%------------------------------------------------------------------------------
% File : Z3---4.15.1
% Problem : GRP005-1 : TPTP v9.0.0. Released v1.0.0.
% Transfm : none
% Format : tptp
% Command : run_E %s %d THM
% Computer : n012.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8042.1875MB
% OS : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Sat Jun 21 05:06:49 AM UTC 2025
% Result : Unsatisfiable 0.20s 0.38s
% Output : Proof 0.20s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 15
% Syntax : Number of formulae : 32 ( 13 unt; 0 typ; 0 def)
% Number of atoms : 176 ( 0 equ)
% Maximal formula atoms : 15 ( 5 avg)
% Number of connectives : 260 ( 125 ~; 118 |; 0 &)
% ( 17 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 11 ( 5 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of FOOLs : 9 ( 9 fml; 0 var)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 7 ( 6 usr; 1 prp; 0-3 aty)
% Number of functors : 3 ( 3 usr; 2 con; 0-1 aty)
% Number of variables : 73 ( 66 !; 0 ?; 73 :)
% Comments :
%------------------------------------------------------------------------------
tff(product_type,type,
product: ( $i * $i * $i ) > $o ).
tff(identity_type,type,
identity: $i ).
tff(inverse_type,type,
inverse: $i > $i ).
tff(a_type,type,
a: $i ).
tff(an_element_type,type,
an_element: $i > $o ).
tff(1,plain,
( ~ an_element(identity)
<=> ~ an_element(identity) ),
inference(rewrite,[status(thm)],[]) ).
tff(2,axiom,
~ an_element(identity),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_identity_is_an_element) ).
tff(3,plain,
~ an_element(identity),
inference(modus_ponens,[status(thm)],[2,1]) ).
tff(4,plain,
^ [Z: $i,Y: $i,X: $i] :
refl(( ( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) )
<=> ( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) ) )),
inference(bind,[status(th)],[]) ).
tff(5,plain,
( ! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) )
<=> ! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) ) ),
inference(quant_intro,[status(thm)],[4]) ).
tff(6,plain,
( ! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) )
<=> ! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) ) ),
inference(rewrite,[status(thm)],[]) ).
tff(7,plain,
^ [Z: $i,Y: $i,X: $i] :
trans(monotonicity(rewrite(( ( ~ an_element(X)
| ~ an_element(Y)
| ~ product(X,inverse(Y),Z) )
<=> ( ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) ) )),
( ( ~ an_element(X)
| ~ an_element(Y)
| ~ product(X,inverse(Y),Z)
| an_element(Z) )
<=> ( ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X)
| an_element(Z) ) )),
rewrite(( ( ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X)
| an_element(Z) )
<=> ( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) ) )),
( ( ~ an_element(X)
| ~ an_element(Y)
| ~ product(X,inverse(Y),Z)
| an_element(Z) )
<=> ( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) ) )),
inference(bind,[status(th)],[]) ).
tff(8,plain,
( ! [Z: $i,Y: $i,X: $i] :
( ~ an_element(X)
| ~ an_element(Y)
| ~ product(X,inverse(Y),Z)
| an_element(Z) )
<=> ! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) ) ),
inference(quant_intro,[status(thm)],[7]) ).
tff(9,axiom,
! [Z: $i,Y: $i,X: $i] :
( ~ an_element(X)
| ~ an_element(Y)
| ~ product(X,inverse(Y),Z)
| an_element(Z) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',condition) ).
tff(10,plain,
! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) ),
inference(modus_ponens,[status(thm)],[9,8]) ).
tff(11,plain,
! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) ),
inference(modus_ponens,[status(thm)],[10,6]) ).
tff(12,plain,
! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) ),
inference(skolemize,[status(sab)],[11]) ).
tff(13,plain,
! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) ),
inference(modus_ponens,[status(thm)],[12,5]) ).
tff(14,plain,
( an_element(a)
<=> an_element(a) ),
inference(rewrite,[status(thm)],[]) ).
tff(15,axiom,
an_element(a),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',element_of_set) ).
tff(16,plain,
an_element(a),
inference(modus_ponens,[status(thm)],[15,14]) ).
tff(17,plain,
( ( ~ ! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) )
| an_element(identity)
| ~ product(a,inverse(a),identity)
| ~ an_element(a) )
<=> ( ~ ! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) )
| an_element(identity)
| ~ product(a,inverse(a),identity)
| ~ an_element(a) ) ),
inference(rewrite,[status(thm)],[]) ).
tff(18,plain,
( ( an_element(identity)
| ~ product(a,inverse(a),identity)
| ~ an_element(a)
| ~ an_element(a) )
<=> ( an_element(identity)
| ~ product(a,inverse(a),identity)
| ~ an_element(a) ) ),
inference(rewrite,[status(thm)],[]) ).
tff(19,plain,
( ( ~ ! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) )
| an_element(identity)
| ~ product(a,inverse(a),identity)
| ~ an_element(a)
| ~ an_element(a) )
<=> ( ~ ! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) )
| an_element(identity)
| ~ product(a,inverse(a),identity)
| ~ an_element(a) ) ),
inference(monotonicity,[status(thm)],[18]) ).
tff(20,plain,
( ( ~ ! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) )
| an_element(identity)
| ~ product(a,inverse(a),identity)
| ~ an_element(a)
| ~ an_element(a) )
<=> ( ~ ! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) )
| an_element(identity)
| ~ product(a,inverse(a),identity)
| ~ an_element(a) ) ),
inference(transitivity,[status(thm)],[19,17]) ).
tff(21,plain,
( ~ ! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) )
| an_element(identity)
| ~ product(a,inverse(a),identity)
| ~ an_element(a)
| ~ an_element(a) ),
inference(quant_inst,[status(thm)],[]) ).
tff(22,plain,
( ~ ! [Z: $i,Y: $i,X: $i] :
( an_element(Z)
| ~ product(X,inverse(Y),Z)
| ~ an_element(Y)
| ~ an_element(X) )
| an_element(identity)
| ~ product(a,inverse(a),identity)
| ~ an_element(a) ),
inference(modus_ponens,[status(thm)],[21,20]) ).
tff(23,plain,
~ product(a,inverse(a),identity),
inference(unit_resolution,[status(thm)],[22,16,13,3]) ).
tff(24,plain,
^ [X: $i] :
refl(( product(X,inverse(X),identity)
<=> product(X,inverse(X),identity) )),
inference(bind,[status(th)],[]) ).
tff(25,plain,
( ! [X: $i] : product(X,inverse(X),identity)
<=> ! [X: $i] : product(X,inverse(X),identity) ),
inference(quant_intro,[status(thm)],[24]) ).
tff(26,plain,
( ! [X: $i] : product(X,inverse(X),identity)
<=> ! [X: $i] : product(X,inverse(X),identity) ),
inference(rewrite,[status(thm)],[]) ).
tff(27,axiom,
! [X: $i] : product(X,inverse(X),identity),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',right_inverse) ).
tff(28,plain,
! [X: $i] : product(X,inverse(X),identity),
inference(modus_ponens,[status(thm)],[27,26]) ).
tff(29,plain,
! [X: $i] : product(X,inverse(X),identity),
inference(skolemize,[status(sab)],[28]) ).
tff(30,plain,
! [X: $i] : product(X,inverse(X),identity),
inference(modus_ponens,[status(thm)],[29,25]) ).
tff(31,plain,
( ~ ! [X: $i] : product(X,inverse(X),identity)
| product(a,inverse(a),identity) ),
inference(quant_inst,[status(thm)],[]) ).
tff(32,plain,
$false,
inference(unit_resolution,[status(thm)],[31,30,23]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12 % Problem : GRP005-1 : TPTP v9.0.0. Released v1.0.0.
% 0.03/0.12 % Command : run_E %s %d THM
% 0.12/0.34 % Computer : n012.cluster.edu
% 0.12/0.34 % Model : x86_64 x86_64
% 0.12/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34 % Memory : 8042.1875MB
% 0.12/0.34 % OS : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34 % CPULimit : 300
% 0.12/0.34 % WCLimit : 300
% 0.12/0.34 % DateTime : Thu Jun 19 15:26:56 EDT 2025
% 0.12/0.34 % CPUTime :
% 0.20/0.38 % SZS status Unsatisfiable
% 0.20/0.38 % SZS output start Proof
% See solution above
% 0.20/0.38 % E exiting
%------------------------------------------------------------------------------