%------------------------------------------------------------------------------
% File : LEO-II---2.3.1
% Problem : SYO317^5 : TPTP v9.3.1. Released v4.0.0.
% Transfm : none
% Format : tptp:raw
% Command : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n015.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 11:08:03 AM UTC 2026
% Result : Theorem 0.07s 0.21s
% Output : CNFRefutation 0.07s
% Verified :
% SZS Type : Refutation
% Derivation depth : 22
% Number of leaves : 1
% Syntax : Number of formulae : 51 ( 28 unt; 0 typ; 0 def)
% Number of atoms : 243 ( 74 equ; 0 cnn)
% Maximal formula atoms : 8 ( 4 avg)
% Number of connectives : 428 ( 103 ~; 52 |; 20 &; 234 @)
% ( 0 <=>; 19 =>; 0 <=; 0 <~>)
% Maximal formula depth : 11 ( 3 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 26 ( 26 >; 0 *; 0 +; 0 <<)
% Number of symbols : 8 ( 5 usr; 3 con; 0-2 aty)
% Number of variables : 120 ( 0 ^; 108 !; 12 ?; 120 :)
% Comments :
%------------------------------------------------------------------------------
thf(tp_a,type,
a: $i ).
thf(tp_cEQ,type,
cEQ: $i > $i > $o ).
thf(tp_cP,type,
cP: $i > $o ).
thf(tp_f,type,
f: $i > $i ).
thf(tp_sK1_SY10,type,
sK1_SY10: ( $i > $o ) > $i ).
thf(1,conjecture,
( ( ! [Xx: $i] : ( cEQ @ Xx @ Xx )
& ! [Xx: $i,Xy: $i] :
( ( ( cEQ @ Xx @ Xy )
& ( cP @ Xx ) )
=> ( cP @ Xy ) )
& ( cP @ a )
& ! [Xy: $i,Xz: $i] :
( ( cEQ @ ( f @ Xy ) @ ( f @ Xz ) )
=> ( cEQ @ Xy @ Xz ) ) )
=> ? [A: $i > $o] :
( ! [Xx: $i] :
( ( A @ ( f @ Xx ) )
=> ( cP @ Xx ) )
& ? [Xz: $i] : ( A @ Xz ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cTHM304) ).
thf(2,negated_conjecture,
( ( ( ! [Xx: $i] : ( cEQ @ Xx @ Xx )
& ! [Xx: $i,Xy: $i] :
( ( ( cEQ @ Xx @ Xy )
& ( cP @ Xx ) )
=> ( cP @ Xy ) )
& ( cP @ a )
& ! [Xy: $i,Xz: $i] :
( ( cEQ @ ( f @ Xy ) @ ( f @ Xz ) )
=> ( cEQ @ Xy @ Xz ) ) )
=> ? [A: $i > $o] :
( ! [Xx: $i] :
( ( A @ ( f @ Xx ) )
=> ( cP @ Xx ) )
& ? [Xz: $i] : ( A @ Xz ) ) )
= $false ),
inference(negate_conjecture,[status(cth)],[1]) ).
thf(3,plain,
( ( ( ! [Xx: $i] : ( cEQ @ Xx @ Xx )
& ! [Xx: $i,Xy: $i] :
( ( ( cEQ @ Xx @ Xy )
& ( cP @ Xx ) )
=> ( cP @ Xy ) )
& ( cP @ a )
& ! [Xy: $i,Xz: $i] :
( ( cEQ @ ( f @ Xy ) @ ( f @ Xz ) )
=> ( cEQ @ Xy @ Xz ) ) )
=> ? [A: $i > $o] :
( ! [Xx: $i] :
( ( A @ ( f @ Xx ) )
=> ( cP @ Xx ) )
& ? [Xz: $i] : ( A @ Xz ) ) )
= $false ),
inference(unfold_def,[status(thm)],[2]) ).
thf(4,plain,
( ( ! [Xx: $i] : ( cEQ @ Xx @ Xx ) )
= $true ),
inference(standard_cnf,[status(thm)],[3]) ).
thf(5,plain,
( ( ! [Xx: $i,Xy: $i] :
( ( ( cEQ @ Xx @ Xy )
& ( cP @ Xx ) )
=> ( cP @ Xy ) ) )
= $true ),
inference(standard_cnf,[status(thm)],[3]) ).
thf(6,plain,
( ( cP @ a )
= $true ),
inference(standard_cnf,[status(thm)],[3]) ).
thf(7,plain,
( ( ! [Xy: $i,Xz: $i] :
( ( cEQ @ ( f @ Xy ) @ ( f @ Xz ) )
=> ( cEQ @ Xy @ Xz ) ) )
= $true ),
inference(standard_cnf,[status(thm)],[3]) ).
thf(8,plain,
( ( ? [A: $i > $o] :
( ! [Xx: $i] :
( ( A @ ( f @ Xx ) )
=> ( cP @ Xx ) )
& ? [Xz: $i] : ( A @ Xz ) ) )
= $false ),
inference(standard_cnf,[status(thm)],[3]) ).
thf(9,plain,
( ( ~ ? [A: $i > $o] :
( ! [Xx: $i] :
( ( A @ ( f @ Xx ) )
=> ( cP @ Xx ) )
& ? [Xz: $i] : ( A @ Xz ) ) )
= $true ),
inference(polarity_switch,[status(thm)],[8]) ).
thf(10,plain,
( ( ! [Xy: $i,Xz: $i] :
( ( cEQ @ ( f @ Xy ) @ ( f @ Xz ) )
=> ( cEQ @ Xy @ Xz ) ) )
= $true ),
inference(copy,[status(thm)],[7]) ).
thf(11,plain,
( ( cP @ a )
= $true ),
inference(copy,[status(thm)],[6]) ).
thf(12,plain,
( ( ! [Xx: $i,Xy: $i] :
( ( ( cEQ @ Xx @ Xy )
& ( cP @ Xx ) )
=> ( cP @ Xy ) ) )
= $true ),
inference(copy,[status(thm)],[5]) ).
thf(13,plain,
( ( ! [Xx: $i] : ( cEQ @ Xx @ Xx ) )
= $true ),
inference(copy,[status(thm)],[4]) ).
thf(14,plain,
( ( ~ ? [A: $i > $o] :
( ! [Xx: $i] :
( ( A @ ( f @ Xx ) )
=> ( cP @ Xx ) )
& ? [Xz: $i] : ( A @ Xz ) ) )
= $true ),
inference(copy,[status(thm)],[9]) ).
thf(15,plain,
( ( ~ ~ ! [SX0: $i > $o] :
~ ~ ( ~ ! [SX1: $i] :
( ~ ( SX0 @ ( f @ SX1 ) )
| ( cP @ SX1 ) )
| ~ ~ ! [SX1: $i] :
~ ( SX0 @ SX1 ) ) )
= $true ),
inference(unfold_def,[status(thm)],[14]) ).
thf(16,plain,
( ( ! [SX0: $i,SX1: $i] :
( ~ ~ ( ~ ( cEQ @ SX0 @ SX1 )
| ~ ( cP @ SX0 ) )
| ( cP @ SX1 ) ) )
= $true ),
inference(unfold_def,[status(thm)],[12]) ).
thf(17,plain,
( ( ! [SX0: $i,SX1: $i] :
( ~ ( cEQ @ ( f @ SX0 ) @ ( f @ SX1 ) )
| ( cEQ @ SX0 @ SX1 ) ) )
= $true ),
inference(unfold_def,[status(thm)],[10]) ).
thf(18,plain,
! [SV1: $i] :
( ( cEQ @ SV1 @ SV1 )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[13]) ).
thf(19,plain,
( ( ~ ! [SX0: $i > $o] :
~ ~ ( ~ ! [SX1: $i] :
( ~ ( SX0 @ ( f @ SX1 ) )
| ( cP @ SX1 ) )
| ~ ~ ! [SX1: $i] :
~ ( SX0 @ SX1 ) ) )
= $false ),
inference(extcnf_not_pos,[status(thm)],[15]) ).
thf(20,plain,
! [SV2: $i] :
( ( ! [SY8: $i] :
( ~ ~ ( ~ ( cEQ @ SV2 @ SY8 )
| ~ ( cP @ SV2 ) )
| ( cP @ SY8 ) ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[16]) ).
thf(21,plain,
! [SV3: $i] :
( ( ! [SY9: $i] :
( ~ ( cEQ @ ( f @ SV3 ) @ ( f @ SY9 ) )
| ( cEQ @ SV3 @ SY9 ) ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[17]) ).
thf(22,plain,
( ( ! [SX0: $i > $o] :
~ ~ ( ~ ! [SX1: $i] :
( ~ ( SX0 @ ( f @ SX1 ) )
| ( cP @ SX1 ) )
| ~ ~ ! [SX1: $i] :
~ ( SX0 @ SX1 ) ) )
= $true ),
inference(extcnf_not_neg,[status(thm)],[19]) ).
thf(23,plain,
! [SV4: $i,SV2: $i] :
( ( ~ ~ ( ~ ( cEQ @ SV2 @ SV4 )
| ~ ( cP @ SV2 ) )
| ( cP @ SV4 ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[20]) ).
thf(24,plain,
! [SV5: $i,SV3: $i] :
( ( ~ ( cEQ @ ( f @ SV3 ) @ ( f @ SV5 ) )
| ( cEQ @ SV3 @ SV5 ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[21]) ).
thf(25,plain,
! [SV6: $i > $o] :
( ( ~ ~ ( ~ ! [SY10: $i] :
( ~ ( SV6 @ ( f @ SY10 ) )
| ( cP @ SY10 ) )
| ~ ~ ! [SY11: $i] :
~ ( SV6 @ SY11 ) ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[22]) ).
thf(26,plain,
! [SV4: $i,SV2: $i] :
( ( ( ~ ~ ( ~ ( cEQ @ SV2 @ SV4 )
| ~ ( cP @ SV2 ) ) )
= $true )
| ( ( cP @ SV4 )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[23]) ).
thf(27,plain,
! [SV5: $i,SV3: $i] :
( ( ( ~ ( cEQ @ ( f @ SV3 ) @ ( f @ SV5 ) ) )
= $true )
| ( ( cEQ @ SV3 @ SV5 )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[24]) ).
thf(28,plain,
! [SV6: $i > $o] :
( ( ~ ( ~ ! [SY10: $i] :
( ~ ( SV6 @ ( f @ SY10 ) )
| ( cP @ SY10 ) )
| ~ ~ ! [SY11: $i] :
~ ( SV6 @ SY11 ) ) )
= $false ),
inference(extcnf_not_pos,[status(thm)],[25]) ).
thf(29,plain,
! [SV4: $i,SV2: $i] :
( ( ( ~ ( ~ ( cEQ @ SV2 @ SV4 )
| ~ ( cP @ SV2 ) ) )
= $false )
| ( ( cP @ SV4 )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[26]) ).
thf(30,plain,
! [SV5: $i,SV3: $i] :
( ( ( cEQ @ ( f @ SV3 ) @ ( f @ SV5 ) )
= $false )
| ( ( cEQ @ SV3 @ SV5 )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[27]) ).
thf(31,plain,
! [SV6: $i > $o] :
( ( ~ ! [SY10: $i] :
( ~ ( SV6 @ ( f @ SY10 ) )
| ( cP @ SY10 ) )
| ~ ~ ! [SY11: $i] :
~ ( SV6 @ SY11 ) )
= $true ),
inference(extcnf_not_neg,[status(thm)],[28]) ).
thf(32,plain,
! [SV4: $i,SV2: $i] :
( ( ( ~ ( cEQ @ SV2 @ SV4 )
| ~ ( cP @ SV2 ) )
= $true )
| ( ( cP @ SV4 )
= $true ) ),
inference(extcnf_not_neg,[status(thm)],[29]) ).
thf(33,plain,
! [SV6: $i > $o] :
( ( ( ~ ! [SY10: $i] :
( ~ ( SV6 @ ( f @ SY10 ) )
| ( cP @ SY10 ) ) )
= $true )
| ( ( ~ ~ ! [SY11: $i] :
~ ( SV6 @ SY11 ) )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[31]) ).
thf(34,plain,
! [SV4: $i,SV2: $i] :
( ( ( ~ ( cEQ @ SV2 @ SV4 ) )
= $true )
| ( ( ~ ( cP @ SV2 ) )
= $true )
| ( ( cP @ SV4 )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[32]) ).
thf(35,plain,
! [SV6: $i > $o] :
( ( ( ! [SY10: $i] :
( ~ ( SV6 @ ( f @ SY10 ) )
| ( cP @ SY10 ) ) )
= $false )
| ( ( ~ ~ ! [SY11: $i] :
~ ( SV6 @ SY11 ) )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[33]) ).
thf(36,plain,
! [SV4: $i,SV2: $i] :
( ( ( cEQ @ SV2 @ SV4 )
= $false )
| ( ( ~ ( cP @ SV2 ) )
= $true )
| ( ( cP @ SV4 )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[34]) ).
thf(37,plain,
! [SV6: $i > $o] :
( ( ( ~ ( SV6 @ ( f @ ( sK1_SY10 @ SV6 ) ) )
| ( cP @ ( sK1_SY10 @ SV6 ) ) )
= $false )
| ( ( ~ ~ ! [SY11: $i] :
~ ( SV6 @ SY11 ) )
= $true ) ),
inference(extcnf_forall_neg,[status(esa)],[35]) ).
thf(38,plain,
! [SV4: $i,SV2: $i] :
( ( ( cP @ SV2 )
= $false )
| ( ( cEQ @ SV2 @ SV4 )
= $false )
| ( ( cP @ SV4 )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[36]) ).
thf(39,plain,
! [SV6: $i > $o] :
( ( ( ~ ( SV6 @ ( f @ ( sK1_SY10 @ SV6 ) ) ) )
= $false )
| ( ( ~ ~ ! [SY11: $i] :
~ ( SV6 @ SY11 ) )
= $true ) ),
inference(extcnf_or_neg,[status(thm)],[37]) ).
thf(40,plain,
! [SV6: $i > $o] :
( ( ( cP @ ( sK1_SY10 @ SV6 ) )
= $false )
| ( ( ~ ~ ! [SY11: $i] :
~ ( SV6 @ SY11 ) )
= $true ) ),
inference(extcnf_or_neg,[status(thm)],[37]) ).
thf(41,plain,
! [SV6: $i > $o] :
( ( ( SV6 @ ( f @ ( sK1_SY10 @ SV6 ) ) )
= $true )
| ( ( ~ ~ ! [SY11: $i] :
~ ( SV6 @ SY11 ) )
= $true ) ),
inference(extcnf_not_neg,[status(thm)],[39]) ).
thf(42,plain,
! [SV6: $i > $o] :
( ( ( ~ ! [SY11: $i] :
~ ( SV6 @ SY11 ) )
= $false )
| ( ( cP @ ( sK1_SY10 @ SV6 ) )
= $false ) ),
inference(extcnf_not_pos,[status(thm)],[40]) ).
thf(43,plain,
! [SV6: $i > $o] :
( ( ( ~ ! [SY11: $i] :
~ ( SV6 @ SY11 ) )
= $false )
| ( ( SV6 @ ( f @ ( sK1_SY10 @ SV6 ) ) )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[41]) ).
thf(44,plain,
! [SV6: $i > $o] :
( ( ( ! [SY11: $i] :
~ ( SV6 @ SY11 ) )
= $true )
| ( ( cP @ ( sK1_SY10 @ SV6 ) )
= $false ) ),
inference(extcnf_not_neg,[status(thm)],[42]) ).
thf(45,plain,
! [SV6: $i > $o] :
( ( ( ! [SY11: $i] :
~ ( SV6 @ SY11 ) )
= $true )
| ( ( SV6 @ ( f @ ( sK1_SY10 @ SV6 ) ) )
= $true ) ),
inference(extcnf_not_neg,[status(thm)],[43]) ).
thf(46,plain,
! [SV7: $i,SV6: $i > $o] :
( ( ( ~ ( SV6 @ SV7 ) )
= $true )
| ( ( cP @ ( sK1_SY10 @ SV6 ) )
= $false ) ),
inference(extcnf_forall_pos,[status(thm)],[44]) ).
thf(47,plain,
! [SV8: $i,SV6: $i > $o] :
( ( ( ~ ( SV6 @ SV8 ) )
= $true )
| ( ( SV6 @ ( f @ ( sK1_SY10 @ SV6 ) ) )
= $true ) ),
inference(extcnf_forall_pos,[status(thm)],[45]) ).
thf(48,plain,
! [SV7: $i,SV6: $i > $o] :
( ( ( SV6 @ SV7 )
= $false )
| ( ( cP @ ( sK1_SY10 @ SV6 ) )
= $false ) ),
inference(extcnf_not_pos,[status(thm)],[46]) ).
thf(49,plain,
! [SV8: $i,SV6: $i > $o] :
( ( ( SV6 @ SV8 )
= $false )
| ( ( SV6 @ ( f @ ( sK1_SY10 @ SV6 ) ) )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[47]) ).
thf(50,plain,
$false = $true,
inference(fo_atp_e,[status(thm)],[11,49,48,38,30,18]) ).
thf(51,plain,
$false,
inference(solved_all_splits,[solved_all_splits(join,[])],[50]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SYO317^5 : TPTP v9.3.1. Released v4.0.0.
% 0.00/0.04 % Command : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.07/0.17 % Computer : n015.cluster.edu
% 0.07/0.17 % Model : x86_64 x86_64
% 0.07/0.17 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.07/0.17 % Memory : 8046.5625MB
% 0.07/0.17 % OS : Linux 6.8.0-71-generic
% 0.07/0.17 % CPULimit : 300
% 0.07/0.17 % WCLimit : 300
% 0.07/0.18 % DateTime : Tue Oct 6 17:38:13 UTC 2026
% 0.07/0.18 % CPUTime :
% 0.07/0.18 Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.07/0.21
% 0.07/0.21 No.of.Axioms: 0
% 0.07/0.21
% 0.07/0.21 Length.of.Defs: 0
% 0.07/0.21
% 0.07/0.21 Contains.Choice.Funs: false
% 0.07/0.21 .
% 0.07/0.21
% 0.07/0.21 ********************************
% 0.07/0.21 * All subproblems solved! *
% 0.07/0.21 ********************************
% 0.07/0.21 % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:4,ps:0,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:25,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:50,loop_count:0,foatp_calls:1,translation:fof_full)
% 0.07/0.21
% 0.07/0.21 %**** Beginning of derivation protocol ****
% 0.07/0.21 % SZS output start CNFRefutation
% See solution above
% 0.07/0.21
% 0.07/0.21 %**** End of derivation protocol ****
% 0.07/0.21 %**** no. of clauses in derivation: 51 ****
% 0.07/0.21 %**** clause counter: 50 ****
% 0.07/0.21
% 0.07/0.21 % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:4,ps:0,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:25,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:50,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------