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%------------------------------------------------------------------------------
% File     : EQP---0.9e
% Problem  : GRP439-1 : TPTP v8.1.0. Released v2.6.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_eqp %s

% Computer : n022.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 08:47:21 EDT 2022

% Result   : Unsatisfiable 1.21s 1.60s
% Output   : Refutation 1.21s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   47
%            Number of leaves      :    1
% Syntax   : Number of clauses     :  107 ( 107 unt;   0 nHn;   2 RR)
%            Number of literals    :  107 (   0 equ;   1 neg)
%            Maximal clause size   :    1 (   1 avg)
%            Maximal term depth    :   14 (   3 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    4 (   4 usr;   2 con; 0-2 aty)
%            Number of variables   :  398 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,plain,
    equal(inverse(multiply(A,multiply(B,multiply(multiply(inverse(B),C),inverse(multiply(D,multiply(A,C))))))),D),
    file('GRP439-1.p',unknown),
    [] ).

cnf(2,plain,
    ~ equal(multiply(inverse(b1),b1),multiply(inverse(a1),a1)),
    inference(flip,[status(thm),theory(equality)],[1]),
    [iquote('flip(1)')] ).

cnf(3,plain,
    equal(inverse(multiply(A,multiply(multiply(B,multiply(C,multiply(multiply(inverse(C),D),inverse(multiply(E,multiply(B,D)))))),multiply(multiply(E,F),inverse(multiply(G,multiply(A,F))))))),G),
    inference(para,[status(thm),theory(equality)],[1,1]),
    [iquote('para(1,1)')] ).

cnf(4,plain,
    equal(inverse(multiply(A,multiply(B,multiply(multiply(inverse(B),multiply(multiply(inverse(A),C),inverse(multiply(D,multiply(E,C))))),D)))),E),
    inference(para,[status(thm),theory(equality)],[1,1]),
    [iquote('para(1,1)')] ).

cnf(6,plain,
    equal(inverse(multiply(multiply(A,multiply(B,multiply(multiply(inverse(B),C),inverse(multiply(D,multiply(A,C)))))),multiply(E,multiply(multiply(inverse(E),multiply(multiply(D,F),inverse(multiply(G,multiply(H,F))))),G)))),H),
    inference(para,[status(thm),theory(equality)],[3,1]),
    [iquote('para(3,1)')] ).

cnf(9,plain,
    equal(inverse(multiply(A,multiply(B,multiply(multiply(inverse(B),multiply(multiply(inverse(A),multiply(multiply(inverse(C),D),inverse(multiply(E,multiply(F,D))))),E)),F)))),C),
    inference(para,[status(thm),theory(equality)],[4,1]),
    [iquote('para(4,1)')] ).

cnf(26,plain,
    equal(inverse(multiply(A,multiply(B,multiply(multiply(inverse(B),multiply(multiply(inverse(A),multiply(multiply(C,D),inverse(multiply(E,multiply(F,D))))),E)),F)))),multiply(G,multiply(H,multiply(multiply(inverse(H),I),inverse(multiply(C,multiply(G,I))))))),
    inference(para,[status(thm),theory(equality)],[6,1]),
    [iquote('para(6,1)')] ).

cnf(1034,plain,
    equal(multiply(A,multiply(B,multiply(multiply(inverse(B),C),inverse(multiply(inverse(D),multiply(A,C)))))),D),
    inference(para,[status(thm),theory(equality)],[26,9]),
    [iquote('para(26,9)')] ).

cnf(1035,plain,
    equal(inverse(multiply(A,multiply(B,multiply(C,inverse(multiply(D,multiply(A,multiply(E,multiply(multiply(inverse(E),F),inverse(multiply(inverse(C),multiply(inverse(B),F)))))))))))),D),
    inference(para,[status(thm),theory(equality)],[1034,1]),
    [iquote('para(1034,1)')] ).

cnf(1043,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(B,inverse(multiply(C,B)))))),C),
    inference(para,[status(thm),theory(equality)],[1034,1035]),
    [iquote('para(1034,1035)')] ).

cnf(1049,plain,
    equal(inverse(multiply(A,multiply(B,multiply(multiply(inverse(B),multiply(C,inverse(multiply(D,C)))),D)))),inverse(A)),
    inference(para,[status(thm),theory(equality)],[1043,1]),
    [iquote('para(1043,1)')] ).

cnf(1054,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(multiply(B,multiply(multiply(inverse(B),multiply(C,inverse(multiply(D,C)))),D)),inverse(E))))),E),
    inference(para,[status(thm),theory(equality)],[1049,1043]),
    [iquote('para(1049,1043)')] ).

cnf(1079,plain,
    equal(multiply(A,multiply(B,multiply(multiply(inverse(B),multiply(C,inverse(multiply(D,C)))),D))),A),
    inference(para,[status(thm),theory(equality)],[1054,1043]),
    [iquote('para(1054,1043)')] ).

cnf(1082,plain,
    equal(inverse(multiply(A,multiply(B,multiply(inverse(B),inverse(multiply(C,A)))))),C),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[1079,1]),1079]),
    [iquote('para(1079,1),demod([1079])')] ).

cnf(1085,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(multiply(B,multiply(inverse(B),inverse(multiply(C,D)))),C)))),D),
    inference(para,[status(thm),theory(equality)],[1082,1043]),
    [iquote('para(1082,1043)')] ).

cnf(1086,plain,
    equal(inverse(multiply(multiply(A,multiply(B,inverse(multiply(C,B)))),multiply(D,multiply(inverse(D),C)))),inverse(A)),
    inference(para,[status(thm),theory(equality)],[1043,1082]),
    [iquote('para(1043,1082)')] ).

cnf(1091,plain,
    equal(inverse(multiply(multiply(A,multiply(multiply(inverse(A),multiply(B,inverse(multiply(C,B)))),C)),multiply(D,multiply(inverse(D),inverse(E))))),E),
    inference(para,[status(thm),theory(equality)],[1079,1082]),
    [iquote('para(1079,1082)')] ).

cnf(1103,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(multiply(B,multiply(inverse(B),C)),inverse(D))))),multiply(D,multiply(E,inverse(multiply(C,E))))),
    inference(para,[status(thm),theory(equality)],[1086,1043]),
    [iquote('para(1086,1043)')] ).

cnf(1182,plain,
    equal(inverse(multiply(multiply(A,multiply(multiply(inverse(A),multiply(B,inverse(multiply(C,B)))),C)),multiply(D,multiply(inverse(D),E)))),multiply(F,multiply(G,multiply(inverse(G),inverse(multiply(E,F)))))),
    inference(para,[status(thm),theory(equality)],[1082,1091]),
    [iquote('para(1082,1091)')] ).

cnf(1183,plain,
    equal(multiply(A,multiply(B,multiply(inverse(B),inverse(multiply(C,A))))),inverse(multiply(multiply(D,multiply(multiply(inverse(D),multiply(E,inverse(multiply(F,E)))),F)),multiply(G,multiply(inverse(G),C))))),
    inference(flip,[status(thm),theory(equality)],[1182]),
    [iquote('flip(1182)')] ).

cnf(1197,plain,
    equal(multiply(multiply(A,multiply(B,multiply(inverse(B),C))),multiply(D,inverse(multiply(C,D)))),A),
    inference(para,[status(thm),theory(equality)],[1103,1043]),
    [iquote('para(1103,1043)')] ).

cnf(1200,plain,
    equal(inverse(multiply(inverse(multiply(A,multiply(B,multiply(inverse(B),C)))),A)),C),
    inference(para,[status(thm),theory(equality)],[1197,1043]),
    [iquote('para(1197,1043)')] ).

cnf(1201,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(B,C)))),inverse(multiply(B,multiply(D,multiply(inverse(D),C))))),
    inference(para,[status(thm),theory(equality)],[1200,1043]),
    [iquote('para(1200,1043)')] ).

cnf(1206,plain,
    equal(inverse(inverse(multiply(multiply(A,multiply(multiply(inverse(A),multiply(B,inverse(multiply(C,B)))),C)),multiply(D,multiply(inverse(D),E))))),E),
    inference(para,[status(thm),theory(equality)],[1079,1200]),
    [iquote('para(1079,1200)')] ).

cnf(1234,plain,
    equal(inverse(multiply(inverse(A),multiply(A,B))),inverse(multiply(B,multiply(C,inverse(C))))),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[1079,1201]),1079]),
    [iquote('para(1079,1201),demod([1079])')] ).

cnf(1239,plain,
    equal(inverse(multiply(multiply(A,inverse(multiply(B,A))),multiply(C,inverse(C)))),B),
    inference(flip,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[1043,1234]),1]),
    [iquote('para(1043,1234),flip(1)')] ).

cnf(1240,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(multiply(B,C),inverse(multiply(C,multiply(D,inverse(D)))))))),inverse(B)),
    inference(para,[status(thm),theory(equality)],[1234,1043]),
    [iquote('para(1234,1043)')] ).

cnf(1242,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(multiply(B,inverse(B)),C)))),multiply(D,inverse(multiply(C,D)))),
    inference(para,[status(thm),theory(equality)],[1239,1043]),
    [iquote('para(1239,1043)')] ).

cnf(1245,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),multiply(B,multiply(inverse(B),C)))),multiply(D,inverse(multiply(C,D)))),
    inference(para,[status(thm),theory(equality)],[1239,1082]),
    [iquote('para(1239,1082)')] ).

cnf(1246,plain,
    equal(multiply(A,inverse(multiply(B,A))),inverse(multiply(multiply(C,inverse(C)),multiply(D,multiply(inverse(D),B))))),
    inference(flip,[status(thm),theory(equality)],[1245]),
    [iquote('flip(1245)')] ).

cnf(1273,plain,
    equal(inverse(multiply(A,multiply(B,inverse(B)))),inverse(multiply(A,multiply(C,inverse(C))))),
    inference(para,[status(thm),theory(equality)],[1234,1234]),
    [iquote('para(1234,1234)')] ).

cnf(1274,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(multiply(B,inverse(B)),inverse(multiply(C,multiply(D,inverse(D)))))))),C),
    inference(para,[status(thm),theory(equality)],[1273,1043]),
    [iquote('para(1273,1043)')] ).

cnf(1277,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),multiply(B,multiply(inverse(B),inverse(multiply(C,multiply(D,inverse(D)))))))),C),
    inference(para,[status(thm),theory(equality)],[1273,1082]),
    [iquote('para(1273,1082)')] ).

cnf(1281,plain,
    equal(inverse(multiply(inverse(multiply(multiply(A,inverse(A)),multiply(B,multiply(inverse(B),C)))),multiply(D,inverse(D)))),C),
    inference(para,[status(thm),theory(equality)],[1273,1200]),
    [iquote('para(1273,1200)')] ).

cnf(1309,plain,
    equal(inverse(multiply(A,multiply(B,multiply(multiply(inverse(B),inverse(A)),C)))),multiply(D,inverse(multiply(C,D)))),
    inference(para,[status(thm),theory(equality)],[1239,1]),
    [iquote('para(1239,1)')] ).

cnf(1310,plain,
    equal(multiply(A,inverse(multiply(B,A))),inverse(multiply(C,multiply(D,multiply(multiply(inverse(D),inverse(C)),B))))),
    inference(flip,[status(thm),theory(equality)],[1309]),
    [iquote('flip(1309)')] ).

cnf(1345,plain,
    equal(multiply(A,inverse(multiply(inverse(multiply(B,multiply(C,inverse(C)))),A))),B),
    inference(para,[status(thm),theory(equality)],[1242,1043]),
    [iquote('para(1242,1043)')] ).

cnf(1376,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),multiply(B,C))),multiply(D,inverse(multiply(inverse(multiply(inverse(multiply(C,multiply(E,inverse(E)))),inverse(B))),D)))),
    inference(para,[status(thm),theory(equality)],[1345,1245]),
    [iquote('para(1345,1245)')] ).

cnf(1377,plain,
    equal(multiply(A,inverse(multiply(inverse(multiply(inverse(multiply(B,multiply(C,inverse(C)))),inverse(D))),A))),inverse(multiply(multiply(E,inverse(E)),multiply(D,B)))),
    inference(flip,[status(thm),theory(equality)],[1376]),
    [iquote('flip(1376)')] ).

cnf(1380,plain,
    equal(inverse(multiply(inverse(multiply(A,B)),multiply(C,multiply(inverse(C),inverse(inverse(multiply(multiply(D,inverse(D)),multiply(E,multiply(inverse(E),A))))))))),B),
    inference(para,[status(thm),theory(equality)],[1246,1082]),
    [iquote('para(1246,1082)')] ).

cnf(1400,plain,
    equal(inverse(multiply(inverse(A),multiply(A,inverse(multiply(B,multiply(C,multiply(multiply(inverse(C),inverse(B)),D))))))),D),
    inference(para,[status(thm),theory(equality)],[1310,1043]),
    [iquote('para(1310,1043)')] ).

cnf(1433,plain,
    equal(inverse(multiply(multiply(multiply(A,multiply(inverse(A),inverse(multiply(B,C)))),B),multiply(D,inverse(D)))),C),
    inference(flip,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[1085,1234]),1]),
    [iquote('para(1085,1234),flip(1)')] ).

cnf(1434,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(multiply(B,inverse(B)),C)))),multiply(multiply(D,multiply(inverse(D),inverse(multiply(E,C)))),E)),
    inference(para,[status(thm),theory(equality)],[1433,1043]),
    [iquote('para(1433,1043)')] ).

cnf(1435,plain,
    equal(multiply(multiply(A,multiply(inverse(A),inverse(multiply(B,C)))),B),inverse(multiply(inverse(D),multiply(D,multiply(multiply(E,inverse(E)),C))))),
    inference(flip,[status(thm),theory(equality)],[1434]),
    [iquote('flip(1434)')] ).

cnf(1466,plain,
    equal(multiply(A,inverse(multiply(B,A))),inverse(multiply(multiply(multiply(C,inverse(C)),B),multiply(D,inverse(D))))),
    inference(para,[status(thm),theory(equality)],[1242,1234]),
    [iquote('para(1242,1234)')] ).

cnf(1469,plain,
    equal(inverse(multiply(inverse(A),multiply(A,inverse(multiply(multiply(multiply(B,inverse(B)),C),multiply(D,inverse(D))))))),C),
    inference(para,[status(thm),theory(equality)],[1466,1043]),
    [iquote('para(1466,1043)')] ).

cnf(1573,plain,
    equal(inverse(multiply(inverse(A),inverse(multiply(multiply(multiply(B,inverse(B)),C),multiply(D,inverse(D)))))),inverse(multiply(inverse(multiply(C,A)),multiply(E,inverse(E))))),
    inference(para,[status(thm),theory(equality)],[1466,1234]),
    [iquote('para(1466,1234)')] ).

cnf(1574,plain,
    equal(inverse(multiply(inverse(multiply(A,B)),multiply(C,inverse(C)))),inverse(multiply(inverse(B),inverse(multiply(multiply(multiply(D,inverse(D)),A),multiply(E,inverse(E))))))),
    inference(flip,[status(thm),theory(equality)],[1573]),
    [iquote('flip(1573)')] ).

cnf(1623,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(multiply(B,inverse(B)),inverse(multiply(C,multiply(multiply(inverse(multiply(D,multiply(E,multiply(inverse(E),F)))),D),F))))))),C),
    inference(para,[status(thm),theory(equality)],[1200,1274]),
    [iquote('para(1200,1274)')] ).

cnf(1627,plain,
    equal(multiply(A,inverse(A)),multiply(B,inverse(B))),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[1277,1043]),1085]),
    [iquote('para(1277,1043),demod([1085])')] ).

cnf(1629,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(inverse(B),inverse(multiply(C,inverse(C))))))),B),
    inference(para,[status(thm),theory(equality)],[1627,1043]),
    [iquote('para(1627,1043)')] ).

cnf(1632,plain,
    equal(inverse(multiply(inverse(A),multiply(B,multiply(inverse(B),inverse(multiply(C,inverse(C))))))),A),
    inference(para,[status(thm),theory(equality)],[1627,1082]),
    [iquote('para(1627,1082)')] ).

cnf(1684,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),multiply(B,multiply(C,inverse(C))))),multiply(D,inverse(multiply(inverse(inverse(B)),D)))),
    inference(para,[status(thm),theory(equality)],[1627,1245]),
    [iquote('para(1627,1245)')] ).

cnf(1685,plain,
    equal(multiply(A,inverse(multiply(inverse(inverse(B)),A))),inverse(multiply(multiply(C,inverse(C)),multiply(B,multiply(D,inverse(D)))))),
    inference(flip,[status(thm),theory(equality)],[1684]),
    [iquote('flip(1684)')] ).

cnf(1686,plain,
    equal(inverse(multiply(A,multiply(B,multiply(C,inverse(C))))),multiply(D,inverse(multiply(inverse(multiply(inverse(B),inverse(A))),D)))),
    inference(para,[status(thm),theory(equality)],[1627,1309]),
    [iquote('para(1627,1309)')] ).

cnf(1687,plain,
    equal(multiply(A,inverse(multiply(inverse(multiply(inverse(B),inverse(C))),A))),inverse(multiply(C,multiply(B,multiply(D,inverse(D)))))),
    inference(flip,[status(thm),theory(equality)],[1686]),
    [iquote('flip(1686)')] ).

cnf(1702,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(B,inverse(B))))),inverse(multiply(C,inverse(C)))),
    inference(para,[status(thm),theory(equality)],[1627,1240]),
    [iquote('para(1627,1240)')] ).

cnf(1739,plain,
    equal(inverse(multiply(inverse(A),multiply(A,inverse(multiply(B,multiply(C,multiply(D,inverse(D)))))))),inverse(multiply(inverse(C),inverse(B)))),
    inference(para,[status(thm),theory(equality)],[1627,1400]),
    [iquote('para(1627,1400)')] ).

cnf(1743,plain,
    equal(inverse(multiply(inverse(multiply(multiply(multiply(A,inverse(A)),B),multiply(C,inverse(C)))),multiply(D,inverse(D)))),B),
    inference(para,[status(thm),theory(equality)],[1627,1469]),
    [iquote('para(1627,1469)')] ).

cnf(1763,plain,
    equal(multiply(multiply(A,multiply(inverse(A),inverse(multiply(B,inverse(B))))),multiply(C,multiply(inverse(C),D))),D),
    inference(para,[status(thm),theory(equality)],[1632,1200]),
    [iquote('para(1632,1200)')] ).

cnf(1855,plain,
    equal(inverse(multiply(multiply(inverse(A),inverse(multiply(B,inverse(B)))),multiply(C,inverse(C)))),A),
    inference(para,[status(thm),theory(equality)],[1234,1629]),
    [iquote('para(1234,1629)')] ).

cnf(1866,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),multiply(B,multiply(inverse(B),C)))),multiply(inverse(C),inverse(multiply(D,inverse(D))))),
    inference(para,[status(thm),theory(equality)],[1855,1082]),
    [iquote('para(1855,1082)')] ).

cnf(1883,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),multiply(B,multiply(C,inverse(C))))),multiply(inverse(inverse(inverse(B))),inverse(multiply(D,inverse(D))))),
    inference(para,[status(thm),theory(equality)],[1627,1866]),
    [iquote('para(1627,1866)')] ).

cnf(1884,plain,
    equal(multiply(inverse(inverse(inverse(A))),inverse(multiply(B,inverse(B)))),inverse(multiply(multiply(C,inverse(C)),multiply(A,multiply(D,inverse(D)))))),
    inference(flip,[status(thm),theory(equality)],[1883]),
    [iquote('flip(1883)')] ).

cnf(1892,plain,
    equal(inverse(multiply(A,inverse(A))),inverse(multiply(multiply(B,inverse(B)),multiply(C,inverse(C))))),
    inference(para,[status(thm),theory(equality)],[1702,1234]),
    [iquote('para(1702,1234)')] ).

cnf(1893,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),multiply(B,inverse(B)))),inverse(multiply(C,inverse(C)))),
    inference(flip,[status(thm),theory(equality)],[1892]),
    [iquote('flip(1892)')] ).

cnf(1904,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(multiply(B,inverse(B)),inverse(multiply(C,inverse(C))))))),multiply(D,inverse(D))),
    inference(para,[status(thm),theory(equality)],[1893,1043]),
    [iquote('para(1893,1043)')] ).

cnf(1927,plain,
    equal(inverse(multiply(inverse(A),multiply(A,multiply(B,inverse(B))))),multiply(C,inverse(C))),
    inference(para,[status(thm),theory(equality)],[1627,1904]),
    [iquote('para(1627,1904)')] ).

cnf(2030,plain,
    equal(multiply(A,inverse(A)),inverse(multiply(B,inverse(B)))),
    inference(para,[status(thm),theory(equality)],[1927,1702]),
    [iquote('para(1927,1702)')] ).

cnf(2037,plain,
    equal(inverse(multiply(inverse(A),multiply(B,multiply(inverse(B),inverse(inverse(multiply(C,inverse(C)))))))),A),
    inference(para,[status(thm),theory(equality)],[2030,1082]),
    [iquote('para(2030,1082)')] ).

cnf(2088,plain,
    equal(inverse(multiply(inverse(A),multiply(multiply(B,inverse(B)),inverse(multiply(C,inverse(C)))))),A),
    inference(para,[status(thm),theory(equality)],[2030,2037]),
    [iquote('para(2030,2037)')] ).

cnf(2091,plain,
    equal(inverse(multiply(inverse(A),multiply(B,inverse(B)))),A),
    inference(para,[status(thm),theory(equality)],[1627,2088]),
    [iquote('para(1627,2088)')] ).

cnf(2095,plain,
    equal(multiply(multiply(multiply(A,inverse(A)),B),multiply(C,inverse(C))),B),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1743]),2091]),
    [iquote('back_demod(1743),demod([2091])')] ).

cnf(2108,plain,
    equal(inverse(multiply(inverse(A),inverse(B))),multiply(B,A)),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1574]),2091,2095]),1]),
    [iquote('back_demod(1574),demod([2091,2095]),flip(1)')] ).

cnf(2111,plain,
    equal(inverse(multiply(inverse(A),multiply(A,inverse(multiply(B,multiply(C,multiply(D,inverse(D)))))))),multiply(B,C)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1739]),2108]),
    [iquote('back_demod(1739),demod([2108])')] ).

cnf(2112,plain,
    equal(multiply(A,inverse(multiply(multiply(B,C),A))),inverse(multiply(B,multiply(C,multiply(D,inverse(D)))))),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1687]),2108]),
    [iquote('back_demod(1687),demod([2108])')] ).

cnf(2113,plain,
    equal(inverse(multiply(A,multiply(B,multiply(C,inverse(C))))),multiply(D,inverse(multiply(multiply(A,B),D)))),
    inference(flip,[status(thm),theory(equality)],[2112]),
    [iquote('flip(2112)')] ).

cnf(2126,plain,
    equal(multiply(A,inverse(multiply(multiply(B,multiply(C,multiply(D,inverse(D)))),A))),inverse(multiply(multiply(E,inverse(E)),multiply(B,C)))),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1377]),2108]),
    [iquote('back_demod(1377),demod([2108])')] ).

cnf(2127,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),multiply(B,C))),multiply(D,inverse(multiply(multiply(B,multiply(C,multiply(E,inverse(E)))),D)))),
    inference(flip,[status(thm),theory(equality)],[2126]),
    [iquote('flip(2126)')] ).

cnf(2133,plain,
    equal(inverse(multiply(inverse(A),multiply(A,inverse(B)))),B),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1469]),2095]),
    [iquote('back_demod(1469),demod([2095])')] ).

cnf(2134,plain,
    equal(multiply(A,multiply(B,multiply(C,inverse(C)))),multiply(A,B)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[2111]),2133]),
    [iquote('back_demod(2111),demod([2133])')] ).

cnf(2149,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),multiply(B,C))),multiply(D,inverse(multiply(multiply(B,C),D)))),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[2127]),2134]),
    [iquote('back_demod(2127),demod([2134])')] ).

cnf(2150,plain,
    equal(multiply(A,inverse(multiply(multiply(B,C),A))),inverse(multiply(multiply(D,inverse(D)),multiply(B,C)))),
    inference(flip,[status(thm),theory(equality)],[2149]),
    [iquote('flip(2149)')] ).

cnf(2151,plain,
    equal(multiply(A,inverse(multiply(multiply(B,C),A))),inverse(multiply(B,C))),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[2113]),2134]),1]),
    [iquote('back_demod(2113),demod([2134]),flip(1)')] ).

cnf(2152,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),multiply(B,C))),inverse(multiply(B,C))),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[2150]),2151]),1]),
    [iquote('back_demod(2150),demod([2151]),flip(1)')] ).

cnf(2178,plain,
    equal(multiply(inverse(inverse(inverse(A))),inverse(multiply(B,inverse(B)))),inverse(multiply(multiply(C,inverse(C)),A))),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1884]),2134]),
    [iquote('back_demod(1884),demod([2134])')] ).

cnf(2179,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),B)),multiply(inverse(inverse(inverse(B))),inverse(multiply(C,inverse(C))))),
    inference(flip,[status(thm),theory(equality)],[2178]),
    [iquote('flip(2178)')] ).

cnf(2186,plain,
    equal(multiply(A,inverse(multiply(inverse(inverse(B)),A))),inverse(multiply(multiply(C,inverse(C)),B))),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1685]),2134]),
    [iquote('back_demod(1685),demod([2134])')] ).

cnf(2187,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),B)),multiply(C,inverse(multiply(inverse(inverse(B)),C)))),
    inference(flip,[status(thm),theory(equality)],[2186]),
    [iquote('flip(2186)')] ).

cnf(2199,plain,
    equal(inverse(multiply(inverse(multiply(A,B)),multiply(C,multiply(inverse(C),inverse(inverse(multiply(D,multiply(inverse(D),A)))))))),B),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1380]),2152]),
    [iquote('back_demod(1380),demod([2152])')] ).

cnf(2201,plain,
    equal(multiply(A,multiply(inverse(A),B)),B),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1281]),2152,2091]),
    [iquote('back_demod(1281),demod([2152,2091])')] ).

cnf(2203,plain,
    equal(multiply(inverse(A),multiply(A,B)),B),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[2199]),2201,2201,2108]),
    [iquote('back_demod(2199),demod([2201,2201,2108])')] ).

cnf(2215,plain,
    equal(inverse(inverse(A)),A),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[2133]),2203]),
    [iquote('back_demod(2133),demod([2203])')] ).

cnf(2217,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),B)),multiply(C,inverse(multiply(B,C)))),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[2187]),2215]),
    [iquote('back_demod(2187),demod([2215])')] ).

cnf(2218,plain,
    equal(multiply(A,inverse(multiply(B,A))),inverse(multiply(multiply(C,inverse(C)),B))),
    inference(flip,[status(thm),theory(equality)],[2217]),
    [iquote('flip(2217)')] ).

cnf(2219,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),B)),multiply(inverse(B),inverse(multiply(C,inverse(C))))),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[2179]),2215]),
    [iquote('back_demod(2179),demod([2215])')] ).

cnf(2220,plain,
    equal(multiply(inverse(A),inverse(multiply(B,inverse(B)))),inverse(multiply(multiply(C,inverse(C)),A))),
    inference(flip,[status(thm),theory(equality)],[2219]),
    [iquote('flip(2219)')] ).

cnf(2239,plain,
    equal(multiply(multiply(A,multiply(multiply(inverse(A),multiply(B,inverse(multiply(C,B)))),C)),D),D),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1206]),2201,2215]),
    [iquote('back_demod(1206),demod([2201,2215])')] ).

cnf(2240,plain,
    equal(multiply(A,inverse(multiply(B,A))),inverse(B)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1183]),2201,2201,2239]),
    [iquote('back_demod(1183),demod([2201,2201,2239])')] ).

cnf(2246,plain,
    equal(inverse(multiply(multiply(A,inverse(A)),B)),inverse(B)),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[2218]),2240]),1]),
    [iquote('back_demod(2218),demod([2240]),flip(1)')] ).

cnf(2247,plain,
    equal(multiply(inverse(A),inverse(multiply(B,inverse(B)))),inverse(A)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[2220]),2246]),
    [iquote('back_demod(2220),demod([2246])')] ).

cnf(2257,plain,
    equal(multiply(multiply(A,inverse(A)),B),B),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1763]),2247,2201]),
    [iquote('back_demod(1763),demod([2247,2201])')] ).

cnf(2282,plain,
    equal(multiply(A,multiply(multiply(inverse(multiply(B,C)),B),C)),A),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1623]),2201,2257,2203,2215]),
    [iquote('back_demod(1623),demod([2201,2257,2203,2215])')] ).

cnf(2286,plain,
    equal(multiply(inverse(multiply(A,B)),A),inverse(B)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[1435]),2201,2257,2203]),
    [iquote('back_demod(1435),demod([2201,2257,2203])')] ).

cnf(2287,plain,
    equal(multiply(A,multiply(inverse(B),B)),A),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[2282]),2286]),
    [iquote('back_demod(2282),demod([2286])')] ).

cnf(3253,plain,
    equal(multiply(inverse(A),A),multiply(inverse(B),B)),
    inference(para,[status(thm),theory(equality)],[2287,2203]),
    [iquote('para(2287,2203)')] ).

cnf(3254,plain,
    $false,
    inference(conflict,[status(thm)],[3253,2]),
    [iquote('conflict(3253,2)')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : GRP439-1 : TPTP v8.1.0. Released v2.6.0.
% 0.07/0.12  % Command  : tptp2X_and_run_eqp %s
% 0.12/0.33  % Computer : n022.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 00:46:03 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 1.21/1.60  ----- EQP 0.9e, May 2009 -----
% 1.21/1.60  The job began on n022.cluster.edu, Tue Jun 14 00:46:04 2022
% 1.21/1.60  The command was "./eqp09e".
% 1.21/1.60  
% 1.21/1.60  set(prolog_style_variables).
% 1.21/1.60  set(lrpo).
% 1.21/1.60  set(basic_paramod).
% 1.21/1.60  set(functional_subsume).
% 1.21/1.60  set(ordered_paramod).
% 1.21/1.60  set(prime_paramod).
% 1.21/1.60  set(para_pairs).
% 1.21/1.60  assign(pick_given_ratio,4).
% 1.21/1.60  clear(print_kept).
% 1.21/1.60  clear(print_new_demod).
% 1.21/1.60  clear(print_back_demod).
% 1.21/1.60  clear(print_given).
% 1.21/1.60  assign(max_mem,64000).
% 1.21/1.60  end_of_commands.
% 1.21/1.60  
% 1.21/1.60  Usable:
% 1.21/1.60  end_of_list.
% 1.21/1.60  
% 1.21/1.60  Sos:
% 1.21/1.60  0 (wt=-1) [] inverse(multiply(A,multiply(B,multiply(multiply(inverse(B),C),inverse(multiply(D,multiply(A,C))))))) = D.
% 1.21/1.60  0 (wt=-1) [] -(multiply(inverse(a1),a1) = multiply(inverse(b1),b1)).
% 1.21/1.60  end_of_list.
% 1.21/1.60  
% 1.21/1.60  Demodulators:
% 1.21/1.60  end_of_list.
% 1.21/1.60  
% 1.21/1.60  Passive:
% 1.21/1.60  end_of_list.
% 1.21/1.60  
% 1.21/1.60  Starting to process input.
% 1.21/1.60  
% 1.21/1.60  ** KEPT: 1 (wt=18) [] inverse(multiply(A,multiply(B,multiply(multiply(inverse(B),C),inverse(multiply(D,multiply(A,C))))))) = D.
% 1.21/1.60  1 is a new demodulator.
% 1.21/1.60  
% 1.21/1.60  ** KEPT: 2 (wt=9) [flip(1)] -(multiply(inverse(b1),b1) = multiply(inverse(a1),a1)).
% 1.21/1.60  ---------------- PROOF FOUND ----------------
% 1.21/1.60  % SZS status Unsatisfiable
% 1.21/1.60  
% 1.21/1.60  
% 1.21/1.60  After processing input:
% 1.21/1.60  
% 1.21/1.60  Usable:
% 1.21/1.60  end_of_list.
% 1.21/1.60  
% 1.21/1.60  Sos:
% 1.21/1.60  2 (wt=9) [flip(1)] -(multiply(inverse(b1),b1) = multiply(inverse(a1),a1)).
% 1.21/1.60  1 (wt=18) [] inverse(multiply(A,multiply(B,multiply(multiply(inverse(B),C),inverse(multiply(D,multiply(A,C))))))) = D.
% 1.21/1.60  end_of_list.
% 1.21/1.60  
% 1.21/1.60  Demodulators:
% 1.21/1.60  1 (wt=18) [] inverse(multiply(A,multiply(B,multiply(multiply(inverse(B),C),inverse(multiply(D,multiply(A,C))))))) = D.
% 1.21/1.60  end_of_list.
% 1.21/1.60  
% 1.21/1.60  Passive:
% 1.21/1.60  end_of_list.
% 1.21/1.60  
% 1.21/1.60  UNIT CONFLICT from 3253 and 2 at   0.44 seconds.
% 1.21/1.60  
% 1.21/1.60  ---------------- PROOF ----------------
% 1.21/1.60  % SZS output start Refutation
% See solution above
% 1.21/1.60  ------------ end of proof -------------
% 1.21/1.60  
% 1.21/1.60  
% 1.21/1.60  ------------- memory usage ------------
% 1.21/1.60  Memory dynamically allocated (tp_alloc): 14648.
% 1.21/1.60    type (bytes each)        gets      frees     in use      avail      bytes
% 1.21/1.60  sym_ent (  96)               56          0         56          0      5.2 K
% 1.21/1.60  term (  16)              585457     416983     168474         68   3279.1 K
% 1.21/1.60  gen_ptr (   8)          1475735     294073    1181662        106   9232.6 K
% 1.21/1.60  context ( 808)           286732     286730          2         22     18.9 K
% 1.21/1.60  trail (  12)             149640     149640          0         27      0.3 K
% 1.21/1.60  bt_node (  68)            37635      37632          3         57      4.0 K
% 1.21/1.60  ac_position (285432)          0          0          0          0      0.0 K
% 1.21/1.60  ac_match_pos (14044)          0          0          0          0      0.0 K
% 1.21/1.60  ac_match_free_vars_pos (4020)
% 1.21/1.60                                0          0          0          0      0.0 K
% 1.21/1.60  discrim (  12)           122229     112705       9524      63490    855.6 K
% 1.21/1.60  flat (  40)             1490800    1490800          0        119      4.6 K
% 1.21/1.60  discrim_pos (  12)        19335      19335          0          1      0.0 K
% 1.21/1.60  fpa_head (  12)            6011          0       6011          0     70.4 K
% 1.21/1.60  fpa_tree (  28)           24478      24478          0         33      0.9 K
% 1.21/1.60  fpa_pos (  36)             5451       5451          0          1      0.0 K
% 1.21/1.60  literal (  12)            10873       7620       3253          1     38.1 K
% 1.21/1.60  clause (  24)             10873       7620       3253          1     76.3 K
% 1.21/1.60  list (  12)                2257       2201         56         29      1.0 K
% 1.21/1.60  list_pos (  20)           20624      16712       3912       6927    211.7 K
% 1.21/1.60  pair_index (   40)              2          0          2          0      0.1 K
% 1.21/1.60  
% 1.21/1.60  -------------- statistics -------------
% 1.21/1.60  Clauses input                  2
% 1.21/1.60    Usable input                   0
% 1.21/1.60    Sos input                      2
% 1.21/1.60    Demodulators input             0
% 1.21/1.60    Passive input                  0
% 1.21/1.60  
% 1.21/1.60  Processed BS (before search)   2
% 1.21/1.60  Forward subsumed BS            0
% 1.21/1.60  Kept BS                        2
% 1.21/1.60  New demodulators BS            1
% 1.21/1.60  Back demodulated BS            0
% 1.21/1.60  
% 1.21/1.60  Clauses or pairs given      2576
% 1.21/1.60  Clauses generated           6167
% 1.21/1.60  Forward subsumed            2916
% 1.21/1.60  Deleted by weight              0
% 1.21/1.60  Deleted by variable count      0
% 1.21/1.60  Kept                        3251
% 1.21/1.60  New demodulators            2197
% 1.21/1.60  Back demodulated            3030
% 1.21/1.60  Ordered paramod prunes         0
% 1.21/1.60  Basic paramod prunes       29684
% 1.21/1.60  Prime paramod prunes          10
% 1.21/1.60  Semantic prunes                0
% 1.21/1.60  
% 1.21/1.60  Rewrite attmepts          206766
% 1.21/1.60  Rewrites                   18325
% 1.21/1.60  
% 1.21/1.60  FPA overloads                  0
% 1.21/1.60  FPA underloads                 0
% 1.21/1.60  
% 1.21/1.60  Usable size                    0
% 1.21/1.60  Sos size                     222
% 1.21/1.60  Demodulators size            216
% 1.21/1.60  Passive size                   0
% 1.21/1.60  Disabled size               3030
% 1.21/1.60  
% 1.21/1.60  Proofs found                   1
% 1.21/1.60  
% 1.21/1.60  ----------- times (seconds) ----------- Tue Jun 14 00:46:04 2022
% 1.21/1.60  
% 1.21/1.60  user CPU time             0.45   (0 hr, 0 min, 0 sec)
% 1.21/1.60  system CPU time           0.10   (0 hr, 0 min, 0 sec)
% 1.21/1.60  wall-clock time           0      (0 hr, 0 min, 0 sec)
% 1.21/1.60  input time                0.00
% 1.21/1.60  paramodulation time       0.03
% 1.21/1.60  demodulation time         0.05
% 1.21/1.60  orient time               0.02
% 1.21/1.60  weigh time                0.00
% 1.21/1.60  forward subsume time      0.01
% 1.21/1.60  back demod find time      0.06
% 1.21/1.60  conflict time             0.00
% 1.21/1.60  LRPO time                 0.01
% 1.21/1.60  store clause time         0.18
% 1.21/1.60  disable clause time       0.05
% 1.21/1.60  prime paramod time        0.01
% 1.21/1.60  semantics time            0.00
% 1.21/1.60  
% 1.21/1.60  EQP interrupted
%------------------------------------------------------------------------------