TSTP Solution File: LCL374-1 by CSE_E---1.5

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : CSE_E---1.5
% Problem  : LCL374-1 : TPTP v8.1.2. Released v2.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s

% Computer : n013.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 06:53:45 EDT 2023

% Result   : Unsatisfiable 10.27s 10.45s
% Output   : CNFRefutation 10.35s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   33
%            Number of leaves      :   12
% Syntax   : Number of formulae    :  108 (  46 unt;   7 typ;   0 def)
%            Number of atoms       :  172 (   0 equ)
%            Maximal formula atoms :    3 (   1 avg)
%            Number of connectives :  147 (  76   ~;  71   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    4 (   2 avg)
%            Maximal term depth    :    7 (   2 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    4 (   3   >;   1   *;   0   +;   0  <<)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-1 aty)
%            Number of functors    :    6 (   6 usr;   4 con; 0-2 aty)
%            Number of variables   :  263 (  80 sgn;   0   !;   0   ?;   0   :)

% Comments : 
%------------------------------------------------------------------------------
tff(decl_22,type,
    implies: ( $i * $i ) > $i ).

tff(decl_23,type,
    is_a_theorem: $i > $o ).

tff(decl_24,type,
    not: $i > $i ).

tff(decl_25,type,
    x: $i ).

tff(decl_26,type,
    y: $i ).

tff(decl_27,type,
    z: $i ).

tff(decl_28,type,
    u: $i ).

cnf(condensed_detachment,axiom,
    ( is_a_theorem(X2)
    | ~ is_a_theorem(implies(X1,X2))
    | ~ is_a_theorem(X1) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',condensed_detachment) ).

cnf(cn_1,axiom,
    is_a_theorem(implies(implies(X1,X2),implies(implies(X2,X3),implies(X1,X3)))),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cn_1) ).

cnf(cn_2,axiom,
    is_a_theorem(implies(implies(not(X1),X1),X1)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cn_2) ).

cnf(cn_3,axiom,
    is_a_theorem(implies(X1,implies(not(X1),X2))),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cn_3) ).

cnf(prove_cn_31,negated_conjecture,
    ~ is_a_theorem(implies(implies(x,y),implies(implies(implies(x,z),u),implies(implies(y,u),u)))),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_cn_31) ).

cnf(c_0_5,axiom,
    ( is_a_theorem(X2)
    | ~ is_a_theorem(implies(X1,X2))
    | ~ is_a_theorem(X1) ),
    condensed_detachment ).

cnf(c_0_6,axiom,
    is_a_theorem(implies(implies(X1,X2),implies(implies(X2,X3),implies(X1,X3)))),
    cn_1 ).

cnf(c_0_7,plain,
    ( is_a_theorem(implies(implies(X1,X2),implies(X3,X2)))
    | ~ is_a_theorem(implies(X3,X1)) ),
    inference(spm,[status(thm)],[c_0_5,c_0_6]) ).

cnf(c_0_8,plain,
    ( is_a_theorem(implies(X1,X2))
    | ~ is_a_theorem(implies(X3,X2))
    | ~ is_a_theorem(implies(X1,X3)) ),
    inference(spm,[status(thm)],[c_0_5,c_0_7]) ).

cnf(c_0_9,axiom,
    is_a_theorem(implies(implies(not(X1),X1),X1)),
    cn_2 ).

cnf(c_0_10,plain,
    ( is_a_theorem(implies(X1,implies(X2,X3)))
    | ~ is_a_theorem(implies(X1,implies(X4,X3)))
    | ~ is_a_theorem(implies(X2,X4)) ),
    inference(spm,[status(thm)],[c_0_8,c_0_7]) ).

cnf(c_0_11,axiom,
    is_a_theorem(implies(X1,implies(not(X1),X2))),
    cn_3 ).

cnf(c_0_12,plain,
    ( is_a_theorem(implies(X1,X2))
    | ~ is_a_theorem(implies(X1,implies(not(X2),X2))) ),
    inference(spm,[status(thm)],[c_0_8,c_0_9]) ).

cnf(c_0_13,plain,
    ( is_a_theorem(implies(X1,implies(X2,X3)))
    | ~ is_a_theorem(implies(X2,not(X1))) ),
    inference(spm,[status(thm)],[c_0_10,c_0_11]) ).

cnf(c_0_14,plain,
    ( is_a_theorem(implies(X1,implies(not(X2),X3)))
    | ~ is_a_theorem(implies(X1,X2)) ),
    inference(spm,[status(thm)],[c_0_8,c_0_11]) ).

cnf(c_0_15,plain,
    ( is_a_theorem(implies(X1,X2))
    | ~ is_a_theorem(implies(not(X2),not(X1))) ),
    inference(spm,[status(thm)],[c_0_12,c_0_13]) ).

cnf(c_0_16,plain,
    ( is_a_theorem(implies(not(X1),X2))
    | ~ is_a_theorem(X1) ),
    inference(spm,[status(thm)],[c_0_5,c_0_11]) ).

cnf(c_0_17,plain,
    ( is_a_theorem(implies(not(X1),X2))
    | ~ is_a_theorem(implies(X3,X1))
    | ~ is_a_theorem(X3) ),
    inference(spm,[status(thm)],[c_0_5,c_0_14]) ).

cnf(c_0_18,plain,
    ( is_a_theorem(implies(X1,implies(not(X2),X3)))
    | ~ is_a_theorem(implies(X1,X4))
    | ~ is_a_theorem(implies(X4,X2)) ),
    inference(spm,[status(thm)],[c_0_8,c_0_14]) ).

cnf(c_0_19,plain,
    ( is_a_theorem(implies(X1,X2))
    | ~ is_a_theorem(X2) ),
    inference(spm,[status(thm)],[c_0_15,c_0_16]) ).

cnf(c_0_20,plain,
    ( is_a_theorem(implies(not(implies(X1,X2)),X3))
    | ~ is_a_theorem(implies(X4,X2))
    | ~ is_a_theorem(implies(X1,X4)) ),
    inference(spm,[status(thm)],[c_0_17,c_0_7]) ).

cnf(c_0_21,plain,
    ( is_a_theorem(implies(X1,implies(not(X2),X3)))
    | ~ is_a_theorem(implies(implies(not(X1),X4),X2)) ),
    inference(spm,[status(thm)],[c_0_18,c_0_11]) ).

cnf(c_0_22,plain,
    is_a_theorem(implies(implies(not(implies(not(X1),X1)),implies(not(X1),X1)),X1)),
    inference(spm,[status(thm)],[c_0_12,c_0_9]) ).

cnf(c_0_23,plain,
    ( is_a_theorem(implies(X1,implies(X2,X3)))
    | ~ is_a_theorem(implies(X2,X4))
    | ~ is_a_theorem(implies(X4,X3)) ),
    inference(spm,[status(thm)],[c_0_10,c_0_19]) ).

cnf(c_0_24,plain,
    is_a_theorem(implies(X1,X1)),
    inference(spm,[status(thm)],[c_0_12,c_0_11]) ).

cnf(c_0_25,plain,
    ( is_a_theorem(implies(not(implies(X1,X2)),X3))
    | ~ is_a_theorem(implies(X1,implies(not(X2),X2))) ),
    inference(spm,[status(thm)],[c_0_20,c_0_9]) ).

cnf(c_0_26,plain,
    is_a_theorem(implies(implies(not(X1),X1),implies(not(X1),X2))),
    inference(spm,[status(thm)],[c_0_21,c_0_22]) ).

cnf(c_0_27,plain,
    ( is_a_theorem(X1)
    | ~ is_a_theorem(implies(not(X1),X1)) ),
    inference(spm,[status(thm)],[c_0_5,c_0_9]) ).

cnf(c_0_28,plain,
    ( is_a_theorem(implies(X1,implies(implies(X2,X3),implies(X4,X3))))
    | ~ is_a_theorem(implies(X1,implies(X4,X2))) ),
    inference(spm,[status(thm)],[c_0_8,c_0_6]) ).

cnf(c_0_29,plain,
    ( is_a_theorem(implies(X1,implies(X2,X3)))
    | ~ is_a_theorem(implies(X4,X3))
    | ~ is_a_theorem(X4) ),
    inference(spm,[status(thm)],[c_0_23,c_0_19]) ).

cnf(c_0_30,plain,
    is_a_theorem(implies(X1,implies(not(implies(not(X1),X2)),X3))),
    inference(spm,[status(thm)],[c_0_21,c_0_24]) ).

cnf(c_0_31,plain,
    ( is_a_theorem(implies(implies(X1,X2),implies(X3,implies(X1,X4))))
    | ~ is_a_theorem(implies(X3,implies(X2,X4))) ),
    inference(spm,[status(thm)],[c_0_10,c_0_6]) ).

cnf(c_0_32,plain,
    is_a_theorem(implies(not(implies(implies(not(X1),X1),X1)),X2)),
    inference(spm,[status(thm)],[c_0_25,c_0_26]) ).

cnf(c_0_33,plain,
    ( is_a_theorem(implies(implies(X1,X2),implies(X3,X2)))
    | ~ is_a_theorem(implies(not(implies(implies(X1,X2),implies(X3,X2))),implies(X3,X1))) ),
    inference(spm,[status(thm)],[c_0_27,c_0_28]) ).

cnf(c_0_34,plain,
    ( is_a_theorem(implies(X1,implies(X2,X3)))
    | ~ is_a_theorem(implies(not(X3),X3)) ),
    inference(spm,[status(thm)],[c_0_29,c_0_9]) ).

cnf(c_0_35,plain,
    is_a_theorem(implies(not(implies(X1,implies(not(X1),X2))),X3)),
    inference(spm,[status(thm)],[c_0_25,c_0_30]) ).

cnf(c_0_36,plain,
    ( is_a_theorem(implies(implies(X1,X2),implies(X1,X3)))
    | ~ is_a_theorem(implies(not(implies(X1,X3)),implies(X2,X3))) ),
    inference(spm,[status(thm)],[c_0_12,c_0_31]) ).

cnf(c_0_37,plain,
    is_a_theorem(implies(X1,implies(implies(not(X2),X2),X2))),
    inference(spm,[status(thm)],[c_0_15,c_0_32]) ).

cnf(c_0_38,plain,
    ( is_a_theorem(implies(implies(X1,X2),implies(X3,X2)))
    | ~ is_a_theorem(implies(not(X1),X1)) ),
    inference(spm,[status(thm)],[c_0_33,c_0_34]) ).

cnf(c_0_39,plain,
    is_a_theorem(implies(not(implies(X1,X1)),X2)),
    inference(spm,[status(thm)],[c_0_25,c_0_11]) ).

cnf(c_0_40,plain,
    ( is_a_theorem(implies(implies(X1,X2),X2))
    | ~ is_a_theorem(implies(not(X2),X1)) ),
    inference(spm,[status(thm)],[c_0_12,c_0_7]) ).

cnf(c_0_41,plain,
    is_a_theorem(implies(X1,implies(X2,implies(not(X2),X3)))),
    inference(spm,[status(thm)],[c_0_15,c_0_35]) ).

cnf(c_0_42,plain,
    ( is_a_theorem(implies(X1,implies(implies(X2,X3),X4)))
    | ~ is_a_theorem(implies(implies(implies(X3,X5),implies(X2,X5)),X4)) ),
    inference(spm,[status(thm)],[c_0_23,c_0_6]) ).

cnf(c_0_43,plain,
    is_a_theorem(implies(implies(X1,implies(not(X2),X2)),implies(X1,X2))),
    inference(spm,[status(thm)],[c_0_36,c_0_37]) ).

cnf(c_0_44,plain,
    ( is_a_theorem(implies(implies(X1,X2),implies(not(X3),X4)))
    | ~ is_a_theorem(implies(implies(implies(X2,X5),implies(X1,X5)),X3)) ),
    inference(spm,[status(thm)],[c_0_18,c_0_6]) ).

cnf(c_0_45,plain,
    is_a_theorem(implies(implies(implies(X1,X1),X2),implies(X3,X2))),
    inference(spm,[status(thm)],[c_0_38,c_0_39]) ).

cnf(c_0_46,plain,
    ( is_a_theorem(X1)
    | ~ is_a_theorem(implies(not(X1),X2))
    | ~ is_a_theorem(implies(X2,X1)) ),
    inference(spm,[status(thm)],[c_0_5,c_0_40]) ).

cnf(c_0_47,plain,
    ( is_a_theorem(implies(X1,implies(X2,X3)))
    | ~ is_a_theorem(X3) ),
    inference(spm,[status(thm)],[c_0_29,c_0_24]) ).

cnf(c_0_48,plain,
    is_a_theorem(implies(implies(implies(not(X1),X2),X3),implies(X1,X3))),
    inference(spm,[status(thm)],[c_0_33,c_0_41]) ).

cnf(c_0_49,plain,
    is_a_theorem(implies(X1,implies(implies(not(X2),X3),implies(implies(X3,X2),X2)))),
    inference(spm,[status(thm)],[c_0_42,c_0_43]) ).

cnf(c_0_50,plain,
    is_a_theorem(implies(implies(X1,X2),implies(not(implies(X3,implies(X1,X2))),X4))),
    inference(spm,[status(thm)],[c_0_44,c_0_45]) ).

cnf(c_0_51,plain,
    ( is_a_theorem(X1)
    | ~ is_a_theorem(implies(implies(X2,X3),X1))
    | ~ is_a_theorem(X3) ),
    inference(spm,[status(thm)],[c_0_46,c_0_47]) ).

cnf(c_0_52,plain,
    ( is_a_theorem(implies(X1,X2))
    | ~ is_a_theorem(implies(implies(not(X1),X3),X2)) ),
    inference(spm,[status(thm)],[c_0_5,c_0_48]) ).

cnf(c_0_53,plain,
    is_a_theorem(implies(implies(not(X1),X2),implies(implies(X2,X1),X1))),
    inference(spm,[status(thm)],[c_0_27,c_0_49]) ).

cnf(c_0_54,plain,
    is_a_theorem(implies(implies(X1,X2),implies(X3,implies(X1,X2)))),
    inference(spm,[status(thm)],[c_0_12,c_0_50]) ).

cnf(c_0_55,plain,
    ( is_a_theorem(implies(X1,implies(X2,X3)))
    | ~ is_a_theorem(implies(X1,implies(X4,X3)))
    | ~ is_a_theorem(X4) ),
    inference(spm,[status(thm)],[c_0_51,c_0_31]) ).

cnf(c_0_56,plain,
    is_a_theorem(implies(X1,implies(implies(X2,X1),X1))),
    inference(spm,[status(thm)],[c_0_52,c_0_53]) ).

cnf(c_0_57,plain,
    is_a_theorem(implies(X1,implies(not(implies(X2,implies(not(X1),X3))),X4))),
    inference(spm,[status(thm)],[c_0_21,c_0_54]) ).

cnf(c_0_58,plain,
    ( is_a_theorem(implies(implies(X1,X2),implies(X3,X2)))
    | ~ is_a_theorem(X1) ),
    inference(spm,[status(thm)],[c_0_51,c_0_6]) ).

cnf(c_0_59,plain,
    ( is_a_theorem(implies(X1,implies(X2,X1)))
    | ~ is_a_theorem(implies(X3,X1)) ),
    inference(spm,[status(thm)],[c_0_55,c_0_56]) ).

cnf(c_0_60,plain,
    is_a_theorem(implies(not(implies(X1,implies(X2,implies(not(X1),X3)))),X4)),
    inference(spm,[status(thm)],[c_0_25,c_0_57]) ).

cnf(c_0_61,plain,
    ( is_a_theorem(implies(not(implies(X1,implies(X2,X3))),X4))
    | ~ is_a_theorem(implies(X1,implies(X5,X3)))
    | ~ is_a_theorem(X5) ),
    inference(spm,[status(thm)],[c_0_20,c_0_58]) ).

cnf(c_0_62,plain,
    is_a_theorem(implies(X1,implies(X2,X1))),
    inference(spm,[status(thm)],[c_0_59,c_0_60]) ).

cnf(c_0_63,plain,
    ( is_a_theorem(implies(not(implies(X1,implies(X2,X1))),X3))
    | ~ is_a_theorem(X4) ),
    inference(spm,[status(thm)],[c_0_61,c_0_62]) ).

cnf(c_0_64,plain,
    ( is_a_theorem(implies(not(implies(X1,X2)),X3))
    | ~ is_a_theorem(implies(not(X2),not(X1))) ),
    inference(spm,[status(thm)],[c_0_25,c_0_13]) ).

cnf(c_0_65,plain,
    is_a_theorem(implies(not(implies(X1,implies(X2,X1))),X3)),
    inference(spm,[status(thm)],[c_0_63,c_0_60]) ).

cnf(c_0_66,plain,
    ( is_a_theorem(implies(X1,implies(X2,X3)))
    | ~ is_a_theorem(implies(not(X3),not(X2))) ),
    inference(spm,[status(thm)],[c_0_15,c_0_64]) ).

cnf(c_0_67,plain,
    is_a_theorem(implies(X1,implies(X2,implies(X3,X2)))),
    inference(spm,[status(thm)],[c_0_15,c_0_65]) ).

cnf(c_0_68,plain,
    ( is_a_theorem(implies(implies(X1,X2),implies(X3,X2)))
    | ~ is_a_theorem(implies(not(X1),not(X3))) ),
    inference(spm,[status(thm)],[c_0_33,c_0_66]) ).

cnf(c_0_69,plain,
    is_a_theorem(implies(implies(implies(X1,X2),X3),implies(X2,X3))),
    inference(spm,[status(thm)],[c_0_33,c_0_67]) ).

cnf(c_0_70,plain,
    is_a_theorem(implies(implies(X1,not(not(implies(X1,X2)))),implies(X1,X2))),
    inference(spm,[status(thm)],[c_0_36,c_0_11]) ).

cnf(c_0_71,plain,
    ( is_a_theorem(implies(X1,X2))
    | ~ is_a_theorem(implies(X1,implies(not(implies(not(X2),X2)),implies(not(X2),X2)))) ),
    inference(spm,[status(thm)],[c_0_8,c_0_22]) ).

cnf(c_0_72,plain,
    ( is_a_theorem(implies(X1,implies(not(implies(X2,X3)),X4)))
    | ~ is_a_theorem(implies(not(not(X1)),not(X2))) ),
    inference(spm,[status(thm)],[c_0_21,c_0_68]) ).

cnf(c_0_73,plain,
    ( is_a_theorem(implies(X1,X2))
    | ~ is_a_theorem(implies(implies(X3,X1),X2)) ),
    inference(spm,[status(thm)],[c_0_5,c_0_69]) ).

cnf(c_0_74,plain,
    is_a_theorem(implies(implies(not(X1),not(not(implies(not(X1),X1)))),X1)),
    inference(spm,[status(thm)],[c_0_12,c_0_70]) ).

cnf(c_0_75,plain,
    ( is_a_theorem(implies(X1,X2))
    | ~ is_a_theorem(implies(not(not(X1)),not(not(X2)))) ),
    inference(spm,[status(thm)],[c_0_71,c_0_72]) ).

cnf(c_0_76,plain,
    is_a_theorem(implies(not(not(implies(not(X1),X1))),X1)),
    inference(spm,[status(thm)],[c_0_73,c_0_74]) ).

cnf(c_0_77,plain,
    is_a_theorem(implies(implies(not(not(not(X1))),not(not(X1))),X1)),
    inference(spm,[status(thm)],[c_0_75,c_0_76]) ).

cnf(c_0_78,plain,
    is_a_theorem(implies(not(not(X1)),X1)),
    inference(spm,[status(thm)],[c_0_52,c_0_77]) ).

cnf(c_0_79,plain,
    ( is_a_theorem(implies(X1,implies(X2,X3)))
    | ~ is_a_theorem(implies(X4,not(X1)))
    | ~ is_a_theorem(implies(X2,X4)) ),
    inference(spm,[status(thm)],[c_0_10,c_0_13]) ).

cnf(c_0_80,plain,
    is_a_theorem(implies(X1,not(not(X1)))),
    inference(spm,[status(thm)],[c_0_15,c_0_78]) ).

cnf(c_0_81,plain,
    ( is_a_theorem(implies(not(X1),implies(X2,X3)))
    | ~ is_a_theorem(implies(X2,X1)) ),
    inference(spm,[status(thm)],[c_0_79,c_0_80]) ).

cnf(c_0_82,plain,
    ( is_a_theorem(implies(X1,X2))
    | ~ is_a_theorem(implies(X1,implies(X3,X2)))
    | ~ is_a_theorem(implies(not(X2),X3)) ),
    inference(spm,[status(thm)],[c_0_8,c_0_40]) ).

cnf(c_0_83,plain,
    ( is_a_theorem(implies(implies(X1,X2),implies(X1,X3)))
    | ~ is_a_theorem(implies(X2,implies(X1,X3))) ),
    inference(spm,[status(thm)],[c_0_36,c_0_81]) ).

cnf(c_0_84,plain,
    is_a_theorem(implies(X1,implies(X2,not(not(X2))))),
    inference(spm,[status(thm)],[c_0_66,c_0_78]) ).

cnf(c_0_85,negated_conjecture,
    ~ is_a_theorem(implies(implies(x,y),implies(implies(implies(x,z),u),implies(implies(y,u),u)))),
    prove_cn_31 ).

cnf(c_0_86,plain,
    ( is_a_theorem(implies(implies(X1,X2),X3))
    | ~ is_a_theorem(implies(X2,implies(X1,X3)))
    | ~ is_a_theorem(implies(not(X3),X1)) ),
    inference(spm,[status(thm)],[c_0_82,c_0_83]) ).

cnf(c_0_87,plain,
    ( is_a_theorem(implies(implies(X1,X2),implies(X3,implies(X1,X4))))
    | ~ is_a_theorem(implies(X2,X4)) ),
    inference(spm,[status(thm)],[c_0_55,c_0_6]) ).

cnf(c_0_88,plain,
    ( is_a_theorem(implies(X1,implies(X2,X3)))
    | ~ is_a_theorem(implies(implies(not(X2),X4),X3)) ),
    inference(spm,[status(thm)],[c_0_23,c_0_11]) ).

cnf(c_0_89,plain,
    is_a_theorem(implies(implies(not(not(X1)),X2),implies(X1,X2))),
    inference(spm,[status(thm)],[c_0_33,c_0_84]) ).

cnf(c_0_90,negated_conjecture,
    ( ~ is_a_theorem(implies(y,implies(x,implies(implies(implies(x,z),u),implies(implies(y,u),u)))))
    | ~ is_a_theorem(implies(not(implies(implies(implies(x,z),u),implies(implies(y,u),u))),x)) ),
    inference(spm,[status(thm)],[c_0_85,c_0_86]) ).

cnf(c_0_91,plain,
    ( is_a_theorem(implies(X1,implies(X2,implies(X3,X4))))
    | ~ is_a_theorem(implies(X1,X4)) ),
    inference(spm,[status(thm)],[c_0_73,c_0_87]) ).

cnf(c_0_92,plain,
    is_a_theorem(implies(X1,implies(implies(X1,X2),X2))),
    inference(spm,[status(thm)],[c_0_73,c_0_53]) ).

cnf(c_0_93,plain,
    ( is_a_theorem(implies(X1,not(not(X2))))
    | ~ is_a_theorem(implies(X1,X2)) ),
    inference(spm,[status(thm)],[c_0_8,c_0_80]) ).

cnf(c_0_94,plain,
    is_a_theorem(implies(X1,implies(not(X2),implies(X2,X3)))),
    inference(spm,[status(thm)],[c_0_88,c_0_89]) ).

cnf(c_0_95,negated_conjecture,
    ~ is_a_theorem(implies(not(implies(implies(implies(x,z),u),implies(implies(y,u),u))),x)),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_90,c_0_91]),c_0_92])]) ).

cnf(c_0_96,plain,
    ( is_a_theorem(implies(not(X1),X2))
    | ~ is_a_theorem(implies(not(X2),X1)) ),
    inference(spm,[status(thm)],[c_0_15,c_0_93]) ).

cnf(c_0_97,plain,
    is_a_theorem(implies(implies(X1,not(X2)),implies(X1,implies(X2,X3)))),
    inference(spm,[status(thm)],[c_0_36,c_0_94]) ).

cnf(c_0_98,negated_conjecture,
    ~ is_a_theorem(implies(not(x),implies(implies(implies(x,z),u),implies(implies(y,u),u)))),
    inference(spm,[status(thm)],[c_0_95,c_0_96]) ).

cnf(c_0_99,plain,
    is_a_theorem(implies(not(X1),implies(X2,implies(X1,X3)))),
    inference(spm,[status(thm)],[c_0_73,c_0_97]) ).

cnf(c_0_100,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_98,c_0_28]),c_0_99])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem    : LCL374-1 : TPTP v8.1.2. Released v2.3.0.
% 0.10/0.12  % Command    : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s
% 0.10/0.32  % Computer : n013.cluster.edu
% 0.10/0.32  % Model    : x86_64 x86_64
% 0.10/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.32  % Memory   : 8042.1875MB
% 0.10/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.10/0.32  % CPULimit   : 300
% 0.10/0.32  % WCLimit    : 300
% 0.10/0.32  % DateTime   : Thu Aug 24 17:05:17 EDT 2023
% 0.10/0.32  % CPUTime  : 
% 0.14/0.53  start to proof: theBenchmark
% 10.27/10.45  % Version  : CSE_E---1.5
% 10.27/10.45  % Problem  : theBenchmark.p
% 10.27/10.45  % Proof found
% 10.27/10.45  % SZS status Theorem for theBenchmark.p
% 10.27/10.45  % SZS output start Proof
% See solution above
% 10.35/10.46  % Total time : 9.914000 s
% 10.35/10.46  % SZS output end Proof
% 10.35/10.46  % Total time : 9.916000 s
%------------------------------------------------------------------------------