%------------------------------------------------------------------------------
% File : LEO-II---2.3.1
% Problem : NUM767^1 : TPTP v9.3.1. Released v3.7.0.
% Transfm : none
% Format : tptp:raw
% Command : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n018.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 Oct 7 10:35:10 AM UTC 2026
% Result : Theorem 0.08s 0.24s
% Output : CNFRefutation 0.08s
% Verified :
% SZS Type : Refutation
% Derivation depth : 12
% Number of leaves : 6
% Syntax : Number of formulae : 42 ( 29 unt; 0 typ; 0 def)
% Number of atoms : 175 ( 47 equ; 0 cnn)
% Maximal formula atoms : 3 ( 4 avg)
% Number of connectives : 271 ( 26 ~; 31 |; 0 &; 206 @)
% ( 0 <=>; 8 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 3 avg)
% Number of types : 2 ( 1 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 9 ( 6 usr; 6 con; 0-2 aty)
% Number of variables : 76 ( 0 ^; 76 !; 0 ?; 76 :)
% Comments :
%------------------------------------------------------------------------------
thf(tp_frac,type,
frac: $tType ).
thf(tp_eq,type,
eq: frac > frac > $o ).
thf(tp_pf,type,
pf: frac > frac > frac ).
thf(tp_v,type,
v: frac ).
thf(tp_w,type,
w: frac ).
thf(tp_x,type,
x: frac ).
thf(tp_y,type,
y: frac ).
thf(1,axiom,
! [Xx: frac,Xy: frac] :
( ( eq @ Xx @ Xy )
=> ( eq @ Xy @ Xx ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',satz38) ).
thf(2,axiom,
! [Xx: frac,Xy: frac,Xz: frac] :
( ( eq @ Xx @ Xy )
=> ( ( eq @ Xy @ Xz )
=> ( eq @ Xx @ Xz ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',satz39) ).
thf(3,axiom,
! [Xx: frac,Xy: frac,Xz: frac] :
( ( eq @ ( pf @ Xz @ Xx ) @ ( pf @ Xz @ Xy ) )
=> ( eq @ Xx @ Xy ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',satz63e) ).
thf(4,axiom,
eq @ ( pf @ y @ w ) @ x,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',f) ).
thf(5,axiom,
eq @ ( pf @ y @ v ) @ x,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',e) ).
thf(6,conjecture,
eq @ v @ w,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',satz67b) ).
thf(7,negated_conjecture,
( ( eq @ v @ w )
= $false ),
inference(negate_conjecture,[status(cth)],[6]) ).
thf(8,plain,
( ( eq @ v @ w )
= $false ),
inference(unfold_def,[status(thm)],[7]) ).
thf(9,plain,
( ( ! [Xx: frac,Xy: frac] :
( ( eq @ Xx @ Xy )
=> ( eq @ Xy @ Xx ) ) )
= $true ),
inference(unfold_def,[status(thm)],[1]) ).
thf(10,plain,
( ( ! [Xx: frac,Xy: frac,Xz: frac] :
( ( eq @ Xx @ Xy )
=> ( ( eq @ Xy @ Xz )
=> ( eq @ Xx @ Xz ) ) ) )
= $true ),
inference(unfold_def,[status(thm)],[2]) ).
thf(11,plain,
( ( ! [Xx: frac,Xy: frac,Xz: frac] :
( ( eq @ ( pf @ Xz @ Xx ) @ ( pf @ Xz @ Xy ) )
=> ( eq @ Xx @ Xy ) ) )
= $true ),
inference(unfold_def,[status(thm)],[3]) ).
thf(12,plain,
( ( eq @ ( pf @ y @ w ) @ x )
= $true ),
inference(unfold_def,[status(thm)],[4]) ).
thf(13,plain,
( ( eq @ ( pf @ y @ v ) @ x )
= $true ),
inference(unfold_def,[status(thm)],[5]) ).
thf(14,plain,
( ( ~ ( eq @ v @ w ) )
= $true ),
inference(polarity_switch,[status(thm)],[8]) ).
thf(15,plain,
( ( ! [Xx: frac,Xy: frac] :
( ~ ( eq @ Xx @ Xy )
| ( eq @ Xy @ Xx ) ) )
= $true ),
inference(extcnf_combined,[status(esa)],[9]) ).
thf(16,plain,
( ( ! [Xx: frac,Xy: frac] :
( ~ ( eq @ Xx @ Xy )
| ! [Xz: frac] :
( ~ ( eq @ Xy @ Xz )
| ( eq @ Xx @ Xz ) ) ) )
= $true ),
inference(extcnf_combined,[status(esa)],[10]) ).
thf(17,plain,
( ( ! [Xx: frac,Xy: frac] :
( ! [Xz: frac] :
~ ( eq @ ( pf @ Xz @ Xx ) @ ( pf @ Xz @ Xy ) )
| ( eq @ Xx @ Xy ) ) )
= $true ),
inference(extcnf_combined,[status(esa)],[11]) ).
thf(18,plain,
( ( eq @ ( pf @ y @ v ) @ x )
= $true ),
inference(copy,[status(thm)],[13]) ).
thf(19,plain,
( ( eq @ ( pf @ y @ w ) @ x )
= $true ),
inference(copy,[status(thm)],[12]) ).
thf(20,plain,
( ( ! [Xx: frac,Xy: frac] :
( ! [Xz: frac] :
~ ( eq @ ( pf @ Xz @ Xx ) @ ( pf @ Xz @ Xy ) )
| ( eq @ Xx @ Xy ) ) )
= $true ),
inference(copy,[status(thm)],[17]) ).
thf(21,plain,
( ( ! [Xx: frac,Xy: frac] :
( ~ ( eq @ Xx @ Xy )
| ! [Xz: frac] :
( ~ ( eq @ Xy @ Xz )
| ( eq @ Xx @ Xz ) ) ) )
= $true ),
inference(copy,[status(thm)],[16]) ).
thf(22,plain,
( ( ! [Xx: frac,Xy: frac] :
( ~ ( eq @ Xx @ Xy )
| ( eq @ Xy @ Xx ) ) )
= $true ),
inference(copy,[status(thm)],[15]) ).
thf(23,plain,
( ( ~ ( eq @ v @ w ) )
= $true ),
inference(copy,[status(thm)],[14]) ).
thf(24,plain,
! [SV1: frac] :
( ( ! [SY8: frac] :
( ! [SY9: frac] :
~ ( eq @ ( pf @ SY9 @ SV1 ) @ ( pf @ SY9 @ SY8 ) )
| ( eq @ SV1 @ SY8 ) ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[20]) ).
thf(25,plain,
! [SV2: frac] :
( ( ! [SY10: frac] :
( ~ ( eq @ SV2 @ SY10 )
| ! [SY11: frac] :
( ~ ( eq @ SY10 @ SY11 )
| ( eq @ SV2 @ SY11 ) ) ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[21]) ).
thf(26,plain,
! [SV3: frac] :
( ( ! [SY12: frac] :
( ~ ( eq @ SV3 @ SY12 )
| ( eq @ SY12 @ SV3 ) ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[22]) ).
thf(27,plain,
( ( eq @ v @ w )
= $false ),
inference(extcnf_not_pos,[status(thm)],[23]) ).
thf(28,plain,
! [SV4: frac,SV1: frac] :
( ( ! [SY13: frac] :
~ ( eq @ ( pf @ SY13 @ SV1 ) @ ( pf @ SY13 @ SV4 ) )
| ( eq @ SV1 @ SV4 ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[24]) ).
thf(29,plain,
! [SV5: frac,SV2: frac] :
( ( ~ ( eq @ SV2 @ SV5 )
| ! [SY14: frac] :
( ~ ( eq @ SV5 @ SY14 )
| ( eq @ SV2 @ SY14 ) ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[25]) ).
thf(30,plain,
! [SV6: frac,SV3: frac] :
( ( ~ ( eq @ SV3 @ SV6 )
| ( eq @ SV6 @ SV3 ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[26]) ).
thf(31,plain,
! [SV4: frac,SV1: frac] :
( ( ( ! [SY13: frac] :
~ ( eq @ ( pf @ SY13 @ SV1 ) @ ( pf @ SY13 @ SV4 ) ) )
= $true )
| ( ( eq @ SV1 @ SV4 )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[28]) ).
thf(32,plain,
! [SV5: frac,SV2: frac] :
( ( ( ~ ( eq @ SV2 @ SV5 ) )
= $true )
| ( ( ! [SY14: frac] :
( ~ ( eq @ SV5 @ SY14 )
| ( eq @ SV2 @ SY14 ) ) )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[29]) ).
thf(33,plain,
! [SV6: frac,SV3: frac] :
( ( ( ~ ( eq @ SV3 @ SV6 ) )
= $true )
| ( ( eq @ SV6 @ SV3 )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[30]) ).
thf(34,plain,
! [SV4: frac,SV1: frac,SV7: frac] :
( ( ( ~ ( eq @ ( pf @ SV7 @ SV1 ) @ ( pf @ SV7 @ SV4 ) ) )
= $true )
| ( ( eq @ SV1 @ SV4 )
= $true ) ),
inference(extcnf_forall_pos,[status(thm)],[31]) ).
thf(35,plain,
! [SV5: frac,SV2: frac] :
( ( ( eq @ SV2 @ SV5 )
= $false )
| ( ( ! [SY14: frac] :
( ~ ( eq @ SV5 @ SY14 )
| ( eq @ SV2 @ SY14 ) ) )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[32]) ).
thf(36,plain,
! [SV6: frac,SV3: frac] :
( ( ( eq @ SV3 @ SV6 )
= $false )
| ( ( eq @ SV6 @ SV3 )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[33]) ).
thf(37,plain,
! [SV4: frac,SV1: frac,SV7: frac] :
( ( ( eq @ ( pf @ SV7 @ SV1 ) @ ( pf @ SV7 @ SV4 ) )
= $false )
| ( ( eq @ SV1 @ SV4 )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[34]) ).
thf(38,plain,
! [SV2: frac,SV8: frac,SV5: frac] :
( ( ( ~ ( eq @ SV5 @ SV8 )
| ( eq @ SV2 @ SV8 ) )
= $true )
| ( ( eq @ SV2 @ SV5 )
= $false ) ),
inference(extcnf_forall_pos,[status(thm)],[35]) ).
thf(39,plain,
! [SV2: frac,SV8: frac,SV5: frac] :
( ( ( ~ ( eq @ SV5 @ SV8 ) )
= $true )
| ( ( eq @ SV2 @ SV8 )
= $true )
| ( ( eq @ SV2 @ SV5 )
= $false ) ),
inference(extcnf_or_pos,[status(thm)],[38]) ).
thf(40,plain,
! [SV2: frac,SV8: frac,SV5: frac] :
( ( ( eq @ SV5 @ SV8 )
= $false )
| ( ( eq @ SV2 @ SV8 )
= $true )
| ( ( eq @ SV2 @ SV5 )
= $false ) ),
inference(extcnf_not_pos,[status(thm)],[39]) ).
thf(41,plain,
$false = $true,
inference(fo_atp_e,[status(thm)],[18,40,37,36,27,19]) ).
thf(42,plain,
$false,
inference(solved_all_splits,[solved_all_splits(join,[])],[41]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : NUM767^1 : TPTP v9.3.1. Released v3.7.0.
% 0.00/0.05 % Command : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.08/0.19 % Computer : n018.cluster.edu
% 0.08/0.19 % Model : x86_64 x86_64
% 0.08/0.19 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.19 % Memory : 8046.5625MB
% 0.08/0.19 % OS : Linux 6.8.0-71-generic
% 0.08/0.19 % CPULimit : 300
% 0.08/0.19 % WCLimit : 300
% 0.08/0.19 % DateTime : Tue Oct 6 13:40:36 UTC 2026
% 0.08/0.20 % CPUTime :
% 0.08/0.20 Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.08/0.24
% 0.08/0.24 No.of.Axioms: 5
% 0.08/0.24
% 0.08/0.24 Length.of.Defs: 0
% 0.08/0.24
% 0.08/0.24 Contains.Choice.Funs: false
% 0.08/0.24 .
% 0.08/0.24
% 0.08/0.24 ********************************
% 0.08/0.24 * All subproblems solved! *
% 0.08/0.24 ********************************
% 0.08/0.24 % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:5,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:15,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:41,loop_count:0,foatp_calls:1,translation:fof_experiment)
% 0.08/0.24
% 0.08/0.24 %**** Beginning of derivation protocol ****
% 0.08/0.24 % SZS output start CNFRefutation
% See solution above
% 0.08/0.24
% 0.08/0.24 %**** End of derivation protocol ****
% 0.08/0.24 %**** no. of clauses in derivation: 42 ****
% 0.08/0.24 %**** clause counter: 41 ****
% 0.08/0.24
% 0.08/0.24 % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:5,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:15,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:41,loop_count:0,foatp_calls:1,translation:fof_experiment)
%------------------------------------------------------------------------------