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SPASS---3.9.UNS-Ref.s

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%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : GRP264-1 : TPTP v8.1.0. Released v2.5.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n010.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 11:46:35 EDT 2022

% Result   : Unsatisfiable 0.19s 0.47s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : GRP264-1 : TPTP v8.1.0. Released v2.5.0.
% 0.07/0.13  % Command  : run_spass %d %s
% 0.13/0.34  % Computer : n010.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  : 600
% 0.13/0.34  % DateTime : Mon Jun 13 17:43:24 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.19/0.47  
% 0.19/0.47  SPASS V 3.9 
% 0.19/0.47  SPASS beiseite: Proof found.
% 0.19/0.47  % SZS status Theorem
% 0.19/0.47  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.19/0.47  SPASS derived 514 clauses, backtracked 176 clauses, performed 9 splits and kept 341 clauses.
% 0.19/0.47  SPASS allocated 63537 KBytes.
% 0.19/0.47  SPASS spent	0:00:00.12 on the problem.
% 0.19/0.47  		0:00:00.04 for the input.
% 0.19/0.47  		0:00:00.00 for the FLOTTER CNF translation.
% 0.19/0.47  		0:00:00.00 for inferences.
% 0.19/0.47  		0:00:00.00 for the backtracking.
% 0.19/0.47  		0:00:00.05 for the reduction.
% 0.19/0.47  
% 0.19/0.47  
% 0.19/0.47  Here is a proof with depth 5, length 191 :
% 0.19/0.47  % SZS output start Refutation
% 0.19/0.47  1[0:Inp] ||  -> equal(multiply(sk_c3,sk_c9),sk_c8)** equal(multiply(sk_c1,sk_c9),sk_c8).
% 0.19/0.47  2[0:Inp] ||  -> equal(inverse(sk_c3),sk_c9) equal(multiply(sk_c1,sk_c9),sk_c8)**.
% 0.19/0.47  4[0:Inp] ||  -> equal(inverse(sk_c4),sk_c7) equal(multiply(sk_c1,sk_c9),sk_c8)**.
% 0.19/0.47  7[0:Inp] ||  -> equal(inverse(sk_c5),sk_c8) equal(multiply(sk_c1,sk_c9),sk_c8)**.
% 0.19/0.47  8[0:Inp] ||  -> equal(inverse(sk_c1),sk_c9) equal(multiply(sk_c3,sk_c9),sk_c8)**.
% 0.19/0.47  9[0:Inp] ||  -> equal(inverse(sk_c3),sk_c9)** equal(inverse(sk_c1),sk_c9).
% 0.19/0.47  10[0:Inp] ||  -> equal(inverse(sk_c1),sk_c9) equal(multiply(sk_c4,sk_c7),sk_c8)**.
% 0.19/0.47  11[0:Inp] ||  -> equal(inverse(sk_c4),sk_c7)** equal(inverse(sk_c1),sk_c9).
% 0.19/0.47  12[0:Inp] ||  -> equal(inverse(sk_c1),sk_c9) equal(multiply(sk_c8,sk_c6),sk_c7)**.
% 0.19/0.47  13[0:Inp] ||  -> equal(inverse(sk_c1),sk_c9) equal(multiply(sk_c5,sk_c8),sk_c6)**.
% 0.19/0.47  14[0:Inp] ||  -> equal(inverse(sk_c5),sk_c8)** equal(inverse(sk_c1),sk_c9).
% 0.19/0.47  17[0:Inp] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8) equal(multiply(sk_c2,sk_c8),sk_c7)**.
% 0.19/0.47  18[0:Inp] ||  -> equal(inverse(sk_c4),sk_c7) equal(multiply(sk_c2,sk_c8),sk_c7)**.
% 0.19/0.47  19[0:Inp] ||  -> equal(multiply(sk_c8,sk_c6),sk_c7) equal(multiply(sk_c2,sk_c8),sk_c7)**.
% 0.19/0.47  20[0:Inp] ||  -> equal(multiply(sk_c5,sk_c8),sk_c6) equal(multiply(sk_c2,sk_c8),sk_c7)**.
% 0.19/0.47  21[0:Inp] ||  -> equal(inverse(sk_c5),sk_c8) equal(multiply(sk_c2,sk_c8),sk_c7)**.
% 0.19/0.47  22[0:Inp] ||  -> equal(inverse(sk_c2),sk_c8) equal(multiply(sk_c3,sk_c9),sk_c8)**.
% 0.19/0.47  23[0:Inp] ||  -> equal(inverse(sk_c3),sk_c9) equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.47  24[0:Inp] ||  -> equal(inverse(sk_c2),sk_c8) equal(multiply(sk_c4,sk_c7),sk_c8)**.
% 0.19/0.47  25[0:Inp] ||  -> equal(inverse(sk_c4),sk_c7) equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.47  26[0:Inp] ||  -> equal(inverse(sk_c2),sk_c8) equal(multiply(sk_c8,sk_c6),sk_c7)**.
% 0.19/0.47  27[0:Inp] ||  -> equal(inverse(sk_c2),sk_c8) equal(multiply(sk_c5,sk_c8),sk_c6)**.
% 0.19/0.47  28[0:Inp] ||  -> equal(inverse(sk_c5),sk_c8) equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.47  29[0:Inp] || equal(multiply(u,sk_c9),sk_c8)** equal(inverse(u),sk_c9) equal(multiply(v,sk_c8),sk_c7)** equal(inverse(v),sk_c8) equal(multiply(w,sk_c9),sk_c8)** equal(inverse(w),sk_c9) equal(multiply(x,sk_c7),sk_c8)** equal(inverse(x),sk_c7) equal(multiply(sk_c8,y),sk_c7)** equal(multiply(z,sk_c8),y)* equal(inverse(z),sk_c8) -> .
% 0.19/0.47  30[0:Inp] ||  -> equal(multiply(identity,u),u)**.
% 0.19/0.47  31[0:Inp] ||  -> equal(multiply(inverse(u),u),identity)**.
% 0.19/0.47  32[0:Inp] ||  -> equal(multiply(multiply(u,v),w),multiply(u,multiply(v,w)))**.
% 0.19/0.47  33[0:Con:29.4] || equal(inverse(u),sk_c8) equal(inverse(v),sk_c7) equal(inverse(w),sk_c8) equal(inverse(x),sk_c9) equal(multiply(u,sk_c8),y)*+ equal(multiply(v,sk_c7),sk_c8)** equal(multiply(w,sk_c8),sk_c7)** equal(multiply(x,sk_c9),sk_c8)** equal(multiply(sk_c8,y),sk_c7)** -> .
% 0.19/0.47  34[1:Spt:33.3,33.7] || equal(inverse(u),sk_c9) equal(multiply(u,sk_c9),sk_c8)** -> .
% 0.19/0.47  37[2:Spt:14.1] ||  -> equal(inverse(sk_c1),sk_c9)**.
% 0.19/0.47  43[3:Spt:4.1] ||  -> equal(multiply(sk_c1,sk_c9),sk_c8)**.
% 0.19/0.47  45[3:SpL:43.0,34.1] || equal(inverse(sk_c1),sk_c9)** equal(sk_c8,sk_c8) -> .
% 0.19/0.47  46[3:Obv:45.1] || equal(inverse(sk_c1),sk_c9)** -> .
% 0.19/0.47  47[3:Rew:37.0,46.0] || equal(sk_c9,sk_c9)* -> .
% 0.19/0.47  48[3:Obv:47.0] ||  -> .
% 0.19/0.47  49[3:Spt:48.0,4.1,43.0] || equal(multiply(sk_c1,sk_c9),sk_c8)** -> .
% 0.19/0.47  50[3:Spt:48.0,4.0] ||  -> equal(inverse(sk_c4),sk_c7)**.
% 0.19/0.47  52[3:MRR:2.1,49.0] ||  -> equal(inverse(sk_c3),sk_c9)**.
% 0.19/0.47  56[3:MRR:1.1,49.0] ||  -> equal(multiply(sk_c3,sk_c9),sk_c8)**.
% 0.19/0.47  64[3:SpL:56.0,34.1] || equal(inverse(sk_c3),sk_c9)** equal(sk_c8,sk_c8) -> .
% 0.19/0.47  65[3:Obv:64.1] || equal(inverse(sk_c3),sk_c9)** -> .
% 0.19/0.47  66[3:Rew:52.0,65.0] || equal(sk_c9,sk_c9)* -> .
% 0.19/0.47  67[3:Obv:66.0] ||  -> .
% 0.19/0.47  68[2:Spt:67.0,14.1,37.0] || equal(inverse(sk_c1),sk_c9)** -> .
% 0.19/0.47  69[2:Spt:67.0,14.0] ||  -> equal(inverse(sk_c5),sk_c8)**.
% 0.19/0.47  71[2:MRR:9.1,68.0] ||  -> equal(inverse(sk_c3),sk_c9)**.
% 0.19/0.47  75[2:MRR:8.0,68.0] ||  -> equal(multiply(sk_c3,sk_c9),sk_c8)**.
% 0.19/0.47  83[2:SpL:75.0,34.1] || equal(inverse(sk_c3),sk_c9)** equal(sk_c8,sk_c8) -> .
% 0.19/0.47  84[2:Obv:83.1] || equal(inverse(sk_c3),sk_c9)** -> .
% 0.19/0.47  85[2:Rew:71.0,84.0] || equal(sk_c9,sk_c9)* -> .
% 0.19/0.47  86[2:Obv:85.0] ||  -> .
% 0.19/0.47  87[1:Spt:86.0,33.0,33.1,33.2,33.4,33.5,33.6,33.8] || equal(inverse(u),sk_c8) equal(inverse(v),sk_c7) equal(inverse(w),sk_c8) equal(multiply(u,sk_c8),x)*+ equal(multiply(v,sk_c7),sk_c8)** equal(multiply(w,sk_c8),sk_c7)** equal(multiply(sk_c8,x),sk_c7)** -> .
% 0.19/0.47  88[1:EqR:87.3] || equal(inverse(u),sk_c8) equal(inverse(v),sk_c7) equal(inverse(w),sk_c8) equal(multiply(v,sk_c7),sk_c8)** equal(multiply(w,sk_c8),sk_c7)** equal(multiply(sk_c8,multiply(u,sk_c8)),sk_c7)** -> .
% 0.19/0.47  90[2:Spt:11.1] ||  -> equal(inverse(sk_c1),sk_c9)**.
% 0.19/0.47  92[3:Spt:28.1] ||  -> equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.47  94[4:Spt:7.1] ||  -> equal(multiply(sk_c1,sk_c9),sk_c8)**.
% 0.19/0.47  96[5:Spt:21.1] ||  -> equal(multiply(sk_c2,sk_c8),sk_c7)**.
% 0.19/0.47  98[5:SpL:96.0,87.3] || equal(inverse(sk_c2),sk_c8) equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(sk_c7,w) equal(multiply(u,sk_c7),sk_c8)** equal(multiply(v,sk_c8),sk_c7)** equal(multiply(sk_c8,w),sk_c7)** -> .
% 0.19/0.47  99[5:Rew:92.0,98.0] || equal(sk_c8,sk_c8) equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(sk_c7,w) equal(multiply(u,sk_c7),sk_c8)** equal(multiply(v,sk_c8),sk_c7)** equal(multiply(sk_c8,w),sk_c7)** -> .
% 0.19/0.47  100[5:Obv:99.0] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(sk_c7,w) equal(multiply(u,sk_c7),sk_c8)** equal(multiply(v,sk_c8),sk_c7)** equal(multiply(sk_c8,w),sk_c7)** -> .
% 0.19/0.47  102[2:SpR:90.0,31.0] ||  -> equal(multiply(sk_c9,sk_c1),identity)**.
% 0.19/0.47  103[3:SpR:92.0,31.0] ||  -> equal(multiply(sk_c8,sk_c2),identity)**.
% 0.19/0.47  110[0:SpR:31.0,32.0] ||  -> equal(multiply(inverse(u),multiply(u,v)),multiply(identity,v))**.
% 0.19/0.47  112[3:SpR:103.0,32.0] ||  -> equal(multiply(sk_c8,multiply(sk_c2,u)),multiply(identity,u))**.
% 0.19/0.47  116[3:Rew:30.0,112.0] ||  -> equal(multiply(sk_c8,multiply(sk_c2,u)),u)**.
% 0.19/0.47  118[0:Rew:30.0,110.0] ||  -> equal(multiply(inverse(u),multiply(u,v)),v)**.
% 0.19/0.47  122[5:SpR:96.0,116.0] ||  -> equal(multiply(sk_c8,sk_c7),sk_c8)**.
% 0.19/0.47  125[0:SpR:118.0,118.0] ||  -> equal(multiply(inverse(inverse(u)),v),multiply(u,v))**.
% 0.19/0.47  128[0:SpR:31.0,118.0] ||  -> equal(multiply(inverse(inverse(u)),identity),u)**.
% 0.19/0.47  133[2:SpR:102.0,118.0] ||  -> equal(multiply(inverse(sk_c9),identity),sk_c1)**.
% 0.19/0.47  140[0:Rew:125.0,128.0] ||  -> equal(multiply(u,identity),u)**.
% 0.19/0.47  141[2:Rew:140.0,133.0] ||  -> equal(inverse(sk_c9),sk_c1)**.
% 0.19/0.47  143[2:SpR:141.0,31.0] ||  -> equal(multiply(sk_c1,sk_c9),identity)**.
% 0.19/0.47  144[2:SpR:141.0,118.0] ||  -> equal(multiply(sk_c1,multiply(sk_c9,u)),u)**.
% 0.19/0.47  146[4:Rew:94.0,143.0] ||  -> equal(identity,sk_c8)**.
% 0.19/0.47  147[4:Rew:146.0,30.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.19/0.47  148[4:Rew:146.0,31.0] ||  -> equal(multiply(inverse(u),u),sk_c8)**.
% 0.19/0.47  150[4:Rew:146.0,103.0] ||  -> equal(multiply(sk_c8,sk_c2),sk_c8)**.
% 0.19/0.47  154[4:Rew:146.0,140.0] ||  -> equal(multiply(u,sk_c8),u)**.
% 0.19/0.47  157[5:Rew:147.0,122.0] ||  -> equal(sk_c7,sk_c8)**.
% 0.19/0.47  161[5:Rew:147.0,100.5] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(sk_c7,w)* equal(multiply(u,sk_c7),sk_c8)** equal(multiply(v,sk_c8),sk_c7)** equal(w,sk_c7)* -> .
% 0.19/0.47  164[4:Rew:147.0,150.0] ||  -> equal(sk_c2,sk_c8)**.
% 0.19/0.47  165[4:Rew:164.0,92.0] ||  -> equal(inverse(sk_c8),sk_c8)**.
% 0.19/0.47  172[5:Obv:161.2] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(multiply(u,sk_c7),sk_c8)** equal(multiply(v,sk_c8),sk_c7)** equal(w,sk_c7)* -> .
% 0.19/0.47  173[5:Con:172.4] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(multiply(u,sk_c7),sk_c8)** equal(multiply(v,sk_c8),sk_c7)** -> .
% 0.19/0.47  174[5:Rew:154.0,173.3,157.0,173.3,154.0,173.2,157.0,173.2,157.0,173.0] || equal(inverse(u),sk_c8)** equal(inverse(v),sk_c8)** equal(u,sk_c8) equal(v,sk_c8) -> .
% 0.19/0.47  175[5:Con:174.1] || equal(inverse(u),sk_c8)** equal(u,sk_c8) -> .
% 0.19/0.47  212[4:SpR:148.0,118.0] ||  -> equal(multiply(inverse(inverse(u)),sk_c8),u)**.
% 0.19/0.47  218[4:Rew:154.0,212.0] ||  -> equal(inverse(inverse(u)),u)**.
% 0.19/0.47  283[5:SpL:165.0,175.0] || equal(sk_c8,sk_c8)* equal(sk_c8,sk_c8)* -> .
% 0.19/0.48  285[5:Obv:283.1] ||  -> .
% 0.19/0.48  286[5:Spt:285.0,21.1,96.0] || equal(multiply(sk_c2,sk_c8),sk_c7)** -> .
% 0.19/0.48  287[5:Spt:285.0,21.0] ||  -> equal(inverse(sk_c5),sk_c8)**.
% 0.19/0.48  288[5:Rew:147.0,286.0,164.0,286.0] || equal(sk_c7,sk_c8)** -> .
% 0.19/0.48  289[4:Rew:164.0,18.1,154.0,18.1] ||  -> equal(inverse(sk_c4),sk_c7)** equal(sk_c7,sk_c8).
% 0.19/0.48  290[5:MRR:289.1,288.0] ||  -> equal(inverse(sk_c4),sk_c7)**.
% 0.19/0.48  293[4:Rew:164.0,20.1,154.0,20.1,154.0,20.0] ||  -> equal(sk_c5,sk_c6)** equal(sk_c7,sk_c8).
% 0.19/0.48  294[5:MRR:293.1,288.0] ||  -> equal(sk_c5,sk_c6)**.
% 0.19/0.48  295[5:Rew:294.0,287.0] ||  -> equal(inverse(sk_c6),sk_c8)**.
% 0.19/0.48  296[4:Rew:164.0,19.1,154.0,19.1,147.0,19.0] ||  -> equal(sk_c6,sk_c7)** equal(sk_c7,sk_c8).
% 0.19/0.48  297[5:MRR:296.1,288.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.19/0.48  299[5:Rew:297.0,295.0] ||  -> equal(inverse(sk_c7),sk_c8)**.
% 0.19/0.48  300[4:Rew:164.0,17.1,154.0,17.1] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8)** equal(sk_c7,sk_c8).
% 0.19/0.48  301[5:MRR:300.1,288.0] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8)**.
% 0.19/0.48  317[5:SpR:290.0,218.0] ||  -> equal(inverse(sk_c7),sk_c4)**.
% 0.19/0.48  321[5:Rew:299.0,317.0] ||  -> equal(sk_c4,sk_c8)**.
% 0.19/0.48  323[5:Rew:321.0,301.0] ||  -> equal(multiply(sk_c8,sk_c7),sk_c8)**.
% 0.19/0.48  332[5:Rew:147.0,323.0] ||  -> equal(sk_c7,sk_c8)**.
% 0.19/0.48  333[5:MRR:332.0,288.0] ||  -> .
% 0.19/0.48  337[4:Spt:333.0,7.1,94.0] || equal(multiply(sk_c1,sk_c9),sk_c8)** -> .
% 0.19/0.48  338[4:Spt:333.0,7.0] ||  -> equal(inverse(sk_c5),sk_c8)**.
% 0.19/0.48  339[4:Rew:143.0,337.0] || equal(identity,sk_c8)** -> .
% 0.19/0.48  340[2:Rew:143.0,2.1] ||  -> equal(inverse(sk_c3),sk_c9)** equal(identity,sk_c8).
% 0.19/0.48  341[4:MRR:340.1,339.0] ||  -> equal(inverse(sk_c3),sk_c9)**.
% 0.19/0.48  350[2:Rew:143.0,1.1] ||  -> equal(multiply(sk_c3,sk_c9),sk_c8)** equal(identity,sk_c8).
% 0.19/0.48  351[4:MRR:350.1,339.0] ||  -> equal(multiply(sk_c3,sk_c9),sk_c8)**.
% 0.19/0.48  405[4:SpR:351.0,118.0] ||  -> equal(multiply(inverse(sk_c3),sk_c8),sk_c9)**.
% 0.19/0.48  407[4:Rew:341.0,405.0] ||  -> equal(multiply(sk_c9,sk_c8),sk_c9)**.
% 0.19/0.48  417[4:SpR:407.0,118.0] ||  -> equal(multiply(inverse(sk_c9),sk_c9),sk_c8)**.
% 0.19/0.48  422[4:Rew:143.0,417.0,141.0,417.0] ||  -> equal(identity,sk_c8)**.
% 0.19/0.48  423[4:MRR:422.0,339.0] ||  -> .
% 0.19/0.48  424[3:Spt:423.0,28.1,92.0] || equal(inverse(sk_c2),sk_c8)** -> .
% 0.19/0.48  425[3:Spt:423.0,28.0] ||  -> equal(inverse(sk_c5),sk_c8)**.
% 0.19/0.48  426[3:MRR:23.1,424.0] ||  -> equal(inverse(sk_c3),sk_c9)**.
% 0.19/0.48  427[3:MRR:25.1,424.0] ||  -> equal(inverse(sk_c4),sk_c7)**.
% 0.19/0.48  428[3:MRR:27.0,424.0] ||  -> equal(multiply(sk_c5,sk_c8),sk_c6)**.
% 0.19/0.48  429[3:MRR:26.0,424.0] ||  -> equal(multiply(sk_c8,sk_c6),sk_c7)**.
% 0.19/0.48  430[3:MRR:24.0,424.0] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8)**.
% 0.19/0.48  431[3:MRR:22.0,424.0] ||  -> equal(multiply(sk_c3,sk_c9),sk_c8)**.
% 0.19/0.48  439[3:SpR:428.0,118.0] ||  -> equal(multiply(inverse(sk_c5),sk_c6),sk_c8)**.
% 0.19/0.48  441[3:Rew:425.0,439.0] ||  -> equal(multiply(sk_c8,sk_c6),sk_c8)**.
% 0.19/0.48  442[3:Rew:429.0,441.0] ||  -> equal(sk_c7,sk_c8)**.
% 0.19/0.48  443[3:Rew:442.0,427.0] ||  -> equal(inverse(sk_c4),sk_c8)**.
% 0.19/0.48  444[3:Rew:442.0,429.0] ||  -> equal(multiply(sk_c8,sk_c6),sk_c8)**.
% 0.19/0.48  445[3:Rew:442.0,430.0] ||  -> equal(multiply(sk_c4,sk_c8),sk_c8)**.
% 0.19/0.48  447[3:Rew:442.0,88.1] || equal(inverse(u),sk_c8) equal(inverse(v),sk_c8) equal(inverse(w),sk_c8) equal(multiply(v,sk_c7),sk_c8)** equal(multiply(w,sk_c8),sk_c7)** equal(multiply(sk_c8,multiply(u,sk_c8)),sk_c7)** -> .
% 0.19/0.48  452[3:Rew:442.0,447.5,442.0,447.4,442.0,447.3] || equal(inverse(u),sk_c8) equal(inverse(v),sk_c8) equal(inverse(w),sk_c8) equal(multiply(v,sk_c8),sk_c8)** equal(multiply(w,sk_c8),sk_c8)** equal(multiply(sk_c8,multiply(u,sk_c8)),sk_c8)** -> .
% 0.19/0.48  453[3:Con:452.2] || equal(inverse(u),sk_c8) equal(inverse(v),sk_c8) equal(multiply(v,sk_c8),sk_c8)** equal(multiply(sk_c8,multiply(u,sk_c8)),sk_c8)** -> .
% 0.19/0.48  466[3:SpR:431.0,118.0] ||  -> equal(multiply(inverse(sk_c3),sk_c8),sk_c9)**.
% 0.19/0.48  468[3:Rew:426.0,466.0] ||  -> equal(multiply(sk_c9,sk_c8),sk_c9)**.
% 0.19/0.48  470[3:SpR:444.0,118.0] ||  -> equal(multiply(inverse(sk_c8),sk_c8),sk_c6)**.
% 0.19/0.48  472[3:Rew:31.0,470.0] ||  -> equal(identity,sk_c6)**.
% 0.19/0.48  473[3:Rew:472.0,143.0] ||  -> equal(multiply(sk_c1,sk_c9),sk_c6)**.
% 0.19/0.48  475[3:Rew:472.0,30.0] ||  -> equal(multiply(sk_c6,u),u)**.
% 0.19/0.48  476[3:Rew:472.0,140.0] ||  -> equal(multiply(u,sk_c6),u)**.
% 0.19/0.48  490[3:SpR:468.0,144.0] ||  -> equal(multiply(sk_c1,sk_c9),sk_c8)**.
% 0.19/0.48  492[3:Rew:473.0,490.0] ||  -> equal(sk_c6,sk_c8)**.
% 0.19/0.48  497[3:Rew:492.0,475.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.19/0.48  498[3:Rew:492.0,476.0] ||  -> equal(multiply(u,sk_c8),u)**.
% 0.19/0.48  508[3:Rew:497.0,453.3] || equal(inverse(u),sk_c8) equal(inverse(v),sk_c8) equal(multiply(v,sk_c8),sk_c8)** equal(multiply(u,sk_c8),sk_c8)** -> .
% 0.19/0.48  511[3:Rew:498.0,445.0] ||  -> equal(sk_c4,sk_c8)**.
% 0.19/0.48  513[3:Rew:511.0,443.0] ||  -> equal(inverse(sk_c8),sk_c8)**.
% 0.19/0.48  522[3:Con:508.0] || equal(inverse(u),sk_c8) equal(multiply(u,sk_c8),sk_c8)** -> .
% 0.19/0.48  523[3:Rew:498.0,522.1] || equal(inverse(u),sk_c8)** equal(u,sk_c8) -> .
% 0.19/0.48  635[3:SpL:513.0,523.0] || equal(sk_c8,sk_c8)* equal(sk_c8,sk_c8)* -> .
% 0.19/0.48  637[3:Obv:635.1] ||  -> .
% 0.19/0.48  638[2:Spt:637.0,11.1,90.0] || equal(inverse(sk_c1),sk_c9)** -> .
% 0.19/0.48  639[2:Spt:637.0,11.0] ||  -> equal(inverse(sk_c4),sk_c7)**.
% 0.19/0.48  640[2:MRR:9.1,638.0] ||  -> equal(inverse(sk_c3),sk_c9)**.
% 0.19/0.48  641[2:MRR:14.1,638.0] ||  -> equal(inverse(sk_c5),sk_c8)**.
% 0.19/0.48  642[2:MRR:13.0,638.0] ||  -> equal(multiply(sk_c5,sk_c8),sk_c6)**.
% 0.19/0.48  643[2:MRR:12.0,638.0] ||  -> equal(multiply(sk_c8,sk_c6),sk_c7)**.
% 0.19/0.48  644[2:MRR:10.0,638.0] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8)**.
% 0.19/0.48  645[2:MRR:8.0,638.0] ||  -> equal(multiply(sk_c3,sk_c9),sk_c8)**.
% 0.19/0.48  653[2:SpR:642.0,118.0] ||  -> equal(multiply(inverse(sk_c5),sk_c6),sk_c8)**.
% 0.19/0.48  655[2:Rew:641.0,653.0] ||  -> equal(multiply(sk_c8,sk_c6),sk_c8)**.
% 0.19/0.48  656[2:Rew:643.0,655.0] ||  -> equal(sk_c7,sk_c8)**.
% 0.19/0.48  657[2:Rew:656.0,639.0] ||  -> equal(inverse(sk_c4),sk_c8)**.
% 0.19/0.48  658[2:Rew:656.0,643.0] ||  -> equal(multiply(sk_c8,sk_c6),sk_c8)**.
% 0.19/0.48  659[2:Rew:656.0,644.0] ||  -> equal(multiply(sk_c4,sk_c8),sk_c8)**.
% 0.19/0.48  661[2:Rew:656.0,88.1] || equal(inverse(u),sk_c8) equal(inverse(v),sk_c8) equal(inverse(w),sk_c8) equal(multiply(v,sk_c7),sk_c8)** equal(multiply(w,sk_c8),sk_c7)** equal(multiply(sk_c8,multiply(u,sk_c8)),sk_c7)** -> .
% 0.19/0.48  666[2:Rew:656.0,661.5,656.0,661.4,656.0,661.3] || equal(inverse(u),sk_c8) equal(inverse(v),sk_c8) equal(inverse(w),sk_c8) equal(multiply(v,sk_c8),sk_c8)** equal(multiply(w,sk_c8),sk_c8)** equal(multiply(sk_c8,multiply(u,sk_c8)),sk_c8)** -> .
% 0.19/0.48  667[2:Con:666.2] || equal(inverse(u),sk_c8) equal(inverse(v),sk_c8) equal(multiply(v,sk_c8),sk_c8)** equal(multiply(sk_c8,multiply(u,sk_c8)),sk_c8)** -> .
% 0.19/0.48  677[2:SpR:645.0,118.0] ||  -> equal(multiply(inverse(sk_c3),sk_c8),sk_c9)**.
% 0.19/0.48  679[2:Rew:640.0,677.0] ||  -> equal(multiply(sk_c9,sk_c8),sk_c9)**.
% 0.19/0.48  684[2:SpR:658.0,118.0] ||  -> equal(multiply(inverse(sk_c8),sk_c8),sk_c6)**.
% 0.19/0.48  686[2:Rew:31.0,684.0] ||  -> equal(identity,sk_c6)**.
% 0.19/0.48  687[2:Rew:686.0,140.0] ||  -> equal(multiply(u,sk_c6),u)**.
% 0.19/0.48  688[2:Rew:686.0,30.0] ||  -> equal(multiply(sk_c6,u),u)**.
% 0.19/0.48  691[2:Rew:686.0,31.0] ||  -> equal(multiply(inverse(u),u),sk_c6)**.
% 0.19/0.48  701[2:SpR:679.0,118.0] ||  -> equal(multiply(inverse(sk_c9),sk_c9),sk_c8)**.
% 0.19/0.48  703[2:Rew:691.0,701.0] ||  -> equal(sk_c6,sk_c8)**.
% 0.19/0.48  706[2:Rew:703.0,687.0] ||  -> equal(multiply(u,sk_c8),u)**.
% 0.19/0.48  707[2:Rew:703.0,688.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.19/0.48  712[2:Rew:706.0,659.0] ||  -> equal(sk_c4,sk_c8)**.
% 0.19/0.48  715[2:Rew:706.0,667.3] || equal(inverse(u),sk_c8) equal(inverse(v),sk_c8) equal(multiply(v,sk_c8),sk_c8)** equal(multiply(sk_c8,u),sk_c8)** -> .
% 0.19/0.48  717[2:Rew:712.0,657.0] ||  -> equal(inverse(sk_c8),sk_c8)**.
% 0.19/0.48  729[2:Rew:707.0,715.3,706.0,715.2] || equal(inverse(u),sk_c8)** equal(inverse(v),sk_c8)** equal(v,sk_c8) equal(u,sk_c8) -> .
% 0.19/0.48  730[2:Con:729.0] || equal(inverse(u),sk_c8)** equal(u,sk_c8) -> .
% 0.19/0.48  834[2:SpL:717.0,730.0] || equal(sk_c8,sk_c8)* equal(sk_c8,sk_c8)* -> .
% 0.19/0.48  837[2:Obv:834.1] ||  -> .
% 0.19/0.48  % SZS output end Refutation
% 0.19/0.48  Formulae used in the proof : prove_this_1 prove_this_2 prove_this_4 prove_this_7 prove_this_8 prove_this_9 prove_this_10 prove_this_11 prove_this_12 prove_this_13 prove_this_14 prove_this_17 prove_this_18 prove_this_19 prove_this_20 prove_this_21 prove_this_22 prove_this_23 prove_this_24 prove_this_25 prove_this_26 prove_this_27 prove_this_28 prove_this_29 left_identity left_inverse associativity
% 0.19/0.48  
%------------------------------------------------------------------------------