TSTP Solution File: SET927+1 by CSE---1.6

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : CSE---1.6
% Problem  : SET927+1 : TPTP v8.1.2. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %s %d

% Computer : n002.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 : Thu Aug 31 14:31:44 EDT 2023

% Result   : Theorem 84.74s 84.86s
% Output   : CNFRefutation 84.74s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem    : SET927+1 : TPTP v8.1.2. Released v3.2.0.
% 0.07/0.13  % Command    : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %s %d
% 0.13/0.34  % Computer : n002.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    : 300
% 0.13/0.34  % DateTime   : Sat Aug 26 15:43:48 EDT 2023
% 0.13/0.34  % CPUTime    : 
% 0.20/0.56  start to proof:theBenchmark
% 84.74/84.85  %-------------------------------------------
% 84.74/84.85  % File        :CSE---1.6
% 84.74/84.85  % Problem     :theBenchmark
% 84.74/84.85  % Transform   :cnf
% 84.74/84.85  % Format      :tptp:raw
% 84.74/84.85  % Command     :java -jar mcs_scs.jar %d %s
% 84.74/84.85  
% 84.74/84.85  % Result      :Theorem 84.250000s
% 84.74/84.85  % Output      :CNFRefutation 84.250000s
% 84.74/84.85  %-------------------------------------------
% 84.74/84.86  %------------------------------------------------------------------------------
% 84.74/84.86  % File     : SET927+1 : TPTP v8.1.2. Released v3.2.0.
% 84.74/84.86  % Domain   : Set theory
% 84.74/84.86  % Problem  : diff(uno_pair(A,B),C) = sgtn(A) <=> (~in(A,C) & (in(B,C) | A = B))
% 84.74/84.86  % Version  : [Urb06] axioms : Especial.
% 84.74/84.86  % English  :
% 84.74/84.86  
% 84.74/84.86  % Refs     : [Byl90] Bylinski (1990), Some Basic Properties of Sets
% 84.74/84.86  %          : [Urb06] Urban (2006), Email to G. Sutcliffe
% 84.74/84.86  % Source   : [Urb06]
% 84.74/84.86  % Names    : zfmisc_1__t70_zfmisc_1 [Urb06]
% 84.74/84.86  
% 84.74/84.86  % Status   : Theorem
% 84.74/84.86  % Rating   : 0.08 v7.5.0, 0.09 v7.4.0, 0.07 v7.3.0, 0.10 v7.2.0, 0.07 v7.1.0, 0.04 v7.0.0, 0.00 v6.4.0, 0.04 v6.3.0, 0.08 v6.1.0, 0.13 v6.0.0, 0.09 v5.5.0, 0.11 v5.4.0, 0.14 v5.3.0, 0.15 v5.2.0, 0.05 v5.1.0, 0.10 v5.0.0, 0.04 v4.1.0, 0.09 v4.0.1, 0.13 v4.0.0, 0.12 v3.7.0, 0.15 v3.5.0, 0.16 v3.3.0, 0.21 v3.2.0
% 84.74/84.86  % Syntax   : Number of formulae    :    6 (   3 unt;   0 def)
% 84.74/84.86  %            Number of atoms       :   13 (   5 equ)
% 84.74/84.86  %            Maximal formula atoms :    4 (   2 avg)
% 84.74/84.86  %            Number of connectives :   11 (   4   ~;   2   |;   2   &)
% 84.74/84.86  %                                         (   2 <=>;   1  =>;   0  <=;   0 <~>)
% 84.74/84.86  %            Maximal formula depth :    7 (   5 avg)
% 84.74/84.86  %            Maximal term depth    :    3 (   1 avg)
% 84.74/84.86  %            Number of predicates  :    3 (   2 usr;   0 prp; 1-2 aty)
% 84.74/84.86  %            Number of functors    :    3 (   3 usr;   0 con; 1-2 aty)
% 84.74/84.86  %            Number of variables   :   12 (  10   !;   2   ?)
% 84.74/84.86  % SPC      : FOF_THM_RFO_SEQ
% 84.74/84.86  
% 84.74/84.86  % Comments : Translated by MPTP 0.2 from the original problem in the Mizar
% 84.74/84.86  %            library, www.mizar.org
% 84.74/84.86  %------------------------------------------------------------------------------
% 84.74/84.86  fof(commutativity_k2_tarski,axiom,
% 84.74/84.86      ! [A,B] : unordered_pair(A,B) = unordered_pair(B,A) ).
% 84.74/84.86  
% 84.74/84.86  fof(antisymmetry_r2_hidden,axiom,
% 84.74/84.86      ! [A,B] :
% 84.74/84.86        ( in(A,B)
% 84.74/84.86       => ~ in(B,A) ) ).
% 84.74/84.86  
% 84.74/84.86  fof(rc1_xboole_0,axiom,
% 84.74/84.86      ? [A] : empty(A) ).
% 84.74/84.86  
% 84.74/84.86  fof(rc2_xboole_0,axiom,
% 84.74/84.86      ? [A] : ~ empty(A) ).
% 84.74/84.86  
% 84.74/84.86  fof(t70_zfmisc_1,conjecture,
% 84.74/84.86      ! [A,B,C] :
% 84.74/84.86        ( set_difference(unordered_pair(A,B),C) = singleton(A)
% 84.74/84.86      <=> ( ~ in(A,C)
% 84.74/84.86          & ( in(B,C)
% 84.74/84.86            | A = B ) ) ) ).
% 84.74/84.86  
% 84.74/84.86  fof(l39_zfmisc_1,axiom,
% 84.74/84.86      ! [A,B,C] :
% 84.74/84.86        ( set_difference(unordered_pair(A,B),C) = singleton(A)
% 84.74/84.86      <=> ( ~ in(A,C)
% 84.74/84.86          & ( in(B,C)
% 84.74/84.86            | A = B ) ) ) ).
% 84.74/84.86  
% 84.74/84.86  %------------------------------------------------------------------------------
% 84.74/84.86  %-------------------------------------------
% 84.74/84.86  % Proof found
% 84.74/84.86  % SZS status Theorem for theBenchmark
% 84.74/84.86  % SZS output start Proof
% 84.74/84.87  %ClaNum:23(EqnAxiom:11)
% 84.74/84.87  %VarNum:38(SingletonVarNum:16)
% 84.74/84.87  %MaxLitNum:3
% 84.74/84.87  %MaxfuncDepth:2
% 84.74/84.87  %SharedTerms:18
% 84.74/84.87  %goalClause: 16 17 19 21
% 84.74/84.87  [12]P1(a1)
% 84.74/84.87  [14]~P1(a3)
% 84.74/84.87  [13]E(f2(x131,x132),f2(x132,x131))
% 84.74/84.87  [17]~P2(a4,a6)+E(f7(f2(a4,a5),a6),f8(a4))
% 84.74/84.87  [15]~P2(x152,x151)+~P2(x151,x152)
% 84.74/84.87  [23]~P2(x231,x233)+~E(f7(f2(x231,x232),x233),f8(x231))
% 84.74/84.87  [16]E(a4,a5)+P2(a5,a6)+E(f7(f2(a4,a5),a6),f8(a4))
% 84.74/84.87  [19]P2(a4,a6)+~E(a4,a5)+~E(f7(f2(a4,a5),a6),f8(a4))
% 84.74/84.87  [21]P2(a4,a6)+~P2(a5,a6)+~E(f7(f2(a4,a5),a6),f8(a4))
% 84.74/84.87  [18]P2(x181,x183)+~E(x181,x182)+E(f7(f2(x181,x182),x183),f8(x181))
% 84.74/84.87  [20]P2(x201,x203)+~P2(x202,x203)+E(f7(f2(x201,x202),x203),f8(x201))
% 84.74/84.87  [22]E(x221,x222)+P2(x221,x223)+~E(f7(f2(x222,x221),x223),f8(x222))
% 84.74/84.87  %EqnAxiom
% 84.74/84.87  [1]E(x11,x11)
% 84.74/84.87  [2]E(x22,x21)+~E(x21,x22)
% 84.74/84.87  [3]E(x31,x33)+~E(x31,x32)+~E(x32,x33)
% 84.74/84.87  [4]~E(x41,x42)+E(f2(x41,x43),f2(x42,x43))
% 84.74/84.87  [5]~E(x51,x52)+E(f2(x53,x51),f2(x53,x52))
% 84.74/84.87  [6]~E(x61,x62)+E(f8(x61),f8(x62))
% 84.74/84.87  [7]~E(x71,x72)+E(f7(x71,x73),f7(x72,x73))
% 84.74/84.87  [8]~E(x81,x82)+E(f7(x83,x81),f7(x83,x82))
% 84.74/84.87  [9]~P1(x91)+P1(x92)+~E(x91,x92)
% 84.74/84.87  [10]P2(x102,x103)+~E(x101,x102)+~P2(x101,x103)
% 84.74/84.87  [11]P2(x113,x112)+~E(x111,x112)+~P2(x113,x111)
% 84.74/84.87  
% 84.74/84.87  %-------------------------------------------
% 84.74/84.88  cnf(25,plain,
% 84.74/84.88     (E(f7(f2(x251,x252),x253),f7(f2(x252,x251),x253))),
% 84.74/84.88     inference(scs_inference,[],[13,8,7])).
% 84.74/84.88  cnf(29,plain,
% 84.74/84.88     (~E(a1,a3)),
% 84.74/84.88     inference(scs_inference,[],[12,14,13,8,7,6,5,4,9])).
% 84.74/84.88  cnf(33,plain,
% 84.74/84.88     (~E(a3,a1)),
% 84.74/84.88     inference(scs_inference,[],[29,2])).
% 84.74/84.88  cnf(50,plain,
% 84.74/84.88     (P2(x501,x502)+~E(a3,x501)+~E(f7(f2(a1,a3),x502),f8(a1))),
% 84.74/84.88     inference(scs_inference,[],[33,22,10])).
% 84.74/84.88  cnf(197,plain,
% 84.74/84.88     (E(a5,a4)+P2(a5,a6)+E(f7(f2(a4,a5),a6),f8(a4))),
% 84.74/84.88     inference(scs_inference,[],[16,2])).
% 84.74/84.88  cnf(204,plain,
% 84.74/84.88     (E(f2(a5,x2041),f2(a4,x2041))+P2(a5,a6)+E(f7(f2(a4,a5),a6),f8(a4))),
% 84.74/84.88     inference(scs_inference,[],[197,4])).
% 84.74/84.88  cnf(280,plain,
% 84.74/84.88     (~E(f8(x2801),f7(f2(x2801,x2802),x2803))+~P2(x2801,x2803)),
% 84.74/84.88     inference(scs_inference,[],[2,23])).
% 84.74/84.88  cnf(348,plain,
% 84.74/84.88     (E(f2(a4,x3481),f2(a5,x3481))+P2(a5,a6)+E(f7(f2(a4,a5),a6),f8(a4))),
% 84.74/84.88     inference(scs_inference,[],[2,204])).
% 84.74/84.88  cnf(1390,plain,
% 84.74/84.88     (~P2(a4,a6)),
% 84.74/84.88     inference(scs_inference,[],[17,23])).
% 84.74/84.88  cnf(1391,plain,
% 84.74/84.88     (~E(f7(f2(a4,a5),a6),f8(a4))+~E(a4,a5)),
% 84.74/84.88     inference(scs_inference,[],[1390,19])).
% 84.74/84.88  cnf(1392,plain,
% 84.74/84.88     (~E(f7(f2(a4,a5),a6),f8(a4))+~P2(a5,a6)),
% 84.74/84.88     inference(scs_inference,[],[1390,21])).
% 84.74/84.88  cnf(1395,plain,
% 84.74/84.88     (~P2(x13951,a6)+E(f7(f2(a4,x13951),a6),f8(a4))),
% 84.74/84.88     inference(scs_inference,[],[1390,50,20])).
% 84.74/84.88  cnf(1397,plain,
% 84.74/84.88     (~E(a4,x13971)+E(f7(f2(a4,x13971),a6),f8(a4))),
% 84.74/84.88     inference(scs_inference,[],[1390,50,20,18])).
% 84.74/84.88  cnf(1403,plain,
% 84.74/84.88     (E(f7(f2(a4,a4),a6),f8(a4))),
% 84.74/84.88     inference(equality_inference,[],[1397])).
% 84.74/84.88  cnf(1404,plain,
% 84.74/84.88     (~E(f8(a4),f7(f2(a4,a5),a6))+~E(a4,a5)),
% 84.74/84.88     inference(scs_inference,[],[1391,2])).
% 84.74/84.88  cnf(1405,plain,
% 84.74/84.88     (E(f8(a4),f7(f2(a4,a4),a6))),
% 84.74/84.88     inference(scs_inference,[],[1403,2])).
% 84.74/84.88  cnf(1409,plain,
% 84.74/84.88     (~E(f8(a4),f7(f2(a4,a5),a6))+~P2(a5,a6)),
% 84.74/84.88     inference(scs_inference,[],[1392,2])).
% 84.74/84.88  cnf(1419,plain,
% 84.74/84.88     (~E(f8(a4),f7(f2(a5,a4),a6))+~E(a4,a5)),
% 84.74/84.88     inference(scs_inference,[],[25,1404,3])).
% 84.74/84.88  cnf(1423,plain,
% 84.74/84.88     (~E(f7(f2(a4,a4),a6),f7(f2(a4,a5),a6))+~P2(a5,a6)),
% 84.74/84.88     inference(scs_inference,[],[1405,1409,3])).
% 84.74/84.88  cnf(1427,plain,
% 84.74/84.88     (~E(f7(f2(a5,a4),a6),f8(a4))+~E(a4,a5)),
% 84.74/84.88     inference(scs_inference,[],[1419,2])).
% 84.74/84.88  cnf(1430,plain,
% 84.74/84.88     (~E(a5,a4)+~E(f7(f2(a5,a4),a6),f8(a4))),
% 84.74/84.88     inference(scs_inference,[],[1427,2])).
% 84.74/84.88  cnf(1432,plain,
% 84.74/84.88     (~E(f8(a4),f7(f2(a5,a4),a6))+~E(a5,a4)),
% 84.74/84.88     inference(scs_inference,[],[1430,2])).
% 84.74/84.88  cnf(1434,plain,
% 84.74/84.88     (~E(f7(f2(a4,a4),a6),f7(f2(a5,a4),a6))+~E(a5,a4)),
% 84.74/84.88     inference(scs_inference,[],[1405,1432,3])).
% 84.74/84.88  cnf(1435,plain,
% 84.74/84.88     (~E(f2(a4,a4),f2(a4,a5))+~P2(a5,a6)),
% 84.74/84.88     inference(scs_inference,[],[1423,7])).
% 84.74/84.88  cnf(1438,plain,
% 84.74/84.88     (~E(a4,a5)+~E(f7(f2(a4,a4),a6),f7(f2(a5,a4),a6))),
% 84.74/84.88     inference(scs_inference,[],[1434,2])).
% 84.74/84.88  cnf(1439,plain,
% 84.74/84.88     (~E(f7(f2(a4,a4),a6),f7(f2(a5,a4),a6))+~E(f7(f2(a5,a4),a6),f8(a5))),
% 84.74/84.88     inference(scs_inference,[],[1390,1438,22])).
% 84.74/84.88  cnf(1443,plain,
% 84.74/84.88     (~E(f8(a5),f7(f2(a5,a4),a6))+~E(f7(f2(a4,a4),a6),f7(f2(a5,a4),a6))),
% 84.74/84.88     inference(scs_inference,[],[1439,2])).
% 84.74/84.88  cnf(1445,plain,
% 84.74/84.88     (~E(f2(a4,a4),f2(a5,a4))+~E(f8(a5),f7(f2(a5,a4),a6))),
% 84.74/84.88     inference(scs_inference,[],[1443,7])).
% 84.74/84.88  cnf(1446,plain,
% 84.74/84.88     (~E(a4,a5)+~E(f8(a5),f7(f2(a5,a4),a6))),
% 84.74/84.88     inference(scs_inference,[],[1445,4])).
% 84.74/84.88  cnf(1447,plain,
% 84.74/84.88     (~E(a5,a4)+~E(f8(a5),f7(f2(a5,a4),a6))),
% 84.74/84.88     inference(scs_inference,[],[1446,2])).
% 84.74/84.88  cnf(1843,plain,
% 84.74/84.88     (~E(a5,x18431)+~E(f2(a4,a4),f2(a4,a5))+E(f7(f2(a5,x18431),a6),f8(a5))),
% 84.74/84.88     inference(scs_inference,[],[1435,18])).
% 84.74/84.88  cnf(1844,plain,
% 84.74/84.88     (~E(f2(a4,a5),f2(a4,a4))+E(f7(f2(a5,x18441),a6),f8(a5))+~E(a5,x18441)),
% 84.74/84.88     inference(scs_inference,[],[1843,2])).
% 84.74/84.88  cnf(1845,plain,
% 84.74/84.88     (~E(a5,a4)+E(f7(f2(a5,x18451),a6),f8(a5))+~E(a5,x18451)),
% 84.74/84.88     inference(scs_inference,[],[1844,5])).
% 84.74/84.88  cnf(1846,plain,
% 84.74/84.88     (~E(a4,a5)+E(f7(f2(a5,a4),a6),f8(a5))),
% 84.74/84.88     inference(scs_inference,[],[1845,2])).
% 84.74/84.88  cnf(1856,plain,
% 84.74/84.88     (~E(f2(a4,a4),f2(a4,a5))+E(f7(f2(a4,a5),a6),f8(a4))+E(a5,a4)),
% 84.74/84.88     inference(scs_inference,[],[1435,197])).
% 84.74/84.88  cnf(1857,plain,
% 84.74/84.88     (E(a5,a4)+P2(a5,a6)+~E(f2(a4,a4),f2(a4,a5))),
% 84.74/84.88     inference(scs_inference,[],[1856,22])).
% 84.74/84.88  cnf(1858,plain,
% 84.74/84.88     (~E(f2(a4,a4),f2(a4,a5))+E(a5,a4)),
% 84.74/84.88     inference(scs_inference,[],[1857,1435])).
% 84.74/84.88  cnf(1955,plain,
% 84.74/84.88     (E(a4,a5)+~E(f2(a4,a4),f2(a4,a5))),
% 84.74/84.88     inference(scs_inference,[],[1858,2])).
% 84.74/84.88  cnf(1958,plain,
% 84.74/84.88     (~E(f2(a4,a4),f2(a4,a5))+E(f2(a5,x19581),f2(a4,x19581))),
% 84.74/84.88     inference(scs_inference,[],[1858,4])).
% 84.74/84.88  cnf(1959,plain,
% 84.74/84.88     (~E(f2(a4,a5),f2(a4,a4))+E(f2(a5,x19591),f2(a4,x19591))),
% 84.74/84.88     inference(scs_inference,[],[1958,2])).
% 84.74/84.88  cnf(1960,plain,
% 84.74/84.88     (~E(f2(a5,a4),f2(a4,a4))+E(f2(a5,x19601),f2(a4,x19601))),
% 84.74/84.88     inference(scs_inference,[],[13,1959,3])).
% 84.74/84.88  cnf(1961,plain,
% 84.74/84.88     (~E(f2(a4,a4),f2(a5,a4))+E(f2(a5,x19611),f2(a4,x19611))),
% 84.74/84.88     inference(scs_inference,[],[1960,2])).
% 84.74/84.88  cnf(2031,plain,
% 84.74/84.88     (~E(f2(a4,a4),f2(a4,a5))+E(f2(x20311,a5),f2(x20311,a4))),
% 84.74/84.88     inference(scs_inference,[],[1858,5])).
% 84.74/84.88  cnf(2032,plain,
% 84.74/84.88     (~E(f2(a4,a5),f2(a4,a4))+E(f2(x20321,a5),f2(x20321,a4))),
% 84.74/84.88     inference(scs_inference,[],[2031,2])).
% 84.74/84.88  cnf(2033,plain,
% 84.74/84.88     (~E(f2(a5,a4),f2(a4,a4))+E(f2(x20331,a5),f2(x20331,a4))),
% 84.74/84.88     inference(scs_inference,[],[13,2032,3])).
% 84.74/84.88  cnf(2034,plain,
% 84.74/84.88     (~E(f2(a4,a4),f2(a5,a4))+E(f2(x20341,a5),f2(x20341,a4))),
% 84.74/84.88     inference(scs_inference,[],[2033,1961])).
% 84.74/84.88  cnf(2035,plain,
% 84.74/84.88     (~E(a4,a5)+E(f2(x20351,a5),f2(x20351,a4))),
% 84.74/84.88     inference(scs_inference,[],[2034,4])).
% 84.74/84.88  cnf(2036,plain,
% 84.74/84.88     (E(f2(x20361,a5),f2(x20361,a4))+~E(f7(f2(a5,a4),a6),f8(a5))),
% 84.74/84.88     inference(scs_inference,[],[1390,2035,22])).
% 84.74/84.88  cnf(2037,plain,
% 84.74/84.88     (~E(f8(a5),f7(f2(a5,a4),a6))+E(f2(x20371,a5),f2(x20371,a4))),
% 84.74/84.89     inference(scs_inference,[],[2036,2])).
% 84.74/84.89  cnf(2038,plain,
% 84.74/84.89     (~E(x20381,f7(f2(a5,a4),a6))+~E(f8(a5),x20381)+E(f2(x20382,a5),f2(x20382,a4))),
% 84.74/84.89     inference(scs_inference,[],[2037,3])).
% 84.74/84.89  cnf(2039,plain,
% 84.74/84.89     (~E(f8(a5),f7(f2(a4,a5),a6))+E(f2(x20391,a5),f2(x20391,a4))),
% 84.74/84.89     inference(scs_inference,[],[13,2038,7])).
% 84.74/84.89  cnf(2040,plain,
% 84.74/84.89     (~E(f7(f2(a4,a5),a6),f8(a5))+E(f2(x20401,a5),f2(x20401,a4))),
% 84.74/84.89     inference(scs_inference,[],[2039,2])).
% 84.74/84.89  cnf(2079,plain,
% 84.74/84.89     (~E(f8(a5),f7(f2(a5,a4),a6))+~E(f2(a4,a4),f2(a4,a5))),
% 84.74/84.89     inference(scs_inference,[],[1858,1447])).
% 84.74/84.89  cnf(2080,plain,
% 84.74/84.89     (~E(f7(f2(a5,a4),a6),f8(a5))+~E(f2(a4,a4),f2(a4,a5))),
% 84.74/84.89     inference(scs_inference,[],[2079,2])).
% 84.74/84.89  cnf(2081,plain,
% 84.74/84.89     (~E(a4,a5)+~E(f2(a4,a4),f2(a4,a5))),
% 84.74/84.89     inference(scs_inference,[],[2080,1846])).
% 84.74/84.89  cnf(2082,plain,
% 84.74/84.89     (~E(f2(a4,a4),f2(a4,a5))),
% 84.74/84.89     inference(scs_inference,[],[2081,1955])).
% 84.74/84.89  cnf(2085,plain,
% 84.74/84.89     (~E(f2(a4,a4),f2(a5,a4))),
% 84.74/84.89     inference(scs_inference,[],[2082,2,5,2034])).
% 84.74/84.89  cnf(2099,plain,
% 84.74/84.89     (~E(a5,a4)),
% 84.74/84.89     inference(scs_inference,[],[2082,2,5,2034,2036,2040,2033,2037,2039,18,1845])).
% 84.74/84.89  cnf(2128,plain,
% 84.74/84.89     (~E(x21281,a4)+~E(a5,x21281)),
% 84.74/84.89     inference(scs_inference,[],[2099,3])).
% 84.74/84.89  cnf(2235,plain,
% 84.74/84.89     (P2(a5,x22351)+~E(x22352,a4)+~E(f7(f2(x22352,a5),x22351),f8(x22352))),
% 84.74/84.89     inference(scs_inference,[],[2128,22])).
% 84.74/84.89  cnf(2236,plain,
% 84.74/84.89     (P2(a5,a6)),
% 84.74/84.89     inference(scs_inference,[],[2085,2235,348])).
% 84.74/84.89  cnf(2252,plain,
% 84.74/84.89     (~E(f7(f2(a4,a5),a6),f8(a4))),
% 84.74/84.89     inference(scs_inference,[],[2236,1392])).
% 84.74/84.89  cnf(2274,plain,
% 84.74/84.89     (E(f7(f2(a4,a5),a6),f8(a4))),
% 84.74/84.89     inference(scs_inference,[],[2236,23,15,280,1395])).
% 84.74/84.89  cnf(2283,plain,
% 84.74/84.89     ($false),
% 84.74/84.89     inference(scs_inference,[],[2252,2274]),
% 84.74/84.89     ['proof']).
% 84.74/84.89  % SZS output end Proof
% 84.74/84.89  % Total time :84.250000s
%------------------------------------------------------------------------------