TSTP Solution File: SET976+1 by Metis---2.4
View Problem
- Process Solution
%------------------------------------------------------------------------------
% File : Metis---2.4
% Problem : SET976+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm : none
% Format : tptp:raw
% Command : metis --show proof --show saturation %s
% Computer : n010.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 : 600s
% DateTime : Tue Jul 19 03:38:43 EDT 2022
% Result : Theorem 18.84s 19.02s
% Output : CNFRefutation 18.84s
% Verified :
% SZS Type : Refutation
% Derivation depth : 12
% Number of leaves : 13
% Syntax : Number of formulae : 94 ( 35 unt; 0 def)
% Number of atoms : 222 ( 82 equ)
% Maximal formula atoms : 12 ( 2 avg)
% Number of connectives : 236 ( 108 ~; 76 |; 28 &)
% ( 18 <=>; 6 =>; 0 <=; 0 <~>)
% Maximal formula depth : 10 ( 4 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 4 ( 1 usr; 1 prp; 0-2 aty)
% Number of functors : 16 ( 16 usr; 12 con; 0-2 aty)
% Number of variables : 161 ( 4 sgn 103 !; 18 ?)
% Comments :
%------------------------------------------------------------------------------
fof(d1_tarski,axiom,
! [A,B] :
( B = singleton(A)
<=> ! [C] :
( in(C,B)
<=> C = A ) ) ).
fof(l55_zfmisc_1,axiom,
! [A,B,C,D] :
( in(ordered_pair(A,B),cartesian_product2(C,D))
<=> ( in(A,C)
& in(B,D) ) ) ).
fof(t129_zfmisc_1,conjecture,
! [A,B,C,D] :
( in(ordered_pair(A,B),cartesian_product2(C,singleton(D)))
<=> ( in(A,C)
& B = D ) ) ).
fof(subgoal_0,plain,
! [A,B,C,D] :
( in(ordered_pair(A,B),cartesian_product2(C,singleton(D)))
=> in(A,C) ),
inference(strip,[],[t129_zfmisc_1]) ).
fof(subgoal_1,plain,
! [A,B,C,D] :
( ( in(ordered_pair(A,B),cartesian_product2(C,singleton(D)))
& in(A,C) )
=> B = D ),
inference(strip,[],[t129_zfmisc_1]) ).
fof(subgoal_2,plain,
! [A,B,C,D] :
( ( in(A,C)
& B = D )
=> in(ordered_pair(A,B),cartesian_product2(C,singleton(D))) ),
inference(strip,[],[t129_zfmisc_1]) ).
fof(negate_0_0,plain,
~ ! [A,B,C,D] :
( in(ordered_pair(A,B),cartesian_product2(C,singleton(D)))
=> in(A,C) ),
inference(negate,[],[subgoal_0]) ).
fof(normalize_0_0,plain,
? [A,B,C] :
( ~ in(A,C)
& ? [D] : in(ordered_pair(A,B),cartesian_product2(C,singleton(D))) ),
inference(canonicalize,[],[negate_0_0]) ).
fof(normalize_0_1,plain,
( ~ in(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C_1)
& ? [D] : in(ordered_pair(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),cartesian_product2(skolemFOFtoCNF_C_1,singleton(D))) ),
inference(skolemize,[],[normalize_0_0]) ).
fof(normalize_0_2,plain,
? [D] : in(ordered_pair(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),cartesian_product2(skolemFOFtoCNF_C_1,singleton(D))),
inference(conjunct,[],[normalize_0_1]) ).
fof(normalize_0_3,plain,
in(ordered_pair(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),cartesian_product2(skolemFOFtoCNF_C_1,singleton(skolemFOFtoCNF_D))),
inference(skolemize,[],[normalize_0_2]) ).
fof(normalize_0_4,plain,
! [A,B,C,D] :
( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
<=> ( ~ in(A,C)
| ~ in(B,D) ) ),
inference(canonicalize,[],[l55_zfmisc_1]) ).
fof(normalize_0_5,plain,
! [A,B,C,D] :
( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
<=> ( ~ in(A,C)
| ~ in(B,D) ) ),
inference(specialize,[],[normalize_0_4]) ).
fof(normalize_0_6,plain,
! [A,B,C,D] :
( ( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
| in(A,C) )
& ( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
| in(B,D) )
& ( ~ in(A,C)
| ~ in(B,D)
| in(ordered_pair(A,B),cartesian_product2(C,D)) ) ),
inference(clausify,[],[normalize_0_5]) ).
fof(normalize_0_7,plain,
! [A,B,C,D] :
( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
| in(A,C) ),
inference(conjunct,[],[normalize_0_6]) ).
fof(normalize_0_8,plain,
~ in(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C_1),
inference(conjunct,[],[normalize_0_1]) ).
cnf(refute_0_0,plain,
in(ordered_pair(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),cartesian_product2(skolemFOFtoCNF_C_1,singleton(skolemFOFtoCNF_D))),
inference(canonicalize,[],[normalize_0_3]) ).
cnf(refute_0_1,plain,
( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
| in(A,C) ),
inference(canonicalize,[],[normalize_0_7]) ).
cnf(refute_0_2,plain,
( ~ in(ordered_pair(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),cartesian_product2(skolemFOFtoCNF_C_1,singleton(skolemFOFtoCNF_D)))
| in(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C_1) ),
inference(subst,[],[refute_0_1:[bind(A,$fot(skolemFOFtoCNF_A_2)),bind(B,$fot(skolemFOFtoCNF_B)),bind(C,$fot(skolemFOFtoCNF_C_1)),bind(D,$fot(singleton(skolemFOFtoCNF_D)))]]) ).
cnf(refute_0_3,plain,
in(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C_1),
inference(resolve,[$cnf( in(ordered_pair(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),cartesian_product2(skolemFOFtoCNF_C_1,singleton(skolemFOFtoCNF_D))) )],[refute_0_0,refute_0_2]) ).
cnf(refute_0_4,plain,
~ in(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C_1),
inference(canonicalize,[],[normalize_0_8]) ).
cnf(refute_0_5,plain,
$false,
inference(resolve,[$cnf( in(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C_1) )],[refute_0_3,refute_0_4]) ).
fof(negate_1_0,plain,
~ ! [A,B,C,D] :
( ( in(ordered_pair(A,B),cartesian_product2(C,singleton(D)))
& in(A,C) )
=> B = D ),
inference(negate,[],[subgoal_1]) ).
fof(normalize_1_0,plain,
! [A,B] :
( B != singleton(A)
<=> ? [C] :
( C != A
<=> in(C,B) ) ),
inference(canonicalize,[],[d1_tarski]) ).
fof(normalize_1_1,plain,
! [A,B] :
( B != singleton(A)
<=> ? [C] :
( C != A
<=> in(C,B) ) ),
inference(specialize,[],[normalize_1_0]) ).
fof(normalize_1_2,plain,
! [A,B,C] :
( ( B != singleton(A)
| C != A
| in(C,B) )
& ( B != singleton(A)
| ~ in(C,B)
| C = A )
& ( skolemFOFtoCNF_C(A,B) != A
| ~ in(skolemFOFtoCNF_C(A,B),B)
| B = singleton(A) )
& ( B = singleton(A)
| skolemFOFtoCNF_C(A,B) = A
| in(skolemFOFtoCNF_C(A,B),B) ) ),
inference(clausify,[],[normalize_1_1]) ).
fof(normalize_1_3,plain,
! [A,B,C] :
( B != singleton(A)
| ~ in(C,B)
| C = A ),
inference(conjunct,[],[normalize_1_2]) ).
fof(normalize_1_4,plain,
? [A,B,C,D] :
( B != D
& in(A,C)
& in(ordered_pair(A,B),cartesian_product2(C,singleton(D))) ),
inference(canonicalize,[],[negate_1_0]) ).
fof(normalize_1_5,plain,
( skolemFOFtoCNF_B_1 != skolemFOFtoCNF_D_1
& in(ordered_pair(skolemFOFtoCNF_A_3,skolemFOFtoCNF_B_1),cartesian_product2(skolemFOFtoCNF_C_2,singleton(skolemFOFtoCNF_D_1)))
& in(skolemFOFtoCNF_A_3,skolemFOFtoCNF_C_2) ),
inference(skolemize,[],[normalize_1_4]) ).
fof(normalize_1_6,plain,
in(ordered_pair(skolemFOFtoCNF_A_3,skolemFOFtoCNF_B_1),cartesian_product2(skolemFOFtoCNF_C_2,singleton(skolemFOFtoCNF_D_1))),
inference(conjunct,[],[normalize_1_5]) ).
fof(normalize_1_7,plain,
! [A,B,C,D] :
( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
<=> ( ~ in(A,C)
| ~ in(B,D) ) ),
inference(canonicalize,[],[l55_zfmisc_1]) ).
fof(normalize_1_8,plain,
! [A,B,C,D] :
( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
<=> ( ~ in(A,C)
| ~ in(B,D) ) ),
inference(specialize,[],[normalize_1_7]) ).
fof(normalize_1_9,plain,
! [A,B,C,D] :
( ( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
| in(A,C) )
& ( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
| in(B,D) )
& ( ~ in(A,C)
| ~ in(B,D)
| in(ordered_pair(A,B),cartesian_product2(C,D)) ) ),
inference(clausify,[],[normalize_1_8]) ).
fof(normalize_1_10,plain,
! [A,B,C,D] :
( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
| in(B,D) ),
inference(conjunct,[],[normalize_1_9]) ).
fof(normalize_1_11,plain,
skolemFOFtoCNF_B_1 != skolemFOFtoCNF_D_1,
inference(conjunct,[],[normalize_1_5]) ).
cnf(refute_1_0,plain,
( B != singleton(A)
| ~ in(C,B)
| C = A ),
inference(canonicalize,[],[normalize_1_3]) ).
cnf(refute_1_1,plain,
( singleton(A) != singleton(A)
| ~ in(C,singleton(A))
| C = A ),
inference(subst,[],[refute_1_0:[bind(B,$fot(singleton(A)))]]) ).
cnf(refute_1_2,plain,
singleton(A) = singleton(A),
introduced(tautology,[refl,[$fot(singleton(A))]]) ).
cnf(refute_1_3,plain,
( ~ in(C,singleton(A))
| C = A ),
inference(resolve,[$cnf( $equal(singleton(A),singleton(A)) )],[refute_1_2,refute_1_1]) ).
cnf(refute_1_4,plain,
( ~ in(skolemFOFtoCNF_B_1,singleton(skolemFOFtoCNF_D_1))
| skolemFOFtoCNF_B_1 = skolemFOFtoCNF_D_1 ),
inference(subst,[],[refute_1_3:[bind(A,$fot(skolemFOFtoCNF_D_1)),bind(C,$fot(skolemFOFtoCNF_B_1))]]) ).
cnf(refute_1_5,plain,
in(ordered_pair(skolemFOFtoCNF_A_3,skolemFOFtoCNF_B_1),cartesian_product2(skolemFOFtoCNF_C_2,singleton(skolemFOFtoCNF_D_1))),
inference(canonicalize,[],[normalize_1_6]) ).
cnf(refute_1_6,plain,
( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
| in(B,D) ),
inference(canonicalize,[],[normalize_1_10]) ).
cnf(refute_1_7,plain,
( ~ in(ordered_pair(skolemFOFtoCNF_A_3,skolemFOFtoCNF_B_1),cartesian_product2(skolemFOFtoCNF_C_2,singleton(skolemFOFtoCNF_D_1)))
| in(skolemFOFtoCNF_B_1,singleton(skolemFOFtoCNF_D_1)) ),
inference(subst,[],[refute_1_6:[bind(A,$fot(skolemFOFtoCNF_A_3)),bind(B,$fot(skolemFOFtoCNF_B_1)),bind(C,$fot(skolemFOFtoCNF_C_2)),bind(D,$fot(singleton(skolemFOFtoCNF_D_1)))]]) ).
cnf(refute_1_8,plain,
in(skolemFOFtoCNF_B_1,singleton(skolemFOFtoCNF_D_1)),
inference(resolve,[$cnf( in(ordered_pair(skolemFOFtoCNF_A_3,skolemFOFtoCNF_B_1),cartesian_product2(skolemFOFtoCNF_C_2,singleton(skolemFOFtoCNF_D_1))) )],[refute_1_5,refute_1_7]) ).
cnf(refute_1_9,plain,
skolemFOFtoCNF_B_1 = skolemFOFtoCNF_D_1,
inference(resolve,[$cnf( in(skolemFOFtoCNF_B_1,singleton(skolemFOFtoCNF_D_1)) )],[refute_1_8,refute_1_4]) ).
cnf(refute_1_10,plain,
skolemFOFtoCNF_B_1 != skolemFOFtoCNF_D_1,
inference(canonicalize,[],[normalize_1_11]) ).
cnf(refute_1_11,plain,
$false,
inference(resolve,[$cnf( $equal(skolemFOFtoCNF_B_1,skolemFOFtoCNF_D_1) )],[refute_1_9,refute_1_10]) ).
fof(negate_2_0,plain,
~ ! [A,B,C,D] :
( ( in(A,C)
& B = D )
=> in(ordered_pair(A,B),cartesian_product2(C,singleton(D))) ),
inference(negate,[],[subgoal_2]) ).
fof(normalize_2_0,plain,
? [A,B,C,D] :
( ~ in(ordered_pair(A,B),cartesian_product2(C,singleton(D)))
& B = D
& in(A,C) ),
inference(canonicalize,[],[negate_2_0]) ).
fof(normalize_2_1,plain,
( ~ in(ordered_pair(skolemFOFtoCNF_A_4,skolemFOFtoCNF_B_2),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2)))
& skolemFOFtoCNF_B_2 = skolemFOFtoCNF_D_2
& in(skolemFOFtoCNF_A_4,skolemFOFtoCNF_C_3) ),
inference(skolemize,[],[normalize_2_0]) ).
fof(normalize_2_2,plain,
~ in(ordered_pair(skolemFOFtoCNF_A_4,skolemFOFtoCNF_B_2),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2))),
inference(conjunct,[],[normalize_2_1]) ).
fof(normalize_2_3,plain,
skolemFOFtoCNF_B_2 = skolemFOFtoCNF_D_2,
inference(conjunct,[],[normalize_2_1]) ).
fof(normalize_2_4,plain,
! [A,B] :
( B != singleton(A)
<=> ? [C] :
( C != A
<=> in(C,B) ) ),
inference(canonicalize,[],[d1_tarski]) ).
fof(normalize_2_5,plain,
! [A,B] :
( B != singleton(A)
<=> ? [C] :
( C != A
<=> in(C,B) ) ),
inference(specialize,[],[normalize_2_4]) ).
fof(normalize_2_6,plain,
! [A,B,C] :
( ( B != singleton(A)
| C != A
| in(C,B) )
& ( B != singleton(A)
| ~ in(C,B)
| C = A )
& ( skolemFOFtoCNF_C(A,B) != A
| ~ in(skolemFOFtoCNF_C(A,B),B)
| B = singleton(A) )
& ( B = singleton(A)
| skolemFOFtoCNF_C(A,B) = A
| in(skolemFOFtoCNF_C(A,B),B) ) ),
inference(clausify,[],[normalize_2_5]) ).
fof(normalize_2_7,plain,
! [A,B,C] :
( B != singleton(A)
| C != A
| in(C,B) ),
inference(conjunct,[],[normalize_2_6]) ).
fof(normalize_2_8,plain,
in(skolemFOFtoCNF_A_4,skolemFOFtoCNF_C_3),
inference(conjunct,[],[normalize_2_1]) ).
fof(normalize_2_9,plain,
! [A,B,C,D] :
( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
<=> ( ~ in(A,C)
| ~ in(B,D) ) ),
inference(canonicalize,[],[l55_zfmisc_1]) ).
fof(normalize_2_10,plain,
! [A,B,C,D] :
( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
<=> ( ~ in(A,C)
| ~ in(B,D) ) ),
inference(specialize,[],[normalize_2_9]) ).
fof(normalize_2_11,plain,
! [A,B,C,D] :
( ( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
| in(A,C) )
& ( ~ in(ordered_pair(A,B),cartesian_product2(C,D))
| in(B,D) )
& ( ~ in(A,C)
| ~ in(B,D)
| in(ordered_pair(A,B),cartesian_product2(C,D)) ) ),
inference(clausify,[],[normalize_2_10]) ).
fof(normalize_2_12,plain,
! [A,B,C,D] :
( ~ in(A,C)
| ~ in(B,D)
| in(ordered_pair(A,B),cartesian_product2(C,D)) ),
inference(conjunct,[],[normalize_2_11]) ).
cnf(refute_2_0,plain,
~ in(ordered_pair(skolemFOFtoCNF_A_4,skolemFOFtoCNF_B_2),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2))),
inference(canonicalize,[],[normalize_2_2]) ).
cnf(refute_2_1,plain,
skolemFOFtoCNF_B_2 = skolemFOFtoCNF_D_2,
inference(canonicalize,[],[normalize_2_3]) ).
cnf(refute_2_2,plain,
X = X,
introduced(tautology,[refl,[$fot(X)]]) ).
cnf(refute_2_3,plain,
( X != X
| X != Y
| Y = X ),
introduced(tautology,[equality,[$cnf( $equal(X,X) ),[0],$fot(Y)]]) ).
cnf(refute_2_4,plain,
( X != Y
| Y = X ),
inference(resolve,[$cnf( $equal(X,X) )],[refute_2_2,refute_2_3]) ).
cnf(refute_2_5,plain,
( skolemFOFtoCNF_B_2 != skolemFOFtoCNF_D_2
| skolemFOFtoCNF_D_2 = skolemFOFtoCNF_B_2 ),
inference(subst,[],[refute_2_4:[bind(X,$fot(skolemFOFtoCNF_B_2)),bind(Y,$fot(skolemFOFtoCNF_D_2))]]) ).
cnf(refute_2_6,plain,
skolemFOFtoCNF_D_2 = skolemFOFtoCNF_B_2,
inference(resolve,[$cnf( $equal(skolemFOFtoCNF_B_2,skolemFOFtoCNF_D_2) )],[refute_2_1,refute_2_5]) ).
cnf(refute_2_7,plain,
singleton(skolemFOFtoCNF_D_2) = singleton(skolemFOFtoCNF_D_2),
introduced(tautology,[refl,[$fot(singleton(skolemFOFtoCNF_D_2))]]) ).
cnf(refute_2_8,plain,
( singleton(skolemFOFtoCNF_D_2) != singleton(skolemFOFtoCNF_D_2)
| skolemFOFtoCNF_D_2 != skolemFOFtoCNF_B_2
| singleton(skolemFOFtoCNF_D_2) = singleton(skolemFOFtoCNF_B_2) ),
introduced(tautology,[equality,[$cnf( $equal(singleton(skolemFOFtoCNF_D_2),singleton(skolemFOFtoCNF_D_2)) ),[1,0],$fot(skolemFOFtoCNF_B_2)]]) ).
cnf(refute_2_9,plain,
( skolemFOFtoCNF_D_2 != skolemFOFtoCNF_B_2
| singleton(skolemFOFtoCNF_D_2) = singleton(skolemFOFtoCNF_B_2) ),
inference(resolve,[$cnf( $equal(singleton(skolemFOFtoCNF_D_2),singleton(skolemFOFtoCNF_D_2)) )],[refute_2_7,refute_2_8]) ).
cnf(refute_2_10,plain,
singleton(skolemFOFtoCNF_D_2) = singleton(skolemFOFtoCNF_B_2),
inference(resolve,[$cnf( $equal(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B_2) )],[refute_2_6,refute_2_9]) ).
cnf(refute_2_11,plain,
cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2)) = cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2)),
introduced(tautology,[refl,[$fot(cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2)))]]) ).
cnf(refute_2_12,plain,
( cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2)) != cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2))
| singleton(skolemFOFtoCNF_D_2) != singleton(skolemFOFtoCNF_B_2)
| cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2)) = cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_B_2)) ),
introduced(tautology,[equality,[$cnf( $equal(cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2)),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2))) ),[1,1],$fot(singleton(skolemFOFtoCNF_B_2))]]) ).
cnf(refute_2_13,plain,
( singleton(skolemFOFtoCNF_D_2) != singleton(skolemFOFtoCNF_B_2)
| cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2)) = cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_B_2)) ),
inference(resolve,[$cnf( $equal(cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2)),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2))) )],[refute_2_11,refute_2_12]) ).
cnf(refute_2_14,plain,
cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2)) = cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_B_2)),
inference(resolve,[$cnf( $equal(singleton(skolemFOFtoCNF_D_2),singleton(skolemFOFtoCNF_B_2)) )],[refute_2_10,refute_2_13]) ).
cnf(refute_2_15,plain,
( cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2)) != cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_B_2))
| ~ in(ordered_pair(skolemFOFtoCNF_A_4,skolemFOFtoCNF_B_2),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_B_2)))
| in(ordered_pair(skolemFOFtoCNF_A_4,skolemFOFtoCNF_B_2),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2))) ),
introduced(tautology,[equality,[$cnf( ~ in(ordered_pair(skolemFOFtoCNF_A_4,skolemFOFtoCNF_B_2),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2))) ),[1],$fot(cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_B_2)))]]) ).
cnf(refute_2_16,plain,
( ~ in(ordered_pair(skolemFOFtoCNF_A_4,skolemFOFtoCNF_B_2),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_B_2)))
| in(ordered_pair(skolemFOFtoCNF_A_4,skolemFOFtoCNF_B_2),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2))) ),
inference(resolve,[$cnf( $equal(cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2)),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_B_2))) )],[refute_2_14,refute_2_15]) ).
cnf(refute_2_17,plain,
~ in(ordered_pair(skolemFOFtoCNF_A_4,skolemFOFtoCNF_B_2),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_B_2))),
inference(resolve,[$cnf( in(ordered_pair(skolemFOFtoCNF_A_4,skolemFOFtoCNF_B_2),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_D_2))) )],[refute_2_16,refute_2_0]) ).
cnf(refute_2_18,plain,
( B != singleton(A)
| C != A
| in(C,B) ),
inference(canonicalize,[],[normalize_2_7]) ).
cnf(refute_2_19,plain,
( A != A
| singleton(A) != singleton(A)
| in(A,singleton(A)) ),
inference(subst,[],[refute_2_18:[bind(B,$fot(singleton(A))),bind(C,$fot(A))]]) ).
cnf(refute_2_20,plain,
A = A,
introduced(tautology,[refl,[$fot(A)]]) ).
cnf(refute_2_21,plain,
( singleton(A) != singleton(A)
| in(A,singleton(A)) ),
inference(resolve,[$cnf( $equal(A,A) )],[refute_2_20,refute_2_19]) ).
cnf(refute_2_22,plain,
singleton(A) = singleton(A),
introduced(tautology,[refl,[$fot(singleton(A))]]) ).
cnf(refute_2_23,plain,
in(A,singleton(A)),
inference(resolve,[$cnf( $equal(singleton(A),singleton(A)) )],[refute_2_22,refute_2_21]) ).
cnf(refute_2_24,plain,
in(X_249,singleton(X_249)),
inference(subst,[],[refute_2_23:[bind(A,$fot(X_249))]]) ).
cnf(refute_2_25,plain,
in(skolemFOFtoCNF_A_4,skolemFOFtoCNF_C_3),
inference(canonicalize,[],[normalize_2_8]) ).
cnf(refute_2_26,plain,
( ~ in(A,C)
| ~ in(B,D)
| in(ordered_pair(A,B),cartesian_product2(C,D)) ),
inference(canonicalize,[],[normalize_2_12]) ).
cnf(refute_2_27,plain,
( ~ in(X_246,X_248)
| ~ in(skolemFOFtoCNF_A_4,skolemFOFtoCNF_C_3)
| in(ordered_pair(skolemFOFtoCNF_A_4,X_246),cartesian_product2(skolemFOFtoCNF_C_3,X_248)) ),
inference(subst,[],[refute_2_26:[bind(A,$fot(skolemFOFtoCNF_A_4)),bind(B,$fot(X_246)),bind(C,$fot(skolemFOFtoCNF_C_3)),bind(D,$fot(X_248))]]) ).
cnf(refute_2_28,plain,
( ~ in(X_246,X_248)
| in(ordered_pair(skolemFOFtoCNF_A_4,X_246),cartesian_product2(skolemFOFtoCNF_C_3,X_248)) ),
inference(resolve,[$cnf( in(skolemFOFtoCNF_A_4,skolemFOFtoCNF_C_3) )],[refute_2_25,refute_2_27]) ).
cnf(refute_2_29,plain,
( ~ in(X_249,singleton(X_249))
| in(ordered_pair(skolemFOFtoCNF_A_4,X_249),cartesian_product2(skolemFOFtoCNF_C_3,singleton(X_249))) ),
inference(subst,[],[refute_2_28:[bind(X_246,$fot(X_249)),bind(X_248,$fot(singleton(X_249)))]]) ).
cnf(refute_2_30,plain,
in(ordered_pair(skolemFOFtoCNF_A_4,X_249),cartesian_product2(skolemFOFtoCNF_C_3,singleton(X_249))),
inference(resolve,[$cnf( in(X_249,singleton(X_249)) )],[refute_2_24,refute_2_29]) ).
cnf(refute_2_31,plain,
in(ordered_pair(skolemFOFtoCNF_A_4,skolemFOFtoCNF_B_2),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_B_2))),
inference(subst,[],[refute_2_30:[bind(X_249,$fot(skolemFOFtoCNF_B_2))]]) ).
cnf(refute_2_32,plain,
$false,
inference(resolve,[$cnf( in(ordered_pair(skolemFOFtoCNF_A_4,skolemFOFtoCNF_B_2),cartesian_product2(skolemFOFtoCNF_C_3,singleton(skolemFOFtoCNF_B_2))) )],[refute_2_31,refute_2_17]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12 % Problem : SET976+1 : TPTP v8.1.0. Released v3.2.0.
% 0.03/0.13 % Command : metis --show proof --show saturation %s
% 0.13/0.34 % Computer : n010.cluster.edu
% 0.13/0.34 % Model : x86_64 x86_64
% 0.13/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34 % Memory : 8042.1875MB
% 0.13/0.34 % OS : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34 % CPULimit : 300
% 0.13/0.34 % WCLimit : 600
% 0.13/0.34 % DateTime : Mon Jul 11 09:32:00 EDT 2022
% 0.13/0.34 % CPUTime :
% 0.13/0.34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 18.84/19.02 % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 18.84/19.02
% 18.84/19.02 % SZS output start CNFRefutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 18.84/19.03
%------------------------------------------------------------------------------