TSTP Solution File: GRP294-1 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : GRP294-1 : TPTP v8.1.0. Released v2.5.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n005.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 11:46:43 EDT 2022

% Result   : Unsatisfiable 0.21s 0.47s
% Output   : Refutation 0.21s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.13  % Problem  : GRP294-1 : TPTP v8.1.0. Released v2.5.0.
% 0.08/0.14  % Command  : run_spass %d %s
% 0.15/0.35  % Computer : n005.cluster.edu
% 0.15/0.35  % Model    : x86_64 x86_64
% 0.15/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.35  % Memory   : 8042.1875MB
% 0.15/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.35  % CPULimit : 300
% 0.15/0.35  % WCLimit  : 600
% 0.15/0.35  % DateTime : Mon Jun 13 08:52:39 EDT 2022
% 0.15/0.35  % CPUTime  : 
% 0.21/0.47  
% 0.21/0.47  SPASS V 3.9 
% 0.21/0.47  SPASS beiseite: Proof found.
% 0.21/0.47  % SZS status Theorem
% 0.21/0.47  Problem: /export/starexec/sandbox2/benchmark/theBenchmark.p 
% 0.21/0.47  SPASS derived 570 clauses, backtracked 262 clauses, performed 10 splits and kept 519 clauses.
% 0.21/0.47  SPASS allocated 63503 KBytes.
% 0.21/0.47  SPASS spent	0:00:00.11 on the problem.
% 0.21/0.47  		0:00:00.04 for the input.
% 0.21/0.47  		0:00:00.00 for the FLOTTER CNF translation.
% 0.21/0.47  		0:00:00.00 for inferences.
% 0.21/0.47  		0:00:00.00 for the backtracking.
% 0.21/0.47  		0:00:00.05 for the reduction.
% 0.21/0.47  
% 0.21/0.47  
% 0.21/0.47  Here is a proof with depth 3, length 256 :
% 0.21/0.47  % SZS output start Refutation
% 0.21/0.47  1[0:Inp] ||  -> equal(multiply(sk_c6,sk_c7),sk_c5)** equal(multiply(sk_c7,sk_c6),sk_c5).
% 0.21/0.47  3[0:Inp] ||  -> equal(inverse(sk_c3),sk_c6) equal(multiply(sk_c7,sk_c6),sk_c5)**.
% 0.21/0.47  4[0:Inp] ||  -> equal(inverse(sk_c4),sk_c6) equal(multiply(sk_c7,sk_c6),sk_c5)**.
% 0.21/0.47  5[0:Inp] ||  -> equal(multiply(sk_c4,sk_c5),sk_c6)** equal(multiply(sk_c7,sk_c6),sk_c5).
% 0.21/0.47  7[0:Inp] ||  -> equal(multiply(sk_c3,sk_c6),sk_c7) equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.21/0.47  8[0:Inp] ||  -> equal(inverse(sk_c3),sk_c6) equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.21/0.47  9[0:Inp] ||  -> equal(inverse(sk_c4),sk_c6) equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.21/0.47  10[0:Inp] ||  -> equal(multiply(sk_c4,sk_c5),sk_c6) equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.21/0.47  12[0:Inp] ||  -> equal(inverse(sk_c1),sk_c7) equal(multiply(sk_c3,sk_c6),sk_c7)**.
% 0.21/0.47  13[0:Inp] ||  -> equal(inverse(sk_c3),sk_c6) equal(inverse(sk_c1),sk_c7)**.
% 0.21/0.47  14[0:Inp] ||  -> equal(inverse(sk_c4),sk_c6) equal(inverse(sk_c1),sk_c7)**.
% 0.21/0.47  15[0:Inp] ||  -> equal(inverse(sk_c1),sk_c7) equal(multiply(sk_c4,sk_c5),sk_c6)**.
% 0.21/0.47  16[0:Inp] ||  -> equal(multiply(sk_c6,sk_c7),sk_c5)** equal(multiply(sk_c7,sk_c5),sk_c6).
% 0.21/0.47  17[0:Inp] ||  -> equal(multiply(sk_c3,sk_c6),sk_c7)** equal(multiply(sk_c7,sk_c5),sk_c6).
% 0.21/0.47  18[0:Inp] ||  -> equal(inverse(sk_c3),sk_c6) equal(multiply(sk_c7,sk_c5),sk_c6)**.
% 0.21/0.47  19[0:Inp] ||  -> equal(inverse(sk_c4),sk_c6) equal(multiply(sk_c7,sk_c5),sk_c6)**.
% 0.21/0.47  20[0:Inp] ||  -> equal(multiply(sk_c4,sk_c5),sk_c6)** equal(multiply(sk_c7,sk_c5),sk_c6).
% 0.21/0.47  21[0:Inp] ||  -> equal(multiply(sk_c6,sk_c7),sk_c5)** equal(multiply(sk_c2,sk_c7),sk_c5).
% 0.21/0.47  22[0:Inp] ||  -> equal(multiply(sk_c3,sk_c6),sk_c7) equal(multiply(sk_c2,sk_c7),sk_c5)**.
% 0.21/0.47  23[0:Inp] ||  -> equal(inverse(sk_c3),sk_c6) equal(multiply(sk_c2,sk_c7),sk_c5)**.
% 0.21/0.47  24[0:Inp] ||  -> equal(inverse(sk_c4),sk_c6) equal(multiply(sk_c2,sk_c7),sk_c5)**.
% 0.21/0.47  25[0:Inp] ||  -> equal(multiply(sk_c4,sk_c5),sk_c6) equal(multiply(sk_c2,sk_c7),sk_c5)**.
% 0.21/0.47  26[0:Inp] ||  -> equal(inverse(sk_c2),sk_c7) equal(multiply(sk_c6,sk_c7),sk_c5)**.
% 0.21/0.47  27[0:Inp] ||  -> equal(inverse(sk_c2),sk_c7) equal(multiply(sk_c3,sk_c6),sk_c7)**.
% 0.21/0.47  28[0:Inp] ||  -> equal(inverse(sk_c3),sk_c6) equal(inverse(sk_c2),sk_c7)**.
% 0.21/0.47  29[0:Inp] ||  -> equal(inverse(sk_c4),sk_c6) equal(inverse(sk_c2),sk_c7)**.
% 0.21/0.47  30[0:Inp] ||  -> equal(inverse(sk_c2),sk_c7) equal(multiply(sk_c4,sk_c5),sk_c6)**.
% 0.21/0.47  31[0:Inp] || equal(inverse(u),sk_c6) equal(inverse(v),sk_c6) equal(inverse(w),sk_c7) equal(inverse(x),sk_c7) equal(multiply(u,sk_c5),sk_c6)**+ equal(multiply(v,sk_c6),sk_c7)** equal(multiply(w,sk_c7),sk_c5)** equal(multiply(x,sk_c7),sk_c6)** equal(multiply(sk_c6,sk_c7),sk_c5)** equal(multiply(sk_c7,sk_c5),sk_c6) equal(multiply(sk_c7,sk_c6),sk_c5) -> .
% 0.21/0.47  32[0:Inp] ||  -> equal(multiply(identity,u),u)**.
% 0.21/0.47  33[0:Inp] ||  -> equal(multiply(inverse(u),u),identity)**.
% 0.21/0.47  34[0:Inp] ||  -> equal(multiply(multiply(u,v),w),multiply(u,multiply(v,w)))**.
% 0.21/0.47  35[1:Spt:31.0,31.4] || equal(inverse(u),sk_c6) equal(multiply(u,sk_c5),sk_c6)** -> .
% 0.21/0.47  36[2:Spt:16.0] ||  -> equal(multiply(sk_c6,sk_c7),sk_c5)**.
% 0.21/0.47  38[3:Spt:19.0] ||  -> equal(inverse(sk_c4),sk_c6)**.
% 0.21/0.47  44[4:Spt:20.0] ||  -> equal(multiply(sk_c4,sk_c5),sk_c6)**.
% 0.21/0.47  46[4:SpL:44.0,35.1] || equal(inverse(sk_c4),sk_c6)** equal(sk_c6,sk_c6) -> .
% 0.21/0.47  47[4:Obv:46.1] || equal(inverse(sk_c4),sk_c6)** -> .
% 0.21/0.47  48[4:Rew:38.0,47.0] || equal(sk_c6,sk_c6)* -> .
% 0.21/0.47  49[4:Obv:48.0] ||  -> .
% 0.21/0.47  50[4:Spt:49.0,20.0,44.0] || equal(multiply(sk_c4,sk_c5),sk_c6)** -> .
% 0.21/0.47  51[4:Spt:49.0,20.1] ||  -> equal(multiply(sk_c7,sk_c5),sk_c6)**.
% 0.21/0.47  52[4:MRR:30.1,50.0] ||  -> equal(inverse(sk_c2),sk_c7)**.
% 0.21/0.47  53[4:MRR:15.1,50.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.21/0.47  54[4:MRR:25.0,50.0] ||  -> equal(multiply(sk_c2,sk_c7),sk_c5)**.
% 0.21/0.47  55[4:MRR:10.0,50.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.21/0.47  56[4:MRR:5.0,50.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c5)**.
% 0.21/0.47  66[3:SpR:38.0,33.0] ||  -> equal(multiply(sk_c6,sk_c4),identity)**.
% 0.21/0.47  70[1:SpL:33.0,35.1] || equal(inverse(inverse(sk_c5)),sk_c6)** equal(sk_c6,identity) -> .
% 0.21/0.47  78[0:SpR:33.0,34.0] ||  -> equal(multiply(inverse(u),multiply(u,v)),multiply(identity,v))**.
% 0.21/0.47  81[0:Rew:32.0,78.0] ||  -> equal(multiply(inverse(u),multiply(u,v)),v)**.
% 0.21/0.47  96[0:SpR:81.0,81.0] ||  -> equal(multiply(inverse(inverse(u)),v),multiply(u,v))**.
% 0.21/0.47  99[2:SpR:36.0,81.0] ||  -> equal(multiply(inverse(sk_c6),sk_c5),sk_c7)**.
% 0.21/0.47  100[4:SpR:54.0,81.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c7)**.
% 0.21/0.47  101[4:SpR:55.0,81.0] ||  -> equal(multiply(inverse(sk_c1),sk_c6),sk_c7)**.
% 0.21/0.47  103[0:SpR:33.0,81.0] ||  -> equal(multiply(inverse(inverse(u)),identity),u)**.
% 0.21/0.47  104[4:SpR:56.0,81.0] ||  -> equal(multiply(inverse(sk_c7),sk_c5),sk_c6)**.
% 0.21/0.47  114[4:Rew:51.0,100.0,52.0,100.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.21/0.47  116[4:Rew:114.0,36.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c5)**.
% 0.21/0.47  123[4:Rew:114.0,50.0] || equal(multiply(sk_c4,sk_c5),sk_c7)** -> .
% 0.21/0.47  124[4:Rew:114.0,66.0] ||  -> equal(multiply(sk_c7,sk_c4),identity)**.
% 0.21/0.47  137[4:Rew:53.0,101.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c7)**.
% 0.21/0.47  138[4:Rew:116.0,137.0,114.0,137.0] ||  -> equal(sk_c5,sk_c7)**.
% 0.21/0.47  143[4:Rew:138.0,104.0,114.0,104.0] ||  -> equal(multiply(inverse(sk_c7),sk_c7),sk_c7)**.
% 0.21/0.47  144[4:Rew:33.0,143.0] ||  -> equal(identity,sk_c7)**.
% 0.21/0.47  145[4:Rew:144.0,32.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.21/0.47  149[4:Rew:144.0,124.0] ||  -> equal(multiply(sk_c7,sk_c4),sk_c7)**.
% 0.21/0.47  162[4:Rew:145.0,149.0] ||  -> equal(sk_c4,sk_c7)**.
% 0.21/0.47  174[4:Rew:145.0,123.0,162.0,123.0,138.0,123.0] || equal(sk_c7,sk_c7)* -> .
% 0.21/0.47  175[4:Obv:174.0] ||  -> .
% 0.21/0.47  198[3:Spt:175.0,19.0,38.0] || equal(inverse(sk_c4),sk_c6)** -> .
% 0.21/0.47  199[3:Spt:175.0,19.1] ||  -> equal(multiply(sk_c7,sk_c5),sk_c6)**.
% 0.21/0.47  200[0:Rew:96.0,103.0] ||  -> equal(multiply(u,identity),u)**.
% 0.21/0.47  201[3:MRR:29.0,198.0] ||  -> equal(inverse(sk_c2),sk_c7)**.
% 0.21/0.47  202[3:MRR:14.0,198.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.21/0.47  203[3:MRR:24.0,198.0] ||  -> equal(multiply(sk_c2,sk_c7),sk_c5)**.
% 0.21/0.47  204[3:MRR:9.0,198.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.21/0.47  207[3:SpR:199.0,81.0] ||  -> equal(multiply(inverse(sk_c7),sk_c6),sk_c5)**.
% 0.21/0.47  217[3:SpR:203.0,81.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c7)**.
% 0.21/0.47  219[3:Rew:199.0,217.0,201.0,217.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.21/0.47  221[3:Rew:219.0,36.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c5)**.
% 0.21/0.47  223[3:Rew:219.0,99.0] ||  -> equal(multiply(inverse(sk_c7),sk_c5),sk_c7)**.
% 0.21/0.47  226[3:Rew:219.0,204.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c7)**.
% 0.21/0.47  228[3:Rew:219.0,70.0] || equal(inverse(inverse(sk_c5)),sk_c7)** equal(sk_c6,identity) -> .
% 0.21/0.47  231[3:Rew:219.0,207.0] ||  -> equal(multiply(inverse(sk_c7),sk_c7),sk_c5)**.
% 0.21/0.47  233[3:Rew:33.0,231.0] ||  -> equal(identity,sk_c5)**.
% 0.21/0.47  237[3:Rew:233.0,200.0] ||  -> equal(multiply(u,sk_c5),u)**.
% 0.21/0.47  238[3:Rew:237.0,223.0] ||  -> equal(inverse(sk_c7),sk_c7)**.
% 0.21/0.47  243[3:Rew:219.0,228.1,233.0,228.1] || equal(inverse(inverse(sk_c5)),sk_c7)** equal(sk_c5,sk_c7) -> .
% 0.21/0.47  256[3:SpR:226.0,81.0] ||  -> equal(multiply(inverse(sk_c1),sk_c7),sk_c7)**.
% 0.21/0.47  258[3:Rew:221.0,256.0,202.0,256.0] ||  -> equal(sk_c5,sk_c7)**.
% 0.21/0.47  266[3:Rew:258.0,243.0] || equal(inverse(inverse(sk_c7)),sk_c7)** equal(sk_c5,sk_c7) -> .
% 0.21/0.47  280[3:Rew:238.0,266.0,238.0,266.0] || equal(sk_c7,sk_c7) equal(sk_c5,sk_c7)** -> .
% 0.21/0.47  281[3:Obv:280.0] || equal(sk_c5,sk_c7)** -> .
% 0.21/0.47  282[3:Rew:258.0,281.0] || equal(sk_c7,sk_c7)* -> .
% 0.21/0.47  283[3:Obv:282.0] ||  -> .
% 0.21/0.47  284[2:Spt:283.0,16.0,36.0] || equal(multiply(sk_c6,sk_c7),sk_c5)** -> .
% 0.21/0.47  285[2:Spt:283.0,16.1] ||  -> equal(multiply(sk_c7,sk_c5),sk_c6)**.
% 0.21/0.47  286[2:MRR:26.1,284.0] ||  -> equal(inverse(sk_c2),sk_c7)**.
% 0.21/0.47  288[2:MRR:21.0,284.0] ||  -> equal(multiply(sk_c2,sk_c7),sk_c5)**.
% 0.21/0.47  290[2:MRR:1.0,284.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c5)**.
% 0.21/0.47  299[2:SpR:288.0,81.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c7)**.
% 0.21/0.47  301[2:Rew:285.0,299.0,286.0,299.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.21/0.47  303[2:Rew:301.0,284.0] || equal(multiply(sk_c7,sk_c7),sk_c5)** -> .
% 0.21/0.47  307[2:Rew:301.0,290.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c5)**.
% 0.21/0.47  312[2:Rew:307.0,303.0] || equal(sk_c5,sk_c5)* -> .
% 0.21/0.47  313[2:Obv:312.0] ||  -> .
% 0.21/0.47  325[1:Spt:313.0,31.1,31.2,31.3,31.5,31.6,31.7,31.8,31.9,31.10] || equal(inverse(u),sk_c6) equal(inverse(v),sk_c7) equal(inverse(w),sk_c7) equal(multiply(u,sk_c6),sk_c7)**+ equal(multiply(v,sk_c7),sk_c5)** equal(multiply(w,sk_c7),sk_c6)** equal(multiply(sk_c6,sk_c7),sk_c5)** equal(multiply(sk_c7,sk_c5),sk_c6) equal(multiply(sk_c7,sk_c6),sk_c5) -> .
% 0.21/0.47  327[2:Spt:1.0] ||  -> equal(multiply(sk_c6,sk_c7),sk_c5)**.
% 0.21/0.47  328[2:Rew:327.0,325.6] || equal(inverse(u),sk_c6) equal(inverse(v),sk_c7) equal(inverse(w),sk_c7) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c5)** equal(multiply(w,sk_c7),sk_c6)** equal(sk_c5,sk_c5) equal(multiply(sk_c7,sk_c5),sk_c6) equal(multiply(sk_c7,sk_c6),sk_c5)** -> .
% 0.21/0.47  330[2:Obv:328.6] || equal(inverse(u),sk_c6) equal(inverse(v),sk_c7) equal(inverse(w),sk_c7) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c5)** equal(multiply(w,sk_c7),sk_c6)** equal(multiply(sk_c7,sk_c5),sk_c6) equal(multiply(sk_c7,sk_c6),sk_c5)** -> .
% 0.21/0.47  333[2:SpR:327.0,81.0] ||  -> equal(multiply(inverse(sk_c6),sk_c5),sk_c7)**.
% 0.21/0.47  335[3:Spt:18.0] ||  -> equal(inverse(sk_c3),sk_c6)**.
% 0.21/0.47  336[3:SpR:335.0,81.0] ||  -> equal(multiply(sk_c6,multiply(sk_c3,u)),u)**.
% 0.21/0.47  338[4:Spt:19.0] ||  -> equal(inverse(sk_c4),sk_c6)**.
% 0.21/0.47  341[5:Spt:17.0] ||  -> equal(multiply(sk_c3,sk_c6),sk_c7)**.
% 0.21/0.47  343[5:SpR:341.0,81.0] ||  -> equal(multiply(inverse(sk_c3),sk_c7),sk_c6)**.
% 0.21/0.47  345[5:Rew:327.0,343.0,335.0,343.0] ||  -> equal(sk_c6,sk_c5)**.
% 0.21/0.47  347[5:Rew:345.0,335.0] ||  -> equal(inverse(sk_c3),sk_c5)**.
% 0.21/0.47  348[5:Rew:345.0,338.0] ||  -> equal(inverse(sk_c4),sk_c5)**.
% 0.21/0.47  349[5:Rew:345.0,341.0] ||  -> equal(multiply(sk_c3,sk_c5),sk_c7)**.
% 0.21/0.47  351[5:Rew:345.0,330.6] || equal(inverse(u),sk_c6) equal(inverse(v),sk_c7) equal(inverse(w),sk_c7) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c5)** equal(multiply(w,sk_c7),sk_c6)** equal(multiply(sk_c7,sk_c5),sk_c5) equal(multiply(sk_c7,sk_c6),sk_c5)** -> .
% 0.21/0.47  354[5:Rew:345.0,10.0] ||  -> equal(multiply(sk_c4,sk_c5),sk_c5) equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.21/0.47  356[5:Rew:345.0,15.1] ||  -> equal(inverse(sk_c1),sk_c7) equal(multiply(sk_c4,sk_c5),sk_c5)**.
% 0.21/0.47  358[5:Rew:345.0,333.0] ||  -> equal(multiply(inverse(sk_c5),sk_c5),sk_c7)**.
% 0.21/0.47  362[5:Rew:33.0,358.0] ||  -> equal(identity,sk_c7)**.
% 0.21/0.47  363[5:Rew:362.0,32.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.21/0.47  364[5:Rew:362.0,200.0] ||  -> equal(multiply(u,sk_c7),u)**.
% 0.21/0.47  365[5:Rew:362.0,33.0] ||  -> equal(multiply(inverse(u),u),sk_c7)**.
% 0.21/0.47  370[5:Rew:364.0,354.1,345.0,354.1] ||  -> equal(multiply(sk_c4,sk_c5),sk_c5)** equal(sk_c1,sk_c5).
% 0.21/0.47  371[5:Rew:370.1,356.0] ||  -> equal(inverse(sk_c5),sk_c7) equal(multiply(sk_c4,sk_c5),sk_c5)**.
% 0.21/0.47  374[5:Rew:345.0,351.7,363.0,351.7,363.0,351.6,364.0,351.5,345.0,351.5,364.0,351.4,345.0,351.3,345.0,351.0] || equal(inverse(u),sk_c5) equal(inverse(v),sk_c7)** equal(inverse(w),sk_c7)** equal(multiply(u,sk_c5),sk_c7)** equal(v,sk_c5) equal(w,sk_c5) equal(sk_c5,sk_c5) equal(sk_c5,sk_c5) -> .
% 0.21/0.47  375[5:Obv:374.7] || equal(inverse(u),sk_c5) equal(inverse(v),sk_c7)** equal(inverse(w),sk_c7)** equal(multiply(u,sk_c5),sk_c7)** equal(v,sk_c5) equal(w,sk_c5) -> .
% 0.21/0.47  376[5:Con:375.2] || equal(inverse(u),sk_c5) equal(inverse(v),sk_c7)** equal(multiply(u,sk_c5),sk_c7)** equal(v,sk_c5) -> .
% 0.21/0.47  392[5:SpR:347.0,365.0] ||  -> equal(multiply(sk_c5,sk_c3),sk_c7)**.
% 0.21/0.47  393[5:SpR:348.0,365.0] ||  -> equal(multiply(sk_c5,sk_c4),sk_c7)**.
% 0.21/0.47  403[5:SpR:392.0,81.0] ||  -> equal(multiply(inverse(sk_c5),sk_c7),sk_c3)**.
% 0.21/0.47  405[5:Rew:364.0,403.0] ||  -> equal(inverse(sk_c5),sk_c3)**.
% 0.21/0.47  406[5:Rew:405.0,371.0] ||  -> equal(sk_c3,sk_c7) equal(multiply(sk_c4,sk_c5),sk_c5)**.
% 0.21/0.47  412[5:SpR:393.0,81.0] ||  -> equal(multiply(inverse(sk_c5),sk_c7),sk_c4)**.
% 0.21/0.47  414[5:Rew:405.0,412.0] ||  -> equal(multiply(sk_c3,sk_c7),sk_c4)**.
% 0.21/0.47  415[5:Rew:364.0,414.0] ||  -> equal(sk_c4,sk_c3)**.
% 0.21/0.47  419[5:Rew:415.0,406.1] ||  -> equal(sk_c3,sk_c7) equal(multiply(sk_c3,sk_c5),sk_c5)**.
% 0.21/0.47  422[5:Rew:349.0,419.1] ||  -> equal(sk_c3,sk_c7)** equal(sk_c5,sk_c7).
% 0.21/0.47  427[6:Spt:422.1] ||  -> equal(sk_c5,sk_c7)**.
% 0.21/0.47  429[6:Rew:427.0,347.0] ||  -> equal(inverse(sk_c3),sk_c7)**.
% 0.21/0.47  430[6:Rew:427.0,349.0] ||  -> equal(multiply(sk_c3,sk_c7),sk_c7)**.
% 0.21/0.47  435[6:Rew:427.0,376.0] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c7)** equal(multiply(u,sk_c5),sk_c7)** equal(v,sk_c5) -> .
% 0.21/0.47  438[6:Rew:364.0,430.0] ||  -> equal(sk_c3,sk_c7)**.
% 0.21/0.47  440[6:Rew:438.0,429.0] ||  -> equal(inverse(sk_c7),sk_c7)**.
% 0.21/0.47  448[6:Rew:427.0,435.3,364.0,435.2,427.0,435.2] || equal(inverse(u),sk_c7)** equal(inverse(v),sk_c7)** equal(u,sk_c7) equal(v,sk_c7) -> .
% 0.21/0.47  449[6:Con:448.1] || equal(inverse(u),sk_c7)** equal(u,sk_c7) -> .
% 0.21/0.47  460[6:SpL:440.0,449.0] || equal(sk_c7,sk_c7)* equal(sk_c7,sk_c7)* -> .
% 0.21/0.47  461[6:Obv:460.1] ||  -> .
% 0.21/0.47  462[6:Spt:461.0,422.1,427.0] || equal(sk_c5,sk_c7)** -> .
% 0.21/0.47  463[6:Spt:461.0,422.0] ||  -> equal(sk_c3,sk_c7)**.
% 0.21/0.47  469[6:Rew:463.0,349.0] ||  -> equal(multiply(sk_c7,sk_c5),sk_c7)**.
% 0.21/0.47  470[6:Rew:363.0,469.0] ||  -> equal(sk_c5,sk_c7)**.
% 0.21/0.47  471[6:MRR:470.0,462.0] ||  -> .
% 0.21/0.47  477[5:Spt:471.0,17.0,341.0] || equal(multiply(sk_c3,sk_c6),sk_c7)** -> .
% 0.21/0.47  478[5:Spt:471.0,17.1] ||  -> equal(multiply(sk_c7,sk_c5),sk_c6)**.
% 0.21/0.47  479[5:MRR:27.1,477.0] ||  -> equal(inverse(sk_c2),sk_c7)**.
% 0.21/0.47  480[5:MRR:12.1,477.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.21/0.47  481[5:MRR:22.0,477.0] ||  -> equal(multiply(sk_c2,sk_c7),sk_c5)**.
% 0.21/0.47  482[5:MRR:7.0,477.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.21/0.47  489[5:SpR:478.0,81.0] ||  -> equal(multiply(inverse(sk_c7),sk_c6),sk_c5)**.
% 0.21/0.47  500[5:SpR:481.0,81.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c7)**.
% 0.21/0.47  502[5:Rew:478.0,500.0,479.0,500.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.21/0.47  506[5:Rew:502.0,327.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c5)**.
% 0.21/0.47  508[5:Rew:502.0,477.0] || equal(multiply(sk_c3,sk_c7),sk_c7)** -> .
% 0.21/0.47  510[5:Rew:502.0,336.0] ||  -> equal(multiply(sk_c7,multiply(sk_c3,u)),u)**.
% 0.21/0.47  512[5:Rew:502.0,482.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c7)**.
% 0.21/0.47  516[5:Rew:502.0,489.0] ||  -> equal(multiply(inverse(sk_c7),sk_c7),sk_c5)**.
% 0.21/0.47  518[5:Rew:33.0,516.0] ||  -> equal(identity,sk_c5)**.
% 0.21/0.47  519[5:Rew:518.0,200.0] ||  -> equal(multiply(u,sk_c5),u)**.
% 0.21/0.47  520[5:Rew:518.0,32.0] ||  -> equal(multiply(sk_c5,u),u)**.
% 0.21/0.47  537[5:SpR:512.0,81.0] ||  -> equal(multiply(inverse(sk_c1),sk_c7),sk_c7)**.
% 0.21/0.47  539[5:Rew:480.0,537.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c7)**.
% 0.21/0.47  540[5:Rew:506.0,539.0] ||  -> equal(sk_c5,sk_c7)**.
% 0.21/0.47  544[5:Rew:540.0,519.0] ||  -> equal(multiply(u,sk_c7),u)**.
% 0.21/0.47  545[5:Rew:540.0,520.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.21/0.47  551[5:Rew:544.0,508.0] || equal(sk_c3,sk_c7)** -> .
% 0.21/0.47  558[5:Rew:545.0,510.0] ||  -> equal(multiply(sk_c3,u),u)**.
% 0.21/0.47  587[5:SpR:558.0,544.0] ||  -> equal(sk_c3,sk_c7)**.
% 0.21/0.47  589[5:MRR:587.0,551.0] ||  -> .
% 0.21/0.47  591[4:Spt:589.0,19.0,338.0] || equal(inverse(sk_c4),sk_c6)** -> .
% 0.21/0.47  592[4:Spt:589.0,19.1] ||  -> equal(multiply(sk_c7,sk_c5),sk_c6)**.
% 0.21/0.47  593[4:MRR:29.0,591.0] ||  -> equal(inverse(sk_c2),sk_c7)**.
% 0.21/0.47  594[4:MRR:14.0,591.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.21/0.47  595[4:MRR:24.0,591.0] ||  -> equal(multiply(sk_c2,sk_c7),sk_c5)**.
% 0.21/0.47  596[4:MRR:9.0,591.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.21/0.47  597[4:MRR:4.0,591.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c5)**.
% 0.21/0.47  598[4:Rew:597.0,330.7,592.0,330.6] || equal(inverse(u),sk_c6) equal(inverse(v),sk_c7) equal(inverse(w),sk_c7) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c5)** equal(multiply(w,sk_c7),sk_c6)** equal(sk_c6,sk_c6) equal(sk_c5,sk_c5) -> .
% 0.21/0.47  599[4:Obv:598.7] || equal(inverse(u),sk_c6) equal(inverse(v),sk_c7) equal(inverse(w),sk_c7) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c5)** equal(multiply(w,sk_c7),sk_c6)** -> .
% 0.21/0.47  603[4:SpR:592.0,81.0] ||  -> equal(multiply(inverse(sk_c7),sk_c6),sk_c5)**.
% 0.21/0.47  615[4:SpR:595.0,81.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c7)**.
% 0.21/0.47  617[4:Rew:592.0,615.0,593.0,615.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.21/0.47  620[4:Rew:617.0,327.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c5)**.
% 0.21/0.47  622[4:Rew:617.0,333.0] ||  -> equal(multiply(inverse(sk_c7),sk_c5),sk_c7)**.
% 0.21/0.47  625[4:Rew:617.0,596.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c7)**.
% 0.21/0.47  627[4:Rew:617.0,599.0] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c7) equal(inverse(w),sk_c7) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c5)** equal(multiply(w,sk_c7),sk_c6)** -> .
% 0.21/0.47  629[4:Rew:617.0,603.0] ||  -> equal(multiply(inverse(sk_c7),sk_c7),sk_c5)**.
% 0.21/0.48  631[4:Rew:33.0,629.0] ||  -> equal(identity,sk_c5)**.
% 0.21/0.48  633[4:Rew:631.0,200.0] ||  -> equal(multiply(u,sk_c5),u)**.
% 0.21/0.48  636[4:Rew:633.0,622.0] ||  -> equal(inverse(sk_c7),sk_c7)**.
% 0.21/0.48  640[4:Rew:617.0,627.5,617.0,627.3] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c7) equal(inverse(w),sk_c7) equal(multiply(u,sk_c7),sk_c7)** equal(multiply(v,sk_c7),sk_c5)** equal(multiply(w,sk_c7),sk_c7)** -> .
% 0.21/0.48  641[4:Con:640.2] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c7) equal(multiply(u,sk_c7),sk_c7)** equal(multiply(v,sk_c7),sk_c5)** -> .
% 0.21/0.48  655[4:SpR:625.0,81.0] ||  -> equal(multiply(inverse(sk_c1),sk_c7),sk_c7)**.
% 0.21/0.48  657[4:Rew:620.0,655.0,594.0,655.0] ||  -> equal(sk_c5,sk_c7)**.
% 0.21/0.48  662[4:Rew:657.0,633.0] ||  -> equal(multiply(u,sk_c7),u)**.
% 0.21/0.48  665[4:Rew:657.0,641.3] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c7) equal(multiply(u,sk_c7),sk_c7)** equal(multiply(v,sk_c7),sk_c7)** -> .
% 0.21/0.48  680[4:Con:665.1] || equal(inverse(u),sk_c7) equal(multiply(u,sk_c7),sk_c7)** -> .
% 0.21/0.48  681[4:Rew:662.0,680.1] || equal(inverse(u),sk_c7)** equal(u,sk_c7) -> .
% 0.21/0.48  745[4:SpL:636.0,681.0] || equal(sk_c7,sk_c7)* equal(sk_c7,sk_c7)* -> .
% 0.21/0.48  747[4:Obv:745.1] ||  -> .
% 0.21/0.48  748[3:Spt:747.0,18.0,335.0] || equal(inverse(sk_c3),sk_c6)** -> .
% 0.21/0.48  749[3:Spt:747.0,18.1] ||  -> equal(multiply(sk_c7,sk_c5),sk_c6)**.
% 0.21/0.48  750[3:MRR:28.0,748.0] ||  -> equal(inverse(sk_c2),sk_c7)**.
% 0.21/0.48  751[3:MRR:13.0,748.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.21/0.48  752[3:MRR:23.0,748.0] ||  -> equal(multiply(sk_c2,sk_c7),sk_c5)**.
% 0.21/0.48  753[3:MRR:8.0,748.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.21/0.48  754[3:MRR:3.0,748.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c5)**.
% 0.21/0.48  755[3:Rew:754.0,330.7,749.0,330.6] || equal(inverse(u),sk_c6) equal(inverse(v),sk_c7) equal(inverse(w),sk_c7) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c5)** equal(multiply(w,sk_c7),sk_c6)** equal(sk_c6,sk_c6) equal(sk_c5,sk_c5) -> .
% 0.21/0.48  756[3:Obv:755.7] || equal(inverse(u),sk_c6) equal(inverse(v),sk_c7) equal(inverse(w),sk_c7) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c5)** equal(multiply(w,sk_c7),sk_c6)** -> .
% 0.21/0.48  760[3:SpR:749.0,81.0] ||  -> equal(multiply(inverse(sk_c7),sk_c6),sk_c5)**.
% 0.21/0.48  770[3:SpR:752.0,81.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c7)**.
% 0.21/0.48  772[3:Rew:749.0,770.0,750.0,770.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.21/0.48  774[3:Rew:772.0,327.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c5)**.
% 0.21/0.48  776[3:Rew:772.0,333.0] ||  -> equal(multiply(inverse(sk_c7),sk_c5),sk_c7)**.
% 0.21/0.48  778[3:Rew:772.0,753.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c7)**.
% 0.21/0.48  780[3:Rew:772.0,756.0] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c7) equal(inverse(w),sk_c7) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c5)** equal(multiply(w,sk_c7),sk_c6)** -> .
% 0.21/0.48  782[3:Rew:772.0,760.0] ||  -> equal(multiply(inverse(sk_c7),sk_c7),sk_c5)**.
% 0.21/0.48  784[3:Rew:33.0,782.0] ||  -> equal(identity,sk_c5)**.
% 0.21/0.48  785[3:Rew:784.0,200.0] ||  -> equal(multiply(u,sk_c5),u)**.
% 0.21/0.48  789[3:Rew:785.0,776.0] ||  -> equal(inverse(sk_c7),sk_c7)**.
% 0.21/0.48  793[3:Rew:772.0,780.5,772.0,780.3] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c7) equal(inverse(w),sk_c7) equal(multiply(u,sk_c7),sk_c7)** equal(multiply(v,sk_c7),sk_c5)** equal(multiply(w,sk_c7),sk_c7)** -> .
% 0.21/0.48  794[3:Con:793.2] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c7) equal(multiply(u,sk_c7),sk_c7)** equal(multiply(v,sk_c7),sk_c5)** -> .
% 0.21/0.48  806[3:SpR:778.0,81.0] ||  -> equal(multiply(inverse(sk_c1),sk_c7),sk_c7)**.
% 0.21/0.48  808[3:Rew:774.0,806.0,751.0,806.0] ||  -> equal(sk_c5,sk_c7)**.
% 0.21/0.48  812[3:Rew:808.0,785.0] ||  -> equal(multiply(u,sk_c7),u)**.
% 0.21/0.48  816[3:Rew:808.0,794.3] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c7) equal(multiply(u,sk_c7),sk_c7)** equal(multiply(v,sk_c7),sk_c7)** -> .
% 0.21/0.48  830[3:Con:816.1] || equal(inverse(u),sk_c7) equal(multiply(u,sk_c7),sk_c7)** -> .
% 0.21/0.48  831[3:Rew:812.0,830.1] || equal(inverse(u),sk_c7)** equal(u,sk_c7) -> .
% 0.21/0.48  860[3:SpL:789.0,831.0] || equal(sk_c7,sk_c7)* equal(sk_c7,sk_c7)* -> .
% 0.21/0.48  862[3:Obv:860.1] ||  -> .
% 0.21/0.48  863[2:Spt:862.0,1.0,327.0] || equal(multiply(sk_c6,sk_c7),sk_c5)** -> .
% 0.21/0.48  864[2:Spt:862.0,1.1] ||  -> equal(multiply(sk_c7,sk_c6),sk_c5)**.
% 0.21/0.48  865[2:MRR:26.1,863.0] ||  -> equal(inverse(sk_c2),sk_c7)**.
% 0.21/0.48  867[2:MRR:21.0,863.0] ||  -> equal(multiply(sk_c2,sk_c7),sk_c5)**.
% 0.21/0.48  869[2:MRR:16.0,863.0] ||  -> equal(multiply(sk_c7,sk_c5),sk_c6)**.
% 0.21/0.48  878[2:SpR:867.0,81.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c7)**.
% 0.21/0.48  880[2:Rew:865.0,878.0] ||  -> equal(multiply(sk_c7,sk_c5),sk_c7)**.
% 0.21/0.48  881[2:Rew:869.0,880.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.21/0.48  882[2:Rew:881.0,864.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c5)**.
% 0.21/0.48  883[2:Rew:881.0,863.0] || equal(multiply(sk_c7,sk_c7),sk_c5)** -> .
% 0.21/0.48  888[2:Rew:882.0,883.0] || equal(sk_c5,sk_c5)* -> .
% 0.21/0.48  889[2:Obv:888.0] ||  -> .
% 0.21/0.48  % SZS output end Refutation
% 0.21/0.48  Formulae used in the proof : prove_this_1 prove_this_3 prove_this_4 prove_this_5 prove_this_7 prove_this_8 prove_this_9 prove_this_10 prove_this_12 prove_this_13 prove_this_14 prove_this_15 prove_this_16 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 prove_this_30 prove_this_31 left_identity left_inverse associativity
% 0.21/0.48  
%------------------------------------------------------------------------------