TSTP Solution File: GRP124-4.004 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : GRP124-4.004 : TPTP v8.1.0. Bugfixed v1.2.1.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n015.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 : Sat Jul 16 10:36:34 EDT 2022

% Result   : Unsatisfiable 0.19s 0.40s
% Output   : CNFRefutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   25
%            Number of leaves      :   19
% Syntax   : Number of clauses     :  124 (  22 unt;  70 nHn; 120 RR)
%            Number of literals    :  374 (   0 equ;  94 neg)
%            Maximal clause size   :    6 (   3 avg)
%            Maximal term depth    :    1 (   1 avg)
%            Number of predicates  :    4 (   3 usr;   1 prp; 0-3 aty)
%            Number of functors    :    4 (   4 usr;   4 con; 0-0 aty)
%            Number of variables   :   52 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(row_surjectivity,axiom,
    ( ~ group_element(X)
    | ~ group_element(Y)
    | product(e_1,X,Y)
    | product(e_2,X,Y)
    | product(e_3,X,Y)
    | product(e_4,X,Y) ) ).

cnf(element_1,axiom,
    group_element(e_1) ).

cnf(element_2,axiom,
    group_element(e_2) ).

cnf(element_3,axiom,
    group_element(e_3) ).

cnf(element_4,axiom,
    group_element(e_4) ).

cnf(e_1_is_not_e_3,axiom,
    ~ equalish(e_1,e_3) ).

cnf(e_1_is_not_e_4,axiom,
    ~ equalish(e_1,e_4) ).

cnf(e_2_is_not_e_3,axiom,
    ~ equalish(e_2,e_3) ).

cnf(e_2_is_not_e_4,axiom,
    ~ equalish(e_2,e_4) ).

cnf(e_3_is_not_e_1,axiom,
    ~ equalish(e_3,e_1) ).

cnf(e_3_is_not_e_2,axiom,
    ~ equalish(e_3,e_2) ).

cnf(e_3_is_not_e_4,axiom,
    ~ equalish(e_3,e_4) ).

cnf(e_4_is_not_e_1,axiom,
    ~ equalish(e_4,e_1) ).

cnf(e_4_is_not_e_2,axiom,
    ~ equalish(e_4,e_2) ).

cnf(e_4_is_not_e_3,axiom,
    ~ equalish(e_4,e_3) ).

cnf(product_total_function2,axiom,
    ( ~ product(X,Y,W)
    | ~ product(X,Y,Z)
    | equalish(W,Z) ) ).

cnf(product_right_cancellation,axiom,
    ( ~ product(X,W,Y)
    | ~ product(X,Z,Y)
    | equalish(W,Z) ) ).

cnf(product_idempotence,axiom,
    product(X,X,X) ).

cnf(qg2_2,negated_conjecture,
    ( ~ product(X1,Y1,Z1)
    | ~ product(X2,Y2,Z1)
    | ~ product(Z2,X1,Y1)
    | ~ product(Z2,X2,Y2)
    | equalish(Y1,Y2) ) ).

cnf(refute_0_0,plain,
    product(X_17,X_17,X_17),
    inference(subst,[],[product_idempotence:[bind(X,$fot(X_17))]]) ).

cnf(refute_0_1,plain,
    ( ~ product(X_17,X_17,X_14)
    | ~ product(X_17,X_17,X_17)
    | equalish(X_14,X_17) ),
    inference(subst,[],[product_total_function2:[bind(W,$fot(X_14)),bind(X,$fot(X_17)),bind(Y,$fot(X_17)),bind(Z,$fot(X_17))]]) ).

cnf(refute_0_2,plain,
    ( ~ product(X_17,X_17,X_14)
    | equalish(X_14,X_17) ),
    inference(resolve,[$cnf( product(X_17,X_17,X_17) )],[refute_0_0,refute_0_1]) ).

cnf(refute_0_3,plain,
    ( ~ product(e_1,e_1,e_4)
    | equalish(e_4,e_1) ),
    inference(subst,[],[refute_0_2:[bind(X_14,$fot(e_4)),bind(X_17,$fot(e_1))]]) ).

cnf(refute_0_4,plain,
    ( ~ product(e_1,e_2,Z)
    | ~ product(e_1,e_2,e_3)
    | equalish(e_3,Z) ),
    inference(subst,[],[product_total_function2:[bind(W,$fot(e_3)),bind(X,$fot(e_1)),bind(Y,$fot(e_2))]]) ).

cnf(refute_0_5,plain,
    ( ~ product(e_1,Z,e_4)
    | ~ product(e_1,e_3,e_4)
    | equalish(e_3,Z) ),
    inference(subst,[],[product_right_cancellation:[bind(W,$fot(e_3)),bind(X,$fot(e_1)),bind(Y,$fot(e_4))]]) ).

cnf(refute_0_6,plain,
    ( ~ product(e_2,e_2,e_3)
    | equalish(e_3,e_2) ),
    inference(subst,[],[refute_0_2:[bind(X_14,$fot(e_3)),bind(X_17,$fot(e_2))]]) ).

cnf(refute_0_7,plain,
    product(X_24,X_24,X_24),
    inference(subst,[],[product_idempotence:[bind(X,$fot(X_24))]]) ).

cnf(refute_0_8,plain,
    ( ~ product(X_24,X_22,X_24)
    | ~ product(X_24,X_24,X_24)
    | equalish(X_22,X_24) ),
    inference(subst,[],[product_right_cancellation:[bind(W,$fot(X_22)),bind(X,$fot(X_24)),bind(Y,$fot(X_24)),bind(Z,$fot(X_24))]]) ).

cnf(refute_0_9,plain,
    ( ~ product(X_24,X_22,X_24)
    | equalish(X_22,X_24) ),
    inference(resolve,[$cnf( product(X_24,X_24,X_24) )],[refute_0_7,refute_0_8]) ).

cnf(refute_0_10,plain,
    ( ~ product(e_3,e_2,e_3)
    | equalish(e_2,e_3) ),
    inference(subst,[],[refute_0_9:[bind(X_22,$fot(e_2)),bind(X_24,$fot(e_3))]]) ).

cnf(refute_0_11,plain,
    ( ~ product(X1,Y1,Z2)
    | ~ product(Z2,X1,Y1)
    | ~ product(Z2,Z2,Z2)
    | equalish(Y1,Z2) ),
    inference(subst,[],[qg2_2:[bind(X2,$fot(Z2)),bind(Y2,$fot(Z2)),bind(Z1,$fot(Z2))]]) ).

cnf(refute_0_12,plain,
    product(Z2,Z2,Z2),
    inference(subst,[],[product_idempotence:[bind(X,$fot(Z2))]]) ).

cnf(refute_0_13,plain,
    ( ~ product(X1,Y1,Z2)
    | ~ product(Z2,X1,Y1)
    | equalish(Y1,Z2) ),
    inference(resolve,[$cnf( product(Z2,Z2,Z2) )],[refute_0_12,refute_0_11]) ).

cnf(refute_0_14,plain,
    ( ~ product(e_2,e_3,e_4)
    | ~ product(e_4,e_2,e_3)
    | equalish(e_3,e_4) ),
    inference(subst,[],[refute_0_13:[bind(X1,$fot(e_2)),bind(Y1,$fot(e_3)),bind(Z2,$fot(e_4))]]) ).

cnf(refute_0_15,plain,
    ( ~ group_element(X_42)
    | ~ group_element(e_2)
    | product(e_1,e_2,X_42)
    | product(e_2,e_2,X_42)
    | product(e_3,e_2,X_42)
    | product(e_4,e_2,X_42) ),
    inference(subst,[],[row_surjectivity:[bind(X,$fot(e_2)),bind(Y,$fot(X_42))]]) ).

cnf(refute_0_16,plain,
    ( ~ group_element(X_42)
    | product(e_1,e_2,X_42)
    | product(e_2,e_2,X_42)
    | product(e_3,e_2,X_42)
    | product(e_4,e_2,X_42) ),
    inference(resolve,[$cnf( group_element(e_2) )],[element_2,refute_0_15]) ).

cnf(refute_0_17,plain,
    ( ~ group_element(e_3)
    | product(e_1,e_2,e_3)
    | product(e_2,e_2,e_3)
    | product(e_3,e_2,e_3)
    | product(e_4,e_2,e_3) ),
    inference(subst,[],[refute_0_16:[bind(X_42,$fot(e_3))]]) ).

cnf(refute_0_18,plain,
    ( product(e_1,e_2,e_3)
    | product(e_2,e_2,e_3)
    | product(e_3,e_2,e_3)
    | product(e_4,e_2,e_3) ),
    inference(resolve,[$cnf( group_element(e_3) )],[element_3,refute_0_17]) ).

cnf(refute_0_19,plain,
    ( ~ product(e_2,e_3,e_4)
    | equalish(e_3,e_4)
    | product(e_1,e_2,e_3)
    | product(e_2,e_2,e_3)
    | product(e_3,e_2,e_3) ),
    inference(resolve,[$cnf( product(e_4,e_2,e_3) )],[refute_0_18,refute_0_14]) ).

cnf(refute_0_20,plain,
    ( ~ product(e_2,e_3,e_4)
    | product(e_1,e_2,e_3)
    | product(e_2,e_2,e_3)
    | product(e_3,e_2,e_3) ),
    inference(resolve,[$cnf( equalish(e_3,e_4) )],[refute_0_19,e_3_is_not_e_4]) ).

cnf(refute_0_21,plain,
    ( ~ product(e_3,e_3,e_4)
    | equalish(e_4,e_3) ),
    inference(subst,[],[refute_0_2:[bind(X_14,$fot(e_4)),bind(X_17,$fot(e_3))]]) ).

cnf(refute_0_22,plain,
    ( ~ product(e_4,e_3,e_4)
    | equalish(e_3,e_4) ),
    inference(subst,[],[refute_0_9:[bind(X_22,$fot(e_3)),bind(X_24,$fot(e_4))]]) ).

cnf(refute_0_23,plain,
    ( ~ group_element(X_42)
    | ~ group_element(e_3)
    | product(e_1,e_3,X_42)
    | product(e_2,e_3,X_42)
    | product(e_3,e_3,X_42)
    | product(e_4,e_3,X_42) ),
    inference(subst,[],[row_surjectivity:[bind(X,$fot(e_3)),bind(Y,$fot(X_42))]]) ).

cnf(refute_0_24,plain,
    ( ~ group_element(X_42)
    | product(e_1,e_3,X_42)
    | product(e_2,e_3,X_42)
    | product(e_3,e_3,X_42)
    | product(e_4,e_3,X_42) ),
    inference(resolve,[$cnf( group_element(e_3) )],[element_3,refute_0_23]) ).

cnf(refute_0_25,plain,
    ( ~ group_element(e_4)
    | product(e_1,e_3,e_4)
    | product(e_2,e_3,e_4)
    | product(e_3,e_3,e_4)
    | product(e_4,e_3,e_4) ),
    inference(subst,[],[refute_0_24:[bind(X_42,$fot(e_4))]]) ).

cnf(refute_0_26,plain,
    ( product(e_1,e_3,e_4)
    | product(e_2,e_3,e_4)
    | product(e_3,e_3,e_4)
    | product(e_4,e_3,e_4) ),
    inference(resolve,[$cnf( group_element(e_4) )],[element_4,refute_0_25]) ).

cnf(refute_0_27,plain,
    ( equalish(e_3,e_4)
    | product(e_1,e_3,e_4)
    | product(e_2,e_3,e_4)
    | product(e_3,e_3,e_4) ),
    inference(resolve,[$cnf( product(e_4,e_3,e_4) )],[refute_0_26,refute_0_22]) ).

cnf(refute_0_28,plain,
    ( product(e_1,e_3,e_4)
    | product(e_2,e_3,e_4)
    | product(e_3,e_3,e_4) ),
    inference(resolve,[$cnf( equalish(e_3,e_4) )],[refute_0_27,e_3_is_not_e_4]) ).

cnf(refute_0_29,plain,
    ( equalish(e_4,e_3)
    | product(e_1,e_3,e_4)
    | product(e_2,e_3,e_4) ),
    inference(resolve,[$cnf( product(e_3,e_3,e_4) )],[refute_0_28,refute_0_21]) ).

cnf(refute_0_30,plain,
    ( product(e_1,e_3,e_4)
    | product(e_2,e_3,e_4) ),
    inference(resolve,[$cnf( equalish(e_4,e_3) )],[refute_0_29,e_4_is_not_e_3]) ).

cnf(refute_0_31,plain,
    ( product(e_1,e_2,e_3)
    | product(e_1,e_3,e_4)
    | product(e_2,e_2,e_3)
    | product(e_3,e_2,e_3) ),
    inference(resolve,[$cnf( product(e_2,e_3,e_4) )],[refute_0_30,refute_0_20]) ).

cnf(refute_0_32,plain,
    ( equalish(e_2,e_3)
    | product(e_1,e_2,e_3)
    | product(e_1,e_3,e_4)
    | product(e_2,e_2,e_3) ),
    inference(resolve,[$cnf( product(e_3,e_2,e_3) )],[refute_0_31,refute_0_10]) ).

cnf(refute_0_33,plain,
    ( product(e_1,e_2,e_3)
    | product(e_1,e_3,e_4)
    | product(e_2,e_2,e_3) ),
    inference(resolve,[$cnf( equalish(e_2,e_3) )],[refute_0_32,e_2_is_not_e_3]) ).

cnf(refute_0_34,plain,
    ( equalish(e_3,e_2)
    | product(e_1,e_2,e_3)
    | product(e_1,e_3,e_4) ),
    inference(resolve,[$cnf( product(e_2,e_2,e_3) )],[refute_0_33,refute_0_6]) ).

cnf(refute_0_35,plain,
    ( product(e_1,e_2,e_3)
    | product(e_1,e_3,e_4) ),
    inference(resolve,[$cnf( equalish(e_3,e_2) )],[refute_0_34,e_3_is_not_e_2]) ).

cnf(refute_0_36,plain,
    ( ~ product(e_1,Z,e_4)
    | equalish(e_3,Z)
    | product(e_1,e_2,e_3) ),
    inference(resolve,[$cnf( product(e_1,e_3,e_4) )],[refute_0_35,refute_0_5]) ).

cnf(refute_0_37,plain,
    ( ~ product(e_1,e_2,e_4)
    | equalish(e_3,e_2)
    | product(e_1,e_2,e_3) ),
    inference(subst,[],[refute_0_36:[bind(Z,$fot(e_2))]]) ).

cnf(refute_0_38,plain,
    ( ~ product(e_1,e_3,Z)
    | ~ product(e_1,e_3,e_4)
    | equalish(e_4,Z) ),
    inference(subst,[],[product_total_function2:[bind(W,$fot(e_4)),bind(X,$fot(e_1)),bind(Y,$fot(e_3))]]) ).

cnf(refute_0_39,plain,
    ( ~ product(e_1,e_3,Z)
    | equalish(e_4,Z)
    | product(e_1,e_2,e_3) ),
    inference(resolve,[$cnf( product(e_1,e_3,e_4) )],[refute_0_35,refute_0_38]) ).

cnf(refute_0_40,plain,
    ( ~ product(e_1,e_3,e_2)
    | equalish(e_4,e_2)
    | product(e_1,e_2,e_3) ),
    inference(subst,[],[refute_0_39:[bind(Z,$fot(e_2))]]) ).

cnf(refute_0_41,plain,
    ( ~ product(e_2,e_2,e_4)
    | equalish(e_4,e_2) ),
    inference(subst,[],[refute_0_2:[bind(X_14,$fot(e_4)),bind(X_17,$fot(e_2))]]) ).

cnf(refute_0_42,plain,
    ( ~ product(e_2,e_3,e_2)
    | equalish(e_3,e_2) ),
    inference(subst,[],[refute_0_9:[bind(X_22,$fot(e_3)),bind(X_24,$fot(e_2))]]) ).

cnf(refute_0_43,plain,
    ( ~ product(e_3,e_3,e_2)
    | equalish(e_2,e_3) ),
    inference(subst,[],[refute_0_2:[bind(X_14,$fot(e_2)),bind(X_17,$fot(e_3))]]) ).

cnf(refute_0_44,plain,
    ( ~ product(e_4,e_2,e_4)
    | equalish(e_2,e_4) ),
    inference(subst,[],[refute_0_9:[bind(X_22,$fot(e_2)),bind(X_24,$fot(e_4))]]) ).

cnf(refute_0_45,plain,
    ( ~ group_element(e_4)
    | product(e_1,e_2,e_4)
    | product(e_2,e_2,e_4)
    | product(e_3,e_2,e_4)
    | product(e_4,e_2,e_4) ),
    inference(subst,[],[refute_0_16:[bind(X_42,$fot(e_4))]]) ).

cnf(refute_0_46,plain,
    ( product(e_1,e_2,e_4)
    | product(e_2,e_2,e_4)
    | product(e_3,e_2,e_4)
    | product(e_4,e_2,e_4) ),
    inference(resolve,[$cnf( group_element(e_4) )],[element_4,refute_0_45]) ).

cnf(refute_0_47,plain,
    ( equalish(e_2,e_4)
    | product(e_1,e_2,e_4)
    | product(e_2,e_2,e_4)
    | product(e_3,e_2,e_4) ),
    inference(resolve,[$cnf( product(e_4,e_2,e_4) )],[refute_0_46,refute_0_44]) ).

cnf(refute_0_48,plain,
    ( product(e_1,e_2,e_4)
    | product(e_2,e_2,e_4)
    | product(e_3,e_2,e_4) ),
    inference(resolve,[$cnf( equalish(e_2,e_4) )],[refute_0_47,e_2_is_not_e_4]) ).

cnf(refute_0_49,plain,
    ( ~ product(e_3,e_2,e_4)
    | ~ product(e_4,e_3,e_2)
    | equalish(e_2,e_4) ),
    inference(subst,[],[refute_0_13:[bind(X1,$fot(e_3)),bind(Y1,$fot(e_2)),bind(Z2,$fot(e_4))]]) ).

cnf(refute_0_50,plain,
    ( ~ group_element(e_2)
    | product(e_1,e_3,e_2)
    | product(e_2,e_3,e_2)
    | product(e_3,e_3,e_2)
    | product(e_4,e_3,e_2) ),
    inference(subst,[],[refute_0_24:[bind(X_42,$fot(e_2))]]) ).

cnf(refute_0_51,plain,
    ( product(e_1,e_3,e_2)
    | product(e_2,e_3,e_2)
    | product(e_3,e_3,e_2)
    | product(e_4,e_3,e_2) ),
    inference(resolve,[$cnf( group_element(e_2) )],[element_2,refute_0_50]) ).

cnf(refute_0_52,plain,
    ( ~ product(e_3,e_2,e_4)
    | equalish(e_2,e_4)
    | product(e_1,e_3,e_2)
    | product(e_2,e_3,e_2)
    | product(e_3,e_3,e_2) ),
    inference(resolve,[$cnf( product(e_4,e_3,e_2) )],[refute_0_51,refute_0_49]) ).

cnf(refute_0_53,plain,
    ( ~ product(e_3,e_2,e_4)
    | product(e_1,e_3,e_2)
    | product(e_2,e_3,e_2)
    | product(e_3,e_3,e_2) ),
    inference(resolve,[$cnf( equalish(e_2,e_4) )],[refute_0_52,e_2_is_not_e_4]) ).

cnf(refute_0_54,plain,
    ( product(e_1,e_2,e_4)
    | product(e_1,e_3,e_2)
    | product(e_2,e_2,e_4)
    | product(e_2,e_3,e_2)
    | product(e_3,e_3,e_2) ),
    inference(resolve,[$cnf( product(e_3,e_2,e_4) )],[refute_0_48,refute_0_53]) ).

cnf(refute_0_55,plain,
    ( equalish(e_2,e_3)
    | product(e_1,e_2,e_4)
    | product(e_1,e_3,e_2)
    | product(e_2,e_2,e_4)
    | product(e_2,e_3,e_2) ),
    inference(resolve,[$cnf( product(e_3,e_3,e_2) )],[refute_0_54,refute_0_43]) ).

cnf(refute_0_56,plain,
    ( product(e_1,e_2,e_4)
    | product(e_1,e_3,e_2)
    | product(e_2,e_2,e_4)
    | product(e_2,e_3,e_2) ),
    inference(resolve,[$cnf( equalish(e_2,e_3) )],[refute_0_55,e_2_is_not_e_3]) ).

cnf(refute_0_57,plain,
    ( equalish(e_3,e_2)
    | product(e_1,e_2,e_4)
    | product(e_1,e_3,e_2)
    | product(e_2,e_2,e_4) ),
    inference(resolve,[$cnf( product(e_2,e_3,e_2) )],[refute_0_56,refute_0_42]) ).

cnf(refute_0_58,plain,
    ( product(e_1,e_2,e_4)
    | product(e_1,e_3,e_2)
    | product(e_2,e_2,e_4) ),
    inference(resolve,[$cnf( equalish(e_3,e_2) )],[refute_0_57,e_3_is_not_e_2]) ).

cnf(refute_0_59,plain,
    ( equalish(e_4,e_2)
    | product(e_1,e_2,e_4)
    | product(e_1,e_3,e_2) ),
    inference(resolve,[$cnf( product(e_2,e_2,e_4) )],[refute_0_58,refute_0_41]) ).

cnf(refute_0_60,plain,
    ( product(e_1,e_2,e_4)
    | product(e_1,e_3,e_2) ),
    inference(resolve,[$cnf( equalish(e_4,e_2) )],[refute_0_59,e_4_is_not_e_2]) ).

cnf(refute_0_61,plain,
    ( equalish(e_4,e_2)
    | product(e_1,e_2,e_3)
    | product(e_1,e_2,e_4) ),
    inference(resolve,[$cnf( product(e_1,e_3,e_2) )],[refute_0_60,refute_0_40]) ).

cnf(refute_0_62,plain,
    ( product(e_1,e_2,e_3)
    | product(e_1,e_2,e_4) ),
    inference(resolve,[$cnf( equalish(e_4,e_2) )],[refute_0_61,e_4_is_not_e_2]) ).

cnf(refute_0_63,plain,
    ( equalish(e_3,e_2)
    | product(e_1,e_2,e_3) ),
    inference(resolve,[$cnf( product(e_1,e_2,e_4) )],[refute_0_62,refute_0_37]) ).

cnf(refute_0_64,plain,
    product(e_1,e_2,e_3),
    inference(resolve,[$cnf( equalish(e_3,e_2) )],[refute_0_63,e_3_is_not_e_2]) ).

cnf(refute_0_65,plain,
    ( ~ product(e_1,e_2,Z)
    | equalish(e_3,Z) ),
    inference(resolve,[$cnf( product(e_1,e_2,e_3) )],[refute_0_64,refute_0_4]) ).

cnf(refute_0_66,plain,
    ( ~ product(e_1,e_2,e_4)
    | equalish(e_3,e_4) ),
    inference(subst,[],[refute_0_65:[bind(Z,$fot(e_4))]]) ).

cnf(refute_0_67,plain,
    ( ~ product(e_1,e_3,e_1)
    | equalish(e_3,e_1) ),
    inference(subst,[],[refute_0_9:[bind(X_22,$fot(e_3)),bind(X_24,$fot(e_1))]]) ).

cnf(refute_0_68,plain,
    ( ~ product(e_2,Z,e_4)
    | ~ product(e_2,e_3,e_4)
    | equalish(e_3,Z) ),
    inference(subst,[],[product_right_cancellation:[bind(W,$fot(e_3)),bind(X,$fot(e_2)),bind(Y,$fot(e_4))]]) ).

cnf(refute_0_69,plain,
    ( ~ product(e_2,Z,e_4)
    | equalish(e_3,Z)
    | product(e_1,e_3,e_4) ),
    inference(resolve,[$cnf( product(e_2,e_3,e_4) )],[refute_0_30,refute_0_68]) ).

cnf(refute_0_70,plain,
    ( ~ product(e_2,e_1,e_4)
    | equalish(e_3,e_1)
    | product(e_1,e_3,e_4) ),
    inference(subst,[],[refute_0_69:[bind(Z,$fot(e_1))]]) ).

cnf(refute_0_71,plain,
    ( ~ product(e_2,e_3,Z)
    | ~ product(e_2,e_3,e_4)
    | equalish(e_4,Z) ),
    inference(subst,[],[product_total_function2:[bind(W,$fot(e_4)),bind(X,$fot(e_2)),bind(Y,$fot(e_3))]]) ).

cnf(refute_0_72,plain,
    ( ~ product(e_2,e_3,Z)
    | equalish(e_4,Z)
    | product(e_1,e_3,e_4) ),
    inference(resolve,[$cnf( product(e_2,e_3,e_4) )],[refute_0_30,refute_0_71]) ).

cnf(refute_0_73,plain,
    ( ~ product(e_2,e_3,e_1)
    | equalish(e_4,e_1)
    | product(e_1,e_3,e_4) ),
    inference(subst,[],[refute_0_72:[bind(Z,$fot(e_1))]]) ).

cnf(refute_0_74,plain,
    ( ~ product(e_3,e_3,e_1)
    | equalish(e_1,e_3) ),
    inference(subst,[],[refute_0_2:[bind(X_14,$fot(e_1)),bind(X_17,$fot(e_3))]]) ).

cnf(refute_0_75,plain,
    ( ~ product(e_4,e_1,e_4)
    | equalish(e_1,e_4) ),
    inference(subst,[],[refute_0_9:[bind(X_22,$fot(e_1)),bind(X_24,$fot(e_4))]]) ).

cnf(refute_0_76,plain,
    ( ~ group_element(X_42)
    | ~ group_element(e_1)
    | product(e_1,e_1,X_42)
    | product(e_2,e_1,X_42)
    | product(e_3,e_1,X_42)
    | product(e_4,e_1,X_42) ),
    inference(subst,[],[row_surjectivity:[bind(X,$fot(e_1)),bind(Y,$fot(X_42))]]) ).

cnf(refute_0_77,plain,
    ( ~ group_element(X_42)
    | product(e_1,e_1,X_42)
    | product(e_2,e_1,X_42)
    | product(e_3,e_1,X_42)
    | product(e_4,e_1,X_42) ),
    inference(resolve,[$cnf( group_element(e_1) )],[element_1,refute_0_76]) ).

cnf(refute_0_78,plain,
    ( ~ group_element(e_4)
    | product(e_1,e_1,e_4)
    | product(e_2,e_1,e_4)
    | product(e_3,e_1,e_4)
    | product(e_4,e_1,e_4) ),
    inference(subst,[],[refute_0_77:[bind(X_42,$fot(e_4))]]) ).

cnf(refute_0_79,plain,
    ( product(e_1,e_1,e_4)
    | product(e_2,e_1,e_4)
    | product(e_3,e_1,e_4)
    | product(e_4,e_1,e_4) ),
    inference(resolve,[$cnf( group_element(e_4) )],[element_4,refute_0_78]) ).

cnf(refute_0_80,plain,
    ( equalish(e_1,e_4)
    | product(e_1,e_1,e_4)
    | product(e_2,e_1,e_4)
    | product(e_3,e_1,e_4) ),
    inference(resolve,[$cnf( product(e_4,e_1,e_4) )],[refute_0_79,refute_0_75]) ).

cnf(refute_0_81,plain,
    ( product(e_1,e_1,e_4)
    | product(e_2,e_1,e_4)
    | product(e_3,e_1,e_4) ),
    inference(resolve,[$cnf( equalish(e_1,e_4) )],[refute_0_80,e_1_is_not_e_4]) ).

cnf(refute_0_82,plain,
    ( ~ product(e_3,e_1,e_4)
    | ~ product(e_4,e_3,e_1)
    | equalish(e_1,e_4) ),
    inference(subst,[],[refute_0_13:[bind(X1,$fot(e_3)),bind(Y1,$fot(e_1)),bind(Z2,$fot(e_4))]]) ).

cnf(refute_0_83,plain,
    ( ~ group_element(e_1)
    | product(e_1,e_3,e_1)
    | product(e_2,e_3,e_1)
    | product(e_3,e_3,e_1)
    | product(e_4,e_3,e_1) ),
    inference(subst,[],[refute_0_24:[bind(X_42,$fot(e_1))]]) ).

cnf(refute_0_84,plain,
    ( product(e_1,e_3,e_1)
    | product(e_2,e_3,e_1)
    | product(e_3,e_3,e_1)
    | product(e_4,e_3,e_1) ),
    inference(resolve,[$cnf( group_element(e_1) )],[element_1,refute_0_83]) ).

cnf(refute_0_85,plain,
    ( ~ product(e_3,e_1,e_4)
    | equalish(e_1,e_4)
    | product(e_1,e_3,e_1)
    | product(e_2,e_3,e_1)
    | product(e_3,e_3,e_1) ),
    inference(resolve,[$cnf( product(e_4,e_3,e_1) )],[refute_0_84,refute_0_82]) ).

cnf(refute_0_86,plain,
    ( ~ product(e_3,e_1,e_4)
    | product(e_1,e_3,e_1)
    | product(e_2,e_3,e_1)
    | product(e_3,e_3,e_1) ),
    inference(resolve,[$cnf( equalish(e_1,e_4) )],[refute_0_85,e_1_is_not_e_4]) ).

cnf(refute_0_87,plain,
    ( product(e_1,e_1,e_4)
    | product(e_1,e_3,e_1)
    | product(e_2,e_1,e_4)
    | product(e_2,e_3,e_1)
    | product(e_3,e_3,e_1) ),
    inference(resolve,[$cnf( product(e_3,e_1,e_4) )],[refute_0_81,refute_0_86]) ).

cnf(refute_0_88,plain,
    ( equalish(e_1,e_3)
    | product(e_1,e_1,e_4)
    | product(e_1,e_3,e_1)
    | product(e_2,e_1,e_4)
    | product(e_2,e_3,e_1) ),
    inference(resolve,[$cnf( product(e_3,e_3,e_1) )],[refute_0_87,refute_0_74]) ).

cnf(refute_0_89,plain,
    ( product(e_1,e_1,e_4)
    | product(e_1,e_3,e_1)
    | product(e_2,e_1,e_4)
    | product(e_2,e_3,e_1) ),
    inference(resolve,[$cnf( equalish(e_1,e_3) )],[refute_0_88,e_1_is_not_e_3]) ).

cnf(refute_0_90,plain,
    ( equalish(e_4,e_1)
    | product(e_1,e_1,e_4)
    | product(e_1,e_3,e_1)
    | product(e_1,e_3,e_4)
    | product(e_2,e_1,e_4) ),
    inference(resolve,[$cnf( product(e_2,e_3,e_1) )],[refute_0_89,refute_0_73]) ).

cnf(refute_0_91,plain,
    ( product(e_1,e_1,e_4)
    | product(e_1,e_3,e_1)
    | product(e_1,e_3,e_4)
    | product(e_2,e_1,e_4) ),
    inference(resolve,[$cnf( equalish(e_4,e_1) )],[refute_0_90,e_4_is_not_e_1]) ).

cnf(refute_0_92,plain,
    ( equalish(e_3,e_1)
    | product(e_1,e_1,e_4)
    | product(e_1,e_3,e_1)
    | product(e_1,e_3,e_4) ),
    inference(resolve,[$cnf( product(e_2,e_1,e_4) )],[refute_0_91,refute_0_70]) ).

cnf(refute_0_93,plain,
    ( product(e_1,e_1,e_4)
    | product(e_1,e_3,e_1)
    | product(e_1,e_3,e_4) ),
    inference(resolve,[$cnf( equalish(e_3,e_1) )],[refute_0_92,e_3_is_not_e_1]) ).

cnf(refute_0_94,plain,
    ( ~ product(e_1,e_3,W)
    | ~ product(e_1,e_3,e_2)
    | equalish(W,e_2) ),
    inference(subst,[],[product_total_function2:[bind(X,$fot(e_1)),bind(Y,$fot(e_3)),bind(Z,$fot(e_2))]]) ).

cnf(refute_0_95,plain,
    ( ~ product(e_1,e_3,W)
    | equalish(W,e_2)
    | product(e_1,e_2,e_4) ),
    inference(resolve,[$cnf( product(e_1,e_3,e_2) )],[refute_0_60,refute_0_94]) ).

cnf(refute_0_96,plain,
    ( ~ product(e_1,e_3,e_4)
    | equalish(e_4,e_2)
    | product(e_1,e_2,e_4) ),
    inference(subst,[],[refute_0_95:[bind(W,$fot(e_4))]]) ).

cnf(refute_0_97,plain,
    ( equalish(e_4,e_2)
    | product(e_1,e_1,e_4)
    | product(e_1,e_2,e_4)
    | product(e_1,e_3,e_1) ),
    inference(resolve,[$cnf( product(e_1,e_3,e_4) )],[refute_0_93,refute_0_96]) ).

cnf(refute_0_98,plain,
    ( product(e_1,e_1,e_4)
    | product(e_1,e_2,e_4)
    | product(e_1,e_3,e_1) ),
    inference(resolve,[$cnf( equalish(e_4,e_2) )],[refute_0_97,e_4_is_not_e_2]) ).

cnf(refute_0_99,plain,
    ( equalish(e_3,e_1)
    | product(e_1,e_1,e_4)
    | product(e_1,e_2,e_4) ),
    inference(resolve,[$cnf( product(e_1,e_3,e_1) )],[refute_0_98,refute_0_67]) ).

cnf(refute_0_100,plain,
    ( product(e_1,e_1,e_4)
    | product(e_1,e_2,e_4) ),
    inference(resolve,[$cnf( equalish(e_3,e_1) )],[refute_0_99,e_3_is_not_e_1]) ).

cnf(refute_0_101,plain,
    ( equalish(e_3,e_4)
    | product(e_1,e_1,e_4) ),
    inference(resolve,[$cnf( product(e_1,e_2,e_4) )],[refute_0_100,refute_0_66]) ).

cnf(refute_0_102,plain,
    product(e_1,e_1,e_4),
    inference(resolve,[$cnf( equalish(e_3,e_4) )],[refute_0_101,e_3_is_not_e_4]) ).

cnf(refute_0_103,plain,
    equalish(e_4,e_1),
    inference(resolve,[$cnf( product(e_1,e_1,e_4) )],[refute_0_102,refute_0_3]) ).

cnf(refute_0_104,plain,
    $false,
    inference(resolve,[$cnf( equalish(e_4,e_1) )],[refute_0_103,e_4_is_not_e_1]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.11  % Problem  : GRP124-4.004 : TPTP v8.1.0. Bugfixed v1.2.1.
% 0.06/0.12  % Command  : metis --show proof --show saturation %s
% 0.12/0.33  % Computer : n015.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Tue Jun 14 07:40:38 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.12/0.33  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.19/0.40  % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.19/0.40  
% 0.19/0.40  % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 0.19/0.41  
%------------------------------------------------------------------------------