],[8]) ).

thf(10,plain,
    ~ ? [A: nat] :
        ( x
        = ( suc @ A ) ),
    inference(miniscope,[status(thm)],[9]) ).

thf(11,plain,
    ! [A: nat] :
      ( x
     != ( suc @ A ) ),
    inference(cnf,[status(esa)],[10]) ).

thf(12,plain,
    ! [A: nat] :
      ( ( suc @ A )
     != x ),
    inference(lifteq,[status(thm)],[11]) ).

thf(202,plain,
    ! [B: nat,A: nat] :
      ( ~ $true
      | ( ( esti @ A
          @ ( setof
            @ ^ [C: nat] : $true ) )
       != ( esti @ B
          @ ( setof
            @ ^ [C: nat] : $false ) ) ) ),
    inference(paramod_ordered,[status(thm)],[126,35]) ).

thf(203,plain,
    ! [B: nat,A: nat] :
      ( ( esti @ A
        @ ( setof
          @ ^ [C: nat] : $true ) )
     != ( esti @ B
        @ ( setof
          @ ^ [C: nat] : $false ) ) ),
    inference(simp,[status(thm)],[202]) ).

thf(208,plain,
    ! [B: nat,A: nat] :
      ( ( A != B )
      | ( ( setof
          @ ^ [C: nat] : $false )
       != ( setof
          @ ^ [C: nat] : $true ) ) ),
    inference(simp,[status(thm)],[203]) ).

thf(209,plain,
    ( ( setof
      @ ^ [A: nat] : $false )
   != ( setof
      @ ^ [A: nat] : $true ) ),
    inference(simp,[status(thm)],[208]) ).

thf(2886,plain,
    ! [A: nat > $o] :
      ( ~ ( A @ n_1 )
      | ( ( setof
          @ ^ [B: nat] : $true )
       != ( setof
          @ ^ [B: nat] : $true ) )
      | ( A
        @ ( sk3
          @ ^ [B: nat] :
              ~ ( A @ B ) ) ) ),
    inference(paramod_ordered,[status(thm)],[2237,209]) ).

thf(2887,plain,
    ! [A: nat > $o] :
      ( ~ ( A @ n_1 )
      | ( A
        @ ( sk3
          @ ^ [B: nat] :
              ~ ( A @ B ) ) ) ),
    inference(simp,[status(thm)],[2886]) ).

thf(2963,plain,
    ( ( n_1 != n_1 )
    | ( n_1
      = ( sk3
        @ ^ [A: nat] : ( n_1 != A ) ) ) ),
    inference(replace_leibeq,[status(thm)],[2887:[bind(A,$thf( (=) @ nat @ n_1 ))]]) ).

thf(2965,plain,
    ( ( n_1 != n_1 )
    | ( ( sk3
        @ ^ [A: nat] : ( n_1 != A ) )
      = n_1 ) ),
    inference(lifteq,[status(thm)],[2963]) ).

thf(3002,plain,
    ( ( sk3
      @ ^ [A: nat] : ( n_1 != A ) )
    = n_1 ),
    inference(pattern_uni,[status(thm)],[2965:[]]) ).

thf(1392,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [C: nat] :
                ~ ( B @ C ) ) )
      | ~ $true
      | ( ( esti
          @ ( sk1
            @ ( setof
              @ ^ [C: nat] : $true ) )
          @ ( setof
            @ ^ [C: nat] : $true ) )
       != ( B @ A ) ) ),
    inference(paramod_ordered,[status(thm)],[1370,39]) ).

thf(1393,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ( esti @ A
          @ ( setof
            @ ^ [C: nat] :
                ~ ( B @ C ) ) )
      | ( ( esti
          @ ( sk1
            @ ( setof
              @ ^ [C: nat] : $true ) )
          @ ( setof
            @ ^ [C: nat] : $true ) )
       != ( B @ A ) ) ),
    inference(simp,[status(thm)],[1392]) ).

thf(1437,plain,
    ~ ( esti
      @ ( sk1
        @ ( setof
          @ ^ [A: nat] : $true ) )
      @ ( setof
        @ ^ [A: nat] :
            ~ ( esti @ A
              @ ( setof
                @ ^ [B: nat] : $true ) ) ) ),
    inference(pre_uni,[status(thm)],[1393:[bind(A,$thf( sk1 @ ( setof @ ^ [C: nat] : $true ) )),bind(B,$thf( ^ [C: nat] : ( esti @ C @ ( setof @ ^ [D: nat] : $true ) ) ))]]) ).

thf(1476,plain,
    ~ ( esti
      @ ( sk1
        @ ( setof
          @ ^ [A: nat] : $true ) )
      @ ( setof
        @ ^ [A: nat] : ~ $true ) ),
    inference(rewrite,[status(thm)],[1437,126]) ).

thf(1477,plain,
    ~ ( esti
      @ ( sk1
        @ ( setof
          @ ^ [A: nat] : $true ) )
      @ ( setof
        @ ^ [A: nat] : $false ) ),
    inference(simp,[status(thm)],[1476]) ).

thf(2955,plain,
    ! [A: nat > $o] :
      ( ~ ( A
          @ ( sk3
            @ ^ [B: nat] :
                ~ ~ ( A @ B ) ) )
      | ~ ~ ( A @ n_1 ) ),
    inference(prim_subst,[status(thm)],[2237:[bind(A,$thf( ^ [C: nat] : ~ ( B @ C ) ))]]) ).

thf(3047,plain,
    ! [A: nat > $o] :
      ( ~ ( A
          @ ( sk3
            @ ^ [B: nat] :
                ~ ~ ( A @ B ) ) )
      | ( A @ n_1 ) ),
    inference(cnf,[status(esa)],[2955]) ).

thf(3048,plain,
    ! [A: nat > $o] :
      ( ~ ( A @ ( sk3 @ A ) )
      | ( A @ n_1 ) ),
    inference(simp,[status(thm)],[3047]) ).

thf(83,plain,
    ! [D: nat,C: set,B: nat,A: nat > $o] :
      ( ~ ( A @ B )
      | ~ $true
      | ( esti @ ( sk1 @ C ) @ C )
      | ( esti @ D @ C )
      | ( ( esti @ B @ ( setof @ A ) )
       != ( esti @ n_1 @ C ) ) ),
    inference(paramod_ordered,[status(thm)],[23,20]) ).

thf(84,plain,
    ! [D: nat,C: set,B: nat,A: nat > $o] :
      ( ~ ( A @ B )
      | ( esti @ ( sk1 @ C ) @ C )
      | ( esti @ D @ C )
      | ( ( esti @ B @ ( setof @ A ) )
       != ( esti @ n_1 @ C ) ) ),
    inference(simp,[status(thm)],[83]) ).

thf(85,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ( B @ n_1 )
      | ( esti @ ( sk1 @ ( setof @ B ) ) @ ( setof @ B ) )
      | ( esti @ A @ ( setof @ B ) ) ),
    inference(pattern_uni,[status(thm)],[84:[bind(A,$thf( E )),bind(B,$thf( n_1 )),bind(C,$thf( setof @ E ))]]) ).

thf(119,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ( B @ n_1 )
      | ( esti @ ( sk1 @ ( setof @ B ) ) @ ( setof @ B ) )
      | ( esti @ A @ ( setof @ B ) ) ),
    inference(simp,[status(thm)],[85]) ).

thf(73,plain,
    ! [B: nat > set,A: nat] :
      ( ~ ( esti @ n_1
          @ ( setof
            @ ^ [C: nat] : ( esti @ C @ ( B @ C ) ) ) )
      | ( esti @ ( sk1 @ ( B @ n_1 ) ) @ ( B @ n_1 ) )
      | ( esti @ A @ ( B @ n_1 ) ) ),
    inference(pre_uni,[status(thm)],[62:[bind(A,$thf( ^ [F: nat] : ( esti @ F @ ( F @ F ) ) )),bind(B,$thf( n_1 )),bind(C,$thf( F @ n_1 )),bind(D,$thf( D ))]]) ).

thf(79,plain,
    ! [B: nat > set,A: nat] :
      ( ~ ( esti @ n_1
          @ ( setof
            @ ^ [C: nat] : ( esti @ C @ ( B @ C ) ) ) )
      | ( esti @ ( sk1 @ ( B @ n_1 ) ) @ ( B @ n_1 ) )
      | ( esti @ A @ ( B @ n_1 ) ) ),
    inference(simp,[status(thm)],[73]) ).

thf(415,plain,
    ! [B: nat > $o,A: nat] :
      ( ~ ( B @ A )
      | ( ( ^ [C: nat] :
              ~ ( B @ C ) )
       != ( ^ [C: nat] : $true ) ) ),
    inference(simp,[status(thm)],[285]) ).

thf(14,plain,
    x != n_1,
    inference(polarity_switch,[status(thm)],[13]) ).

thf(15,plain,
    n_1 != x,
    inference(lifteq,[status(thm)],[14]) ).

thf(7069,plain,
    $false,
    inference(e,[status(thm)],[1458,3116,2237,116,4476,17,39,16,23,36,1665,760,115,449,120,1173,24,37,5020,78,33,21,1370,1787,285,109,77,13,41,4998,22,118,12,3002,1477,35,209,3048,580,18,8,75,119,126,79,415,1582,15]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02  % Problem  : NUM637^1 : TPTP v9.3.1. Released v3.7.0.
% 0.00/0.07  % Command  : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% 0.10/0.21  % Computer : n002.cluster.edu
% 0.10/0.21  % Model    : x86_64 x86_64
% 0.10/0.21  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.21  % Memory   : 8046.5625MB
% 0.10/0.21  % OS       : Linux 6.8.0-71-generic
% 0.10/0.22  % CPULimit : 300
% 0.10/0.22  % WCLimit  : 300
% 0.10/0.22  % DateTime : Tue Sep 29 12:33:52 UTC 2026
% 0.10/0.22  % CPUTime  : 
% 0.10/0.22  Running java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% 1.01/0.84  % [INFO] 	 Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ... 
% 1.43/1.05  % [INFO] 	 Parsing done (207ms). 
% 1.43/1.06  % [INFO] 	 Running in sequential loop mode. 
% 1.97/1.47  % [INFO] 	 eprover registered as external prover. 
% 1.97/1.48  % [INFO] 	 Scanning for conjecture ... 
% 2.18/1.57  % [INFO] 	 Found a conjecture (or negated_conjecture) and 5 axioms. Running axiom selection ... 
% 2.35/1.61  % [INFO] 	 Axiom selection finished. Selected 5 axioms (removed 0 axioms). 
% 2.35/1.62  % [INFO] 	 Problem is higher-order (TPTP THF). 
% 2.35/1.63  % [INFO] 	 Type checking passed. 
% 2.35/1.63  % [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 ... 
% 34.48/8.44  % External prover 'e' found a proof!
% 34.48/8.44  % [INFO] 	 Killing All external provers ... 
% 34.48/8.44  % Time passed: 8076ms (effective reasoning time: 7371ms)
% 34.48/8.44  % Solved by 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)>
% 34.48/8.44  % Axioms used in derivation (5): n, estii, et, estie, ax5
% 34.48/8.44  % No. of inferences in proof: 151
% 34.48/8.44  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 8076 ms resp. 7371 ms w/o parsing
% 29.74/8.56  % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 29.74/8.57  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------