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SPASS---3.9.UNS-Ref.s

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%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : GRP327-1 : TPTP v8.1.0. Released v2.5.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n026.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 11:46:52 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
% 0.11/0.12  % Problem  : GRP327-1 : TPTP v8.1.0. Released v2.5.0.
% 0.11/0.13  % Command  : run_spass %d %s
% 0.12/0.34  % Computer : n026.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 600
% 0.12/0.34  % DateTime : Mon Jun 13 18:44:21 EDT 2022
% 0.12/0.34  % 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/sandbox2/benchmark/theBenchmark.p 
% 0.19/0.47  SPASS derived 693 clauses, backtracked 308 clauses, performed 12 splits and kept 566 clauses.
% 0.19/0.47  SPASS allocated 63594 KBytes.
% 0.19/0.47  SPASS spent	0:00:00.12 on the problem.
% 0.19/0.47  		0:00:00.03 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  		0:00:00.06 for the reduction.
% 0.19/0.47  
% 0.19/0.47  
% 0.19/0.47  Here is a proof with depth 5, length 290 :
% 0.19/0.47  % SZS output start Refutation
% 0.19/0.47  1[0:Inp] ||  -> equal(multiply(sk_c7,sk_c8),sk_c6)**.
% 0.19/0.47  2[0:Inp] ||  -> equal(inverse(sk_c7),sk_c6) equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.47  3[0:Inp] ||  -> equal(multiply(sk_c6,sk_c8),sk_c7) equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.47  4[0:Inp] ||  -> equal(inverse(sk_c4),sk_c8) equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.47  5[0:Inp] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8)** equal(multiply(sk_c1,sk_c7),sk_c8).
% 0.19/0.47  6[0:Inp] ||  -> equal(inverse(sk_c5),sk_c7) equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.47  7[0:Inp] ||  -> equal(multiply(sk_c5,sk_c6),sk_c7)** equal(multiply(sk_c1,sk_c7),sk_c8).
% 0.19/0.47  8[0:Inp] ||  -> equal(inverse(sk_c7),sk_c6) equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.47  9[0:Inp] ||  -> equal(inverse(sk_c1),sk_c7) equal(multiply(sk_c6,sk_c8),sk_c7)**.
% 0.19/0.47  10[0:Inp] ||  -> equal(inverse(sk_c4),sk_c8)** equal(inverse(sk_c1),sk_c7).
% 0.19/0.47  11[0:Inp] ||  -> equal(inverse(sk_c1),sk_c7) equal(multiply(sk_c4,sk_c7),sk_c8)**.
% 0.19/0.47  12[0:Inp] ||  -> equal(inverse(sk_c5),sk_c7)** equal(inverse(sk_c1),sk_c7).
% 0.19/0.47  13[0:Inp] ||  -> equal(inverse(sk_c1),sk_c7) equal(multiply(sk_c5,sk_c6),sk_c7)**.
% 0.19/0.47  14[0:Inp] ||  -> equal(inverse(sk_c7),sk_c6) equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.47  16[0:Inp] ||  -> equal(inverse(sk_c4),sk_c8) equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.47  18[0:Inp] ||  -> equal(inverse(sk_c5),sk_c7) equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.47  19[0:Inp] ||  -> equal(multiply(sk_c5,sk_c6),sk_c7)** equal(multiply(sk_c8,sk_c3),sk_c7).
% 0.19/0.47  20[0:Inp] ||  -> equal(inverse(sk_c7),sk_c6) equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.47  22[0:Inp] ||  -> equal(inverse(sk_c4),sk_c8) equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.47  24[0:Inp] ||  -> equal(inverse(sk_c5),sk_c7) equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.47  25[0:Inp] ||  -> equal(multiply(sk_c5,sk_c6),sk_c7) equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.47  26[0:Inp] ||  -> equal(inverse(sk_c7),sk_c6) equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.47  28[0:Inp] ||  -> equal(inverse(sk_c4),sk_c8) equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.47  30[0:Inp] ||  -> equal(inverse(sk_c5),sk_c7) equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.47  31[0:Inp] ||  -> equal(inverse(sk_c2),sk_c8) equal(multiply(sk_c5,sk_c6),sk_c7)**.
% 0.19/0.47  32[0:Inp] || equal(multiply(sk_c7,sk_c8),sk_c6) equal(multiply(u,sk_c7),sk_c8)** equal(inverse(u),sk_c7) equal(multiply(sk_c8,v),sk_c7)** equal(multiply(w,sk_c8),v)* equal(inverse(w),sk_c8) equal(inverse(sk_c7),sk_c6) equal(multiply(sk_c6,sk_c8),sk_c7)** equal(inverse(x),sk_c8) equal(multiply(x,sk_c7),sk_c8)** equal(inverse(y),sk_c7) equal(multiply(y,sk_c6),sk_c7)** -> .
% 0.19/0.47  33[0:Inp] ||  -> equal(multiply(identity,u),u)**.
% 0.19/0.47  34[0:Inp] ||  -> equal(multiply(inverse(u),u),identity)**.
% 0.19/0.47  35[0:Inp] ||  -> equal(multiply(multiply(u,v),w),multiply(u,multiply(v,w)))**.
% 0.19/0.47  36[0:Rew:1.0,32.0] || equal(sk_c6,sk_c6) equal(multiply(u,sk_c7),sk_c8)** equal(inverse(u),sk_c7) equal(multiply(sk_c8,v),sk_c7)** equal(multiply(w,sk_c8),v)* equal(inverse(w),sk_c8) equal(inverse(sk_c7),sk_c6) equal(multiply(sk_c6,sk_c8),sk_c7)** equal(inverse(x),sk_c8) equal(multiply(x,sk_c7),sk_c8)** equal(inverse(y),sk_c7) equal(multiply(y,sk_c6),sk_c7)** -> .
% 0.19/0.47  37[0:Obv:36.0] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(inverse(w),sk_c8) equal(inverse(x),sk_c7) equal(inverse(sk_c7),sk_c6) equal(multiply(w,sk_c8),y)*+ equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c8)** equal(multiply(x,sk_c7),sk_c8)** equal(multiply(sk_c8,y),sk_c7)** equal(multiply(sk_c6,sk_c8),sk_c7)** -> .
% 0.19/0.47  38[1:Spt:37.3,37.8] || equal(inverse(u),sk_c7) equal(multiply(u,sk_c7),sk_c8)** -> .
% 0.19/0.47  41[2:Spt:8.1] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.47  48[3:Spt:2.1] ||  -> equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.47  50[3:SpL:48.0,38.1] || equal(inverse(sk_c1),sk_c7)** equal(sk_c8,sk_c8) -> .
% 0.19/0.47  51[3:Obv:50.1] || equal(inverse(sk_c1),sk_c7)** -> .
% 0.19/0.47  52[3:Rew:41.0,51.0] || equal(sk_c7,sk_c7)* -> .
% 0.19/0.47  53[3:Obv:52.0] ||  -> .
% 0.19/0.47  54[3:Spt:53.0,2.1,48.0] || equal(multiply(sk_c1,sk_c7),sk_c8)** -> .
% 0.19/0.47  55[3:Spt:53.0,2.0] ||  -> equal(inverse(sk_c7),sk_c6)**.
% 0.19/0.47  56[3:MRR:6.1,54.0] ||  -> equal(inverse(sk_c5),sk_c7)**.
% 0.19/0.47  57[3:MRR:4.1,54.0] ||  -> equal(inverse(sk_c4),sk_c8)**.
% 0.19/0.47  58[3:MRR:7.1,54.0] ||  -> equal(multiply(sk_c5,sk_c6),sk_c7)**.
% 0.19/0.47  59[3:MRR:5.1,54.0] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8)**.
% 0.19/0.47  60[3:MRR:3.1,54.0] ||  -> equal(multiply(sk_c6,sk_c8),sk_c7)**.
% 0.19/0.47  66[3:SpL:59.0,38.1] || equal(inverse(sk_c4),sk_c7)** equal(sk_c8,sk_c8) -> .
% 0.19/0.47  67[3:Obv:66.1] || equal(inverse(sk_c4),sk_c7)** -> .
% 0.19/0.47  68[3:Rew:57.0,67.0] || equal(sk_c8,sk_c7)** -> .
% 0.19/0.47  74[2:SpR:41.0,34.0] ||  -> equal(multiply(sk_c7,sk_c1),identity)**.
% 0.19/0.47  75[3:SpR:55.0,34.0] ||  -> equal(multiply(sk_c6,sk_c7),identity)**.
% 0.19/0.47  76[3:SpR:56.0,34.0] ||  -> equal(multiply(sk_c7,sk_c5),identity)**.
% 0.19/0.47  77[3:SpR:57.0,34.0] ||  -> equal(multiply(sk_c8,sk_c4),identity)**.
% 0.19/0.47  78[1:SpL:34.0,38.1] || equal(inverse(inverse(sk_c7)),sk_c7)** equal(identity,sk_c8) -> .
% 0.19/0.47  88[3:SpR:75.0,35.0] ||  -> equal(multiply(sk_c6,multiply(sk_c7,u)),multiply(identity,u))**.
% 0.19/0.47  91[3:SpR:60.0,35.0] ||  -> equal(multiply(sk_c6,multiply(sk_c8,u)),multiply(sk_c7,u))**.
% 0.19/0.47  94[3:SpR:58.0,35.0] ||  -> equal(multiply(sk_c5,multiply(sk_c6,u)),multiply(sk_c7,u))**.
% 0.19/0.47  96[0:SpR:34.0,35.0] ||  -> equal(multiply(inverse(u),multiply(u,v)),multiply(identity,v))**.
% 0.19/0.47  100[3:Rew:33.0,88.0] ||  -> equal(multiply(sk_c6,multiply(sk_c7,u)),u)**.
% 0.19/0.47  104[0:Rew:33.0,96.0] ||  -> equal(multiply(inverse(u),multiply(u,v)),v)**.
% 0.19/0.47  111[3:SpR:1.0,100.0] ||  -> equal(multiply(sk_c6,sk_c6),sk_c8)**.
% 0.19/0.47  112[3:SpR:74.0,100.0] ||  -> equal(multiply(sk_c6,identity),sk_c1)**.
% 0.19/0.47  113[3:SpR:76.0,100.0] ||  -> equal(multiply(sk_c6,identity),sk_c5)**.
% 0.19/0.47  114[3:Rew:112.0,113.0] ||  -> equal(sk_c5,sk_c1)**.
% 0.19/0.47  118[3:Rew:114.0,94.0] ||  -> equal(multiply(sk_c1,multiply(sk_c6,u)),multiply(sk_c7,u))**.
% 0.19/0.47  122[3:SpR:111.0,35.0] ||  -> equal(multiply(sk_c6,multiply(sk_c6,u)),multiply(sk_c8,u))**.
% 0.19/0.47  126[3:SpR:112.0,35.0] ||  -> equal(multiply(sk_c6,multiply(identity,u)),multiply(sk_c1,u))**.
% 0.19/0.47  128[3:Rew:33.0,126.0] ||  -> equal(multiply(sk_c1,u),multiply(sk_c6,u))**.
% 0.19/0.47  131[3:Rew:128.0,118.0] ||  -> equal(multiply(sk_c6,multiply(sk_c6,u)),multiply(sk_c7,u))**.
% 0.19/0.47  136[3:Rew:122.0,131.0] ||  -> equal(multiply(sk_c8,u),multiply(sk_c7,u))**.
% 0.19/0.47  137[3:Rew:136.0,77.0] ||  -> equal(multiply(sk_c7,sk_c4),identity)**.
% 0.19/0.47  146[3:Rew:136.0,91.0] ||  -> equal(multiply(sk_c6,multiply(sk_c7,u)),multiply(sk_c7,u))**.
% 0.19/0.47  148[3:Rew:100.0,146.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.47  149[3:Rew:148.0,100.0] ||  -> equal(multiply(sk_c6,u),u)**.
% 0.19/0.47  150[3:Rew:148.0,74.0] ||  -> equal(identity,sk_c1)**.
% 0.19/0.47  151[3:Rew:148.0,1.0] ||  -> equal(sk_c6,sk_c8)**.
% 0.19/0.47  158[3:Rew:148.0,137.0] ||  -> equal(identity,sk_c4)**.
% 0.19/0.47  165[3:Rew:150.0,75.0] ||  -> equal(multiply(sk_c6,sk_c7),sk_c1)**.
% 0.19/0.47  175[3:Rew:150.0,158.0] ||  -> equal(sk_c4,sk_c1)**.
% 0.19/0.47  177[3:Rew:175.0,59.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.47  182[3:Rew:151.0,149.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.19/0.47  187[3:Rew:182.0,165.0,151.0,165.0] ||  -> equal(sk_c1,sk_c7)**.
% 0.19/0.47  202[3:Rew:148.0,177.0,187.0,177.0] ||  -> equal(sk_c8,sk_c7)**.
% 0.19/0.47  203[3:MRR:202.0,68.0] ||  -> .
% 0.19/0.47  210[2:Spt:203.0,8.1,41.0] || equal(inverse(sk_c1),sk_c7)** -> .
% 0.19/0.47  211[2:Spt:203.0,8.0] ||  -> equal(inverse(sk_c7),sk_c6)**.
% 0.19/0.47  212[2:MRR:12.1,210.0] ||  -> equal(inverse(sk_c5),sk_c7)**.
% 0.19/0.47  214[2:MRR:13.0,210.0] ||  -> equal(multiply(sk_c5,sk_c6),sk_c7)**.
% 0.19/0.47  216[2:MRR:9.0,210.0] ||  -> equal(multiply(sk_c6,sk_c8),sk_c7)**.
% 0.19/0.47  217[2:Rew:211.0,78.0] || equal(inverse(sk_c6),sk_c7)** equal(identity,sk_c8) -> .
% 0.19/0.47  241[2:SpR:211.0,34.0] ||  -> equal(multiply(sk_c6,sk_c7),identity)**.
% 0.19/0.47  243[2:SpR:212.0,34.0] ||  -> equal(multiply(sk_c7,sk_c5),identity)**.
% 0.19/0.47  249[2:SpR:241.0,35.0] ||  -> equal(multiply(sk_c6,multiply(sk_c7,u)),multiply(identity,u))**.
% 0.19/0.47  251[2:Rew:33.0,249.0] ||  -> equal(multiply(sk_c6,multiply(sk_c7,u)),u)**.
% 0.19/0.47  264[2:SpR:243.0,251.0] ||  -> equal(multiply(sk_c6,identity),sk_c5)**.
% 0.19/0.47  269[0:SpR:104.0,104.0] ||  -> equal(multiply(inverse(inverse(u)),v),multiply(u,v))**.
% 0.19/0.47  274[0:SpR:1.0,104.0] ||  -> equal(multiply(inverse(sk_c7),sk_c6),sk_c8)**.
% 0.19/0.47  275[2:SpR:216.0,104.0] ||  -> equal(multiply(inverse(sk_c6),sk_c7),sk_c8)**.
% 0.19/0.47  279[2:SpR:214.0,104.0] ||  -> equal(multiply(inverse(sk_c5),sk_c7),sk_c6)**.
% 0.19/0.47  281[0:SpR:34.0,104.0] ||  -> equal(multiply(inverse(inverse(u)),identity),u)**.
% 0.19/0.47  283[2:SpR:251.0,104.0] ||  -> equal(multiply(inverse(sk_c6),u),multiply(sk_c7,u))**.
% 0.19/0.47  296[2:Rew:212.0,279.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c6)**.
% 0.19/0.47  303[2:Rew:283.0,275.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c8)**.
% 0.19/0.47  304[2:Rew:296.0,303.0] ||  -> equal(sk_c6,sk_c8)**.
% 0.19/0.47  306[2:Rew:304.0,1.0] ||  -> equal(multiply(sk_c7,sk_c8),sk_c8)**.
% 0.19/0.47  314[2:Rew:304.0,217.0] || equal(inverse(sk_c8),sk_c7)** equal(identity,sk_c8) -> .
% 0.19/0.47  317[2:Rew:304.0,264.0] ||  -> equal(multiply(sk_c8,identity),sk_c5)**.
% 0.19/0.47  333[0:Rew:269.0,281.0] ||  -> equal(multiply(u,identity),u)**.
% 0.19/0.47  334[2:Rew:333.0,317.0] ||  -> equal(sk_c5,sk_c8)**.
% 0.19/0.47  335[2:Rew:334.0,212.0] ||  -> equal(inverse(sk_c8),sk_c7)**.
% 0.19/0.47  336[2:Rew:334.0,243.0] ||  -> equal(multiply(sk_c7,sk_c8),identity)**.
% 0.19/0.47  340[2:Rew:306.0,336.0] ||  -> equal(identity,sk_c8)**.
% 0.19/0.47  358[2:Rew:340.0,314.1,335.0,314.0] || equal(sk_c7,sk_c7) equal(sk_c8,sk_c8)* -> .
% 0.19/0.47  359[2:Obv:358.1] ||  -> .
% 0.19/0.47  363[1:Spt:359.0,37.0,37.1,37.2,37.4,37.5,37.6,37.7,37.9,37.10] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(inverse(w),sk_c8) equal(inverse(sk_c7),sk_c6) equal(multiply(w,sk_c8),x)*+ equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c8)** equal(multiply(sk_c8,x),sk_c7)** equal(multiply(sk_c6,sk_c8),sk_c7)** -> .
% 0.19/0.47  364[1:EqR:363.4] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(inverse(w),sk_c8) equal(inverse(sk_c7),sk_c6) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c8)** equal(multiply(sk_c8,multiply(w,sk_c8)),sk_c7)** equal(multiply(sk_c6,sk_c8),sk_c7) -> .
% 0.19/0.47  366[2:Spt:8.0] ||  -> equal(inverse(sk_c7),sk_c6)**.
% 0.19/0.47  368[2:Rew:366.0,274.0] ||  -> equal(multiply(sk_c6,sk_c6),sk_c8)**.
% 0.19/0.47  370[2:Rew:366.0,364.3] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(inverse(w),sk_c8) equal(sk_c6,sk_c6) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c8)** equal(multiply(sk_c8,multiply(w,sk_c8)),sk_c7)** equal(multiply(sk_c6,sk_c8),sk_c7) -> .
% 0.19/0.47  371[2:Obv:370.3] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(inverse(w),sk_c8) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c8)** equal(multiply(sk_c8,multiply(w,sk_c8)),sk_c7)** equal(multiply(sk_c6,sk_c8),sk_c7) -> .
% 0.19/0.47  374[2:SpR:366.0,104.0] ||  -> equal(multiply(sk_c6,multiply(sk_c7,u)),u)**.
% 0.19/0.47  376[3:Spt:9.1] ||  -> equal(multiply(sk_c6,sk_c8),sk_c7)**.
% 0.19/0.47  379[3:Rew:376.0,371.6] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(inverse(w),sk_c8) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c8)** equal(multiply(sk_c8,multiply(w,sk_c8)),sk_c7)** equal(sk_c7,sk_c7) -> .
% 0.19/0.47  380[3:Obv:379.6] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(inverse(w),sk_c8) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c8)** equal(multiply(sk_c8,multiply(w,sk_c8)),sk_c7)** -> .
% 0.19/0.47  384[3:SpR:376.0,104.0] ||  -> equal(multiply(inverse(sk_c6),sk_c7),sk_c8)**.
% 0.19/0.47  386[4:Spt:12.0] ||  -> equal(inverse(sk_c5),sk_c7)**.
% 0.19/0.47  389[5:Spt:10.0] ||  -> equal(inverse(sk_c4),sk_c8)**.
% 0.19/0.47  396[6:Spt:13.1] ||  -> equal(multiply(sk_c5,sk_c6),sk_c7)**.
% 0.19/0.47  398[6:SpR:396.0,104.0] ||  -> equal(multiply(inverse(sk_c5),sk_c7),sk_c6)**.
% 0.19/0.47  400[6:Rew:386.0,398.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c6)**.
% 0.19/0.47  401[7:Spt:11.1] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8)**.
% 0.19/0.47  403[7:SpR:401.0,104.0] ||  -> equal(multiply(inverse(sk_c4),sk_c8),sk_c7)**.
% 0.19/0.47  405[7:Rew:389.0,403.0] ||  -> equal(multiply(sk_c8,sk_c8),sk_c7)**.
% 0.19/0.47  406[2:SpR:368.0,35.0] ||  -> equal(multiply(sk_c6,multiply(sk_c6,u)),multiply(sk_c8,u))**.
% 0.19/0.47  407[2:SpR:368.0,104.0] ||  -> equal(multiply(inverse(sk_c6),sk_c8),sk_c6)**.
% 0.19/0.47  409[6:SpR:400.0,35.0] ||  -> equal(multiply(sk_c7,multiply(sk_c7,u)),multiply(sk_c6,u))**.
% 0.19/0.47  410[6:SpR:400.0,104.0] ||  -> equal(multiply(inverse(sk_c7),sk_c6),sk_c7)**.
% 0.19/0.47  412[6:Rew:368.0,410.0,366.0,410.0] ||  -> equal(sk_c8,sk_c7)**.
% 0.19/0.47  414[6:Rew:412.0,389.0] ||  -> equal(inverse(sk_c4),sk_c7)**.
% 0.19/0.47  424[6:Rew:412.0,380.1] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c7) equal(inverse(w),sk_c8) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c7),sk_c8)** equal(multiply(sk_c8,multiply(w,sk_c8)),sk_c7)** -> .
% 0.19/0.47  425[6:Rew:412.0,384.0] ||  -> equal(multiply(inverse(sk_c6),sk_c7),sk_c7)**.
% 0.19/0.47  427[7:Rew:412.0,405.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c7)**.
% 0.19/0.47  428[6:Rew:412.0,407.0] ||  -> equal(multiply(inverse(sk_c6),sk_c7),sk_c6)**.
% 0.19/0.47  429[7:Rew:400.0,427.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.19/0.47  430[7:Rew:429.0,366.0] ||  -> equal(inverse(sk_c7),sk_c7)**.
% 0.19/0.47  434[7:Rew:429.0,374.0] ||  -> equal(multiply(sk_c7,multiply(sk_c7,u)),u)**.
% 0.19/0.47  439[7:Rew:434.0,409.0,429.0,409.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.47  446[7:Rew:439.0,424.5,412.0,424.5,412.0,424.4,429.0,424.3,412.0,424.2] || 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_c7)** equal(multiply(w,sk_c7),sk_c7)** -> .
% 0.19/0.47  447[7:Con:446.1] || equal(inverse(u),sk_c7) equal(multiply(u,sk_c7),sk_c7)** -> .
% 0.19/0.47  472[0:SpR:34.0,333.0] ||  -> equal(inverse(identity),identity)**.
% 0.19/0.47  474[4:SpR:386.0,34.0] ||  -> equal(multiply(sk_c7,sk_c5),identity)**.
% 0.19/0.47  475[6:SpR:414.0,34.0] ||  -> equal(multiply(sk_c7,sk_c4),identity)**.
% 0.19/0.47  478[7:Rew:439.0,474.0] ||  -> equal(identity,sk_c5)**.
% 0.19/0.47  480[7:Rew:478.0,333.0] ||  -> equal(multiply(u,sk_c5),u)**.
% 0.19/0.47  482[7:Rew:478.0,472.0] ||  -> equal(inverse(sk_c5),sk_c5)**.
% 0.19/0.47  483[7:Rew:386.0,482.0] ||  -> equal(sk_c5,sk_c7)**.
% 0.19/0.47  493[7:Rew:483.0,480.0] ||  -> equal(multiply(u,sk_c7),u)**.
% 0.19/0.47  494[7:Rew:493.0,447.1] || equal(inverse(u),sk_c7)** equal(u,sk_c7) -> .
% 0.19/0.47  520[7:SpL:430.0,494.0] || equal(sk_c7,sk_c7)* equal(sk_c7,sk_c7)* -> .
% 0.19/0.47  521[7:Obv:520.1] ||  -> .
% 0.19/0.47  522[7:Spt:521.0,11.1,401.0] || equal(multiply(sk_c4,sk_c7),sk_c8)** -> .
% 0.19/0.47  523[7:Spt:521.0,11.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.47  524[6:Rew:425.0,428.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.19/0.47  531[7:Rew:412.0,522.0] || equal(multiply(sk_c4,sk_c7),sk_c7)** -> .
% 0.19/0.47  533[6:Rew:524.0,374.0] ||  -> equal(multiply(sk_c7,multiply(sk_c7,u)),u)**.
% 0.19/0.47  538[6:Rew:533.0,409.0,524.0,409.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.47  543[6:Rew:538.0,475.0] ||  -> equal(identity,sk_c4)**.
% 0.19/0.47  545[6:Rew:543.0,472.0] ||  -> equal(inverse(sk_c4),sk_c4)**.
% 0.19/0.47  552[6:Rew:414.0,545.0] ||  -> equal(sk_c4,sk_c7)**.
% 0.19/0.47  554[7:Rew:552.0,531.0] || equal(multiply(sk_c7,sk_c7),sk_c7)** -> .
% 0.19/0.47  565[7:Rew:538.0,554.0] || equal(sk_c7,sk_c7)* -> .
% 0.19/0.47  566[7:Obv:565.0] ||  -> .
% 0.19/0.47  587[6:Spt:566.0,13.1,396.0] || equal(multiply(sk_c5,sk_c6),sk_c7)** -> .
% 0.19/0.47  588[6:Spt:566.0,13.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.47  589[6:MRR:31.1,587.0] ||  -> equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.47  590[6:MRR:7.0,587.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.47  591[6:MRR:19.0,587.0] ||  -> equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.47  592[6:MRR:25.0,587.0] ||  -> equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.47  600[6:SpR:589.0,104.0] ||  -> equal(multiply(sk_c8,multiply(sk_c2,u)),u)**.
% 0.19/0.47  615[6:SpR:590.0,104.0] ||  -> equal(multiply(inverse(sk_c1),sk_c8),sk_c7)**.
% 0.19/0.47  617[6:Rew:1.0,615.0,588.0,615.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.19/0.47  624[6:Rew:617.0,587.0] || equal(multiply(sk_c5,sk_c7),sk_c7)** -> .
% 0.19/0.47  625[6:Rew:617.0,374.0] ||  -> equal(multiply(sk_c7,multiply(sk_c7,u)),u)**.
% 0.19/0.47  627[6:Rew:617.0,406.0] ||  -> equal(multiply(sk_c7,multiply(sk_c7,u)),multiply(sk_c8,u))**.
% 0.19/0.47  634[6:Rew:625.0,627.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.19/0.47  637[6:Rew:634.0,600.0] ||  -> equal(multiply(sk_c2,u),u)**.
% 0.19/0.47  638[6:Rew:634.0,591.0] ||  -> equal(sk_c3,sk_c7)**.
% 0.19/0.47  640[6:Rew:638.0,592.0] ||  -> equal(multiply(sk_c2,sk_c8),sk_c7)**.
% 0.19/0.47  641[6:Rew:637.0,640.0] ||  -> equal(sk_c8,sk_c7)**.
% 0.19/0.47  647[6:Rew:641.0,634.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.47  651[6:Rew:647.0,474.0] ||  -> equal(identity,sk_c5)**.
% 0.19/0.47  652[6:Rew:651.0,472.0] ||  -> equal(inverse(sk_c5),sk_c5)**.
% 0.19/0.47  656[6:Rew:386.0,652.0] ||  -> equal(sk_c5,sk_c7)**.
% 0.19/0.47  658[6:Rew:656.0,624.0] || equal(multiply(sk_c7,sk_c7),sk_c7)** -> .
% 0.19/0.47  664[6:Rew:647.0,658.0] || equal(sk_c7,sk_c7)* -> .
% 0.19/0.47  665[6:Obv:664.0] ||  -> .
% 0.19/0.47  674[5:Spt:665.0,10.0,389.0] || equal(inverse(sk_c4),sk_c8)** -> .
% 0.19/0.47  675[5:Spt:665.0,10.1] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.47  676[5:MRR:28.0,674.0] ||  -> equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.48  677[5:MRR:4.0,674.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.48  678[5:MRR:16.0,674.0] ||  -> equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.48  679[5:MRR:22.0,674.0] ||  -> equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.48  702[4:SpR:474.0,104.0] ||  -> equal(multiply(inverse(sk_c7),identity),sk_c5)**.
% 0.19/0.48  704[4:Rew:366.0,702.0] ||  -> equal(multiply(sk_c6,identity),sk_c5)**.
% 0.19/0.48  705[4:Rew:333.0,704.0] ||  -> equal(sk_c5,sk_c6)**.
% 0.19/0.48  706[4:Rew:705.0,386.0] ||  -> equal(inverse(sk_c6),sk_c7)**.
% 0.19/0.48  707[4:Rew:705.0,474.0] ||  -> equal(multiply(sk_c7,sk_c6),identity)**.
% 0.19/0.48  710[4:Rew:706.0,384.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c8)**.
% 0.19/0.48  716[5:SpR:677.0,104.0] ||  -> equal(multiply(inverse(sk_c1),sk_c8),sk_c7)**.
% 0.19/0.48  718[5:Rew:1.0,716.0,675.0,716.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.19/0.48  719[5:Rew:718.0,366.0] ||  -> equal(inverse(sk_c7),sk_c7)**.
% 0.19/0.48  732[5:Rew:718.0,380.3] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(inverse(w),sk_c8) equal(multiply(u,sk_c7),sk_c7)** equal(multiply(v,sk_c7),sk_c8)** equal(multiply(sk_c8,multiply(w,sk_c8)),sk_c7)** -> .
% 0.19/0.48  733[5:Rew:718.0,707.0] ||  -> equal(multiply(sk_c7,sk_c7),identity)**.
% 0.19/0.48  734[5:Rew:710.0,733.0] ||  -> equal(identity,sk_c8)**.
% 0.19/0.48  736[5:Rew:734.0,333.0] ||  -> equal(multiply(u,sk_c8),u)**.
% 0.19/0.48  737[5:Rew:734.0,33.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.19/0.48  739[5:Rew:736.0,679.0] ||  -> equal(sk_c2,sk_c3)**.
% 0.19/0.48  740[5:Rew:739.0,676.0] ||  -> equal(inverse(sk_c3),sk_c8)**.
% 0.19/0.48  742[5:Rew:737.0,678.0] ||  -> equal(sk_c3,sk_c7)**.
% 0.19/0.48  744[5:Rew:742.0,740.0] ||  -> equal(inverse(sk_c7),sk_c8)**.
% 0.19/0.48  745[5:Rew:719.0,744.0] ||  -> equal(sk_c8,sk_c7)**.
% 0.19/0.48  751[5:Rew:745.0,736.0] ||  -> equal(multiply(u,sk_c7),u)**.
% 0.19/0.48  752[5:Rew:745.0,737.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.48  765[5:Rew:751.0,732.5,752.0,732.5,745.0,732.5,751.0,732.4,745.0,732.4,751.0,732.3,745.0,732.2,745.0,732.1] || equal(inverse(u),sk_c7)** equal(inverse(v),sk_c7)** equal(inverse(w),sk_c7)** equal(u,sk_c7) equal(v,sk_c7) equal(w,sk_c7) -> .
% 0.19/0.48  766[5:Con:765.1] || equal(inverse(u),sk_c7)** equal(u,sk_c7) -> .
% 0.19/0.48  830[5:SpL:719.0,766.0] || equal(sk_c7,sk_c7)* equal(sk_c7,sk_c7)* -> .
% 0.19/0.48  832[5:Obv:830.1] ||  -> .
% 0.19/0.48  833[4:Spt:832.0,12.0,386.0] || equal(inverse(sk_c5),sk_c7)** -> .
% 0.19/0.48  834[4:Spt:832.0,12.1] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.48  835[4:MRR:30.0,833.0] ||  -> equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.48  836[4:MRR:6.0,833.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.48  837[4:MRR:18.0,833.0] ||  -> equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.48  838[4:MRR:24.0,833.0] ||  -> equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.48  843[4:SpR:835.0,104.0] ||  -> equal(multiply(sk_c8,multiply(sk_c2,u)),u)**.
% 0.19/0.48  859[4:SpR:836.0,104.0] ||  -> equal(multiply(inverse(sk_c1),sk_c8),sk_c7)**.
% 0.19/0.48  861[4:Rew:1.0,859.0,834.0,859.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.19/0.48  862[4:Rew:861.0,366.0] ||  -> equal(inverse(sk_c7),sk_c7)**.
% 0.19/0.48  868[4:Rew:861.0,374.0] ||  -> equal(multiply(sk_c7,multiply(sk_c7,u)),u)**.
% 0.19/0.48  870[4:Rew:861.0,406.0] ||  -> equal(multiply(sk_c7,multiply(sk_c7,u)),multiply(sk_c8,u))**.
% 0.19/0.48  874[4:Rew:861.0,380.3] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c8) equal(inverse(w),sk_c8) equal(multiply(u,sk_c7),sk_c7)** equal(multiply(v,sk_c7),sk_c8)** equal(multiply(sk_c8,multiply(w,sk_c8)),sk_c7)** -> .
% 0.19/0.48  877[4:Rew:868.0,870.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.19/0.48  880[4:Rew:877.0,843.0] ||  -> equal(multiply(sk_c2,u),u)**.
% 0.19/0.48  881[4:Rew:877.0,837.0] ||  -> equal(sk_c3,sk_c7)**.
% 0.19/0.48  882[4:Rew:881.0,838.0] ||  -> equal(multiply(sk_c2,sk_c8),sk_c7)**.
% 0.19/0.48  883[4:Rew:880.0,882.0] ||  -> equal(sk_c8,sk_c7)**.
% 0.19/0.48  884[4:Rew:883.0,835.0] ||  -> equal(inverse(sk_c2),sk_c7)**.
% 0.19/0.48  888[4:Rew:883.0,877.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.48  893[4:Rew:888.0,874.5,883.0,874.5,883.0,874.4,883.0,874.2,883.0,874.1] || 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_c7)** equal(multiply(w,sk_c7),sk_c7)** -> .
% 0.19/0.48  894[4:Con:893.1] || equal(inverse(u),sk_c7) equal(multiply(u,sk_c7),sk_c7)** -> .
% 0.19/0.48  917[4:SpR:880.0,333.0] ||  -> equal(identity,sk_c2)**.
% 0.19/0.48  919[4:Rew:917.0,472.0] ||  -> equal(inverse(sk_c2),sk_c2)**.
% 0.19/0.48  921[4:Rew:917.0,333.0] ||  -> equal(multiply(u,sk_c2),u)**.
% 0.19/0.48  923[4:Rew:884.0,919.0] ||  -> equal(sk_c2,sk_c7)**.
% 0.19/0.48  928[4:Rew:923.0,921.0] ||  -> equal(multiply(u,sk_c7),u)**.
% 0.19/0.48  929[4:Rew:928.0,894.1] || equal(inverse(u),sk_c7)** equal(u,sk_c7) -> .
% 0.19/0.48  959[4:SpL:862.0,929.0] || equal(sk_c7,sk_c7)* equal(sk_c7,sk_c7)* -> .
% 0.19/0.48  960[4:Obv:959.1] ||  -> .
% 0.19/0.48  961[3:Spt:960.0,9.1,376.0] || equal(multiply(sk_c6,sk_c8),sk_c7)** -> .
% 0.19/0.48  962[3:Spt:960.0,9.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.48  964[3:MRR:3.0,961.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.48  984[3:SpR:964.0,104.0] ||  -> equal(multiply(inverse(sk_c1),sk_c8),sk_c7)**.
% 0.19/0.48  986[3:Rew:1.0,984.0,962.0,984.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.19/0.48  988[3:Rew:986.0,1.0] ||  -> equal(multiply(sk_c7,sk_c8),sk_c7)**.
% 0.19/0.48  991[3:Rew:986.0,961.0] || equal(multiply(sk_c7,sk_c8),sk_c7)** -> .
% 0.19/0.48  996[3:Rew:988.0,991.0] || equal(sk_c7,sk_c7)* -> .
% 0.19/0.48  997[3:Obv:996.0] ||  -> .
% 0.19/0.48  1013[2:Spt:997.0,8.0,366.0] || equal(inverse(sk_c7),sk_c6)** -> .
% 0.19/0.48  1014[2:Spt:997.0,8.1] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.48  1015[2:MRR:26.0,1013.0] ||  -> equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.48  1016[2:MRR:2.0,1013.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.48  1017[2:MRR:14.0,1013.0] ||  -> equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.48  1018[2:MRR:20.0,1013.0] ||  -> equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.48  1019[2:SpR:1014.0,104.0] ||  -> equal(multiply(sk_c7,multiply(sk_c1,u)),u)**.
% 0.19/0.48  1021[2:SpR:1015.0,104.0] ||  -> equal(multiply(sk_c8,multiply(sk_c2,u)),u)**.
% 0.19/0.48  1027[2:SpR:1016.0,104.0] ||  -> equal(multiply(inverse(sk_c1),sk_c8),sk_c7)**.
% 0.19/0.48  1029[2:Rew:1.0,1027.0,1014.0,1027.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.19/0.48  1031[2:Rew:1029.0,1013.0] || equal(inverse(sk_c7),sk_c7)** -> .
% 0.19/0.48  1032[2:Rew:1029.0,274.0] ||  -> equal(multiply(inverse(sk_c7),sk_c7),sk_c8)**.
% 0.19/0.48  1034[2:Rew:34.0,1032.0] ||  -> equal(identity,sk_c8)**.
% 0.19/0.48  1036[2:Rew:1034.0,333.0] ||  -> equal(multiply(u,sk_c8),u)**.
% 0.19/0.48  1037[2:Rew:1034.0,33.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.19/0.48  1039[2:Rew:1036.0,1018.0] ||  -> equal(sk_c2,sk_c3)**.
% 0.19/0.48  1040[2:Rew:1039.0,1015.0] ||  -> equal(inverse(sk_c3),sk_c8)**.
% 0.19/0.48  1041[2:Rew:1039.0,1021.0] ||  -> equal(multiply(sk_c8,multiply(sk_c3,u)),u)**.
% 0.19/0.48  1042[2:Rew:1037.0,1017.0] ||  -> equal(sk_c3,sk_c7)**.
% 0.19/0.48  1044[2:Rew:1042.0,1040.0] ||  -> equal(inverse(sk_c7),sk_c8)**.
% 0.19/0.48  1045[2:Rew:1044.0,1031.0] || equal(sk_c8,sk_c7)** -> .
% 0.19/0.48  1046[2:Rew:1037.0,1041.0,1042.0,1041.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.48  1047[2:Rew:1046.0,1019.0] ||  -> equal(multiply(sk_c1,u),u)**.
% 0.19/0.48  1048[2:Rew:1047.0,1016.0] ||  -> equal(sk_c8,sk_c7)**.
% 0.19/0.48  1049[2:MRR:1048.0,1045.0] ||  -> .
% 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_3 prove_this_4 prove_this_5 prove_this_6 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_16 prove_this_18 prove_this_19 prove_this_20 prove_this_22 prove_this_24 prove_this_25 prove_this_26 prove_this_28 prove_this_30 prove_this_31 prove_this_32 left_identity left_inverse associativity
% 0.19/0.48  
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