TSTP Solution File: GRP329-1 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : GRP329-1 : TPTP v8.1.0. Released v2.5.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n019.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 0.22s 0.50s
% Output   : Refutation 0.22s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.14  % Problem  : GRP329-1 : TPTP v8.1.0. Released v2.5.0.
% 0.08/0.15  % Command  : run_spass %d %s
% 0.15/0.37  % Computer : n019.cluster.edu
% 0.15/0.37  % Model    : x86_64 x86_64
% 0.15/0.37  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.37  % Memory   : 8042.1875MB
% 0.15/0.37  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.37  % CPULimit : 300
% 0.15/0.37  % WCLimit  : 600
% 0.15/0.37  % DateTime : Mon Jun 13 03:58:10 EDT 2022
% 0.15/0.37  % CPUTime  : 
% 0.22/0.50  
% 0.22/0.50  SPASS V 3.9 
% 0.22/0.50  SPASS beiseite: Proof found.
% 0.22/0.50  % SZS status Theorem
% 0.22/0.50  Problem: /export/starexec/sandbox2/benchmark/theBenchmark.p 
% 0.22/0.50  SPASS derived 632 clauses, backtracked 385 clauses, performed 14 splits and kept 556 clauses.
% 0.22/0.50  SPASS allocated 63577 KBytes.
% 0.22/0.50  SPASS spent	0:00:00.12 on the problem.
% 0.22/0.50  		0:00:00.04 for the input.
% 0.22/0.50  		0:00:00.00 for the FLOTTER CNF translation.
% 0.22/0.50  		0:00:00.00 for inferences.
% 0.22/0.50  		0:00:00.00 for the backtracking.
% 0.22/0.50  		0:00:00.05 for the reduction.
% 0.22/0.50  
% 0.22/0.50  
% 0.22/0.50  Here is a proof with depth 5, length 262 :
% 0.22/0.50  % SZS output start Refutation
% 0.22/0.50  1[0:Inp] ||  -> equal(inverse(sk_c8),sk_c7) equal(multiply(sk_c8,sk_c9),sk_c7)**.
% 0.22/0.50  4[0:Inp] ||  -> equal(multiply(sk_c5,sk_c8),sk_c9)** equal(multiply(sk_c8,sk_c9),sk_c7).
% 0.22/0.50  5[0:Inp] ||  -> equal(inverse(sk_c5),sk_c8) equal(multiply(sk_c8,sk_c9),sk_c7)**.
% 0.22/0.50  6[0:Inp] ||  -> equal(multiply(sk_c6,sk_c9),sk_c7)** equal(multiply(sk_c8,sk_c9),sk_c7).
% 0.22/0.50  7[0:Inp] ||  -> equal(inverse(sk_c6),sk_c9) equal(multiply(sk_c8,sk_c9),sk_c7)**.
% 0.22/0.50  8[0:Inp] ||  -> equal(inverse(sk_c8),sk_c7) equal(multiply(sk_c1,sk_c8),sk_c9)**.
% 0.22/0.50  11[0:Inp] ||  -> equal(multiply(sk_c5,sk_c8),sk_c9) equal(multiply(sk_c1,sk_c8),sk_c9)**.
% 0.22/0.50  12[0:Inp] ||  -> equal(inverse(sk_c5),sk_c8) equal(multiply(sk_c1,sk_c8),sk_c9)**.
% 0.22/0.50  13[0:Inp] ||  -> equal(multiply(sk_c6,sk_c9),sk_c7) equal(multiply(sk_c1,sk_c8),sk_c9)**.
% 0.22/0.50  14[0:Inp] ||  -> equal(inverse(sk_c6),sk_c9) equal(multiply(sk_c1,sk_c8),sk_c9)**.
% 0.22/0.50  15[0:Inp] ||  -> equal(inverse(sk_c8),sk_c7) equal(inverse(sk_c1),sk_c8)**.
% 0.22/0.50  18[0:Inp] ||  -> equal(inverse(sk_c1),sk_c8) equal(multiply(sk_c5,sk_c8),sk_c9)**.
% 0.22/0.50  19[0:Inp] ||  -> equal(inverse(sk_c5),sk_c8) equal(inverse(sk_c1),sk_c8)**.
% 0.22/0.50  20[0:Inp] ||  -> equal(inverse(sk_c1),sk_c8) equal(multiply(sk_c6,sk_c9),sk_c7)**.
% 0.22/0.50  21[0:Inp] ||  -> equal(inverse(sk_c6),sk_c9) equal(inverse(sk_c1),sk_c8)**.
% 0.22/0.50  22[0:Inp] ||  -> equal(inverse(sk_c8),sk_c7) equal(multiply(sk_c9,sk_c3),sk_c8)**.
% 0.22/0.50  27[0:Inp] ||  -> equal(multiply(sk_c6,sk_c9),sk_c7)** equal(multiply(sk_c9,sk_c3),sk_c8).
% 0.22/0.50  28[0:Inp] ||  -> equal(inverse(sk_c6),sk_c9) equal(multiply(sk_c9,sk_c3),sk_c8)**.
% 0.22/0.50  29[0:Inp] ||  -> equal(inverse(sk_c8),sk_c7) equal(multiply(sk_c2,sk_c9),sk_c3)**.
% 0.22/0.50  34[0:Inp] ||  -> equal(multiply(sk_c6,sk_c9),sk_c7) equal(multiply(sk_c2,sk_c9),sk_c3)**.
% 0.22/0.50  35[0:Inp] ||  -> equal(inverse(sk_c6),sk_c9) equal(multiply(sk_c2,sk_c9),sk_c3)**.
% 0.22/0.50  36[0:Inp] ||  -> equal(inverse(sk_c8),sk_c7) equal(inverse(sk_c2),sk_c9)**.
% 0.22/0.50  39[0:Inp] ||  -> equal(inverse(sk_c2),sk_c9) equal(multiply(sk_c5,sk_c8),sk_c9)**.
% 0.22/0.50  40[0:Inp] ||  -> equal(inverse(sk_c5),sk_c8) equal(inverse(sk_c2),sk_c9)**.
% 0.22/0.50  41[0:Inp] ||  -> equal(inverse(sk_c2),sk_c9) equal(multiply(sk_c6,sk_c9),sk_c7)**.
% 0.22/0.50  42[0:Inp] ||  -> equal(inverse(sk_c6),sk_c9) equal(inverse(sk_c2),sk_c9)**.
% 0.22/0.50  43[0:Inp] || equal(multiply(sk_c8,sk_c9),sk_c7) equal(multiply(u,sk_c8),sk_c9)** equal(inverse(u),sk_c8) equal(multiply(sk_c9,v),sk_c8)** equal(multiply(w,sk_c9),v)* equal(inverse(w),sk_c9) equal(inverse(sk_c8),sk_c7) equal(multiply(x,sk_c8),sk_c7)** equal(inverse(x),sk_c8) equal(multiply(y,sk_c8),sk_c9)** equal(inverse(y),sk_c8) equal(multiply(z,sk_c9),sk_c7)** equal(inverse(z),sk_c9) -> .
% 0.22/0.50  44[0:Inp] ||  -> equal(multiply(identity,u),u)**.
% 0.22/0.50  45[0:Inp] ||  -> equal(multiply(inverse(u),u),identity)**.
% 0.22/0.50  46[0:Inp] ||  -> equal(multiply(multiply(u,v),w),multiply(u,multiply(v,w)))**.
% 0.22/0.50  47[0:Con:43.9] || equal(inverse(u),sk_c9) equal(inverse(v),sk_c8) equal(inverse(w),sk_c9) equal(inverse(x),sk_c8) equal(inverse(sk_c8),sk_c7) equal(multiply(w,sk_c9),y)*+ equal(multiply(u,sk_c9),sk_c7)** equal(multiply(v,sk_c8),sk_c7)** equal(multiply(x,sk_c8),sk_c9)** equal(multiply(sk_c9,y),sk_c8)** equal(multiply(sk_c8,sk_c9),sk_c7) -> .
% 0.22/0.50  48[1:Spt:47.3,47.8] || equal(inverse(u),sk_c8) equal(multiply(u,sk_c8),sk_c9)** -> .
% 0.22/0.50  53[2:Spt:15.1] ||  -> equal(inverse(sk_c1),sk_c8)**.
% 0.22/0.50  61[3:Spt:8.1] ||  -> equal(multiply(sk_c1,sk_c8),sk_c9)**.
% 0.22/0.50  63[3:SpL:61.0,48.1] || equal(inverse(sk_c1),sk_c8)** equal(sk_c9,sk_c9) -> .
% 0.22/0.50  64[3:Obv:63.1] || equal(inverse(sk_c1),sk_c8)** -> .
% 0.22/0.50  65[3:Rew:53.0,64.0] || equal(sk_c8,sk_c8)* -> .
% 0.22/0.50  66[3:Obv:65.0] ||  -> .
% 0.22/0.50  67[3:Spt:66.0,8.1,61.0] || equal(multiply(sk_c1,sk_c8),sk_c9)** -> .
% 0.22/0.50  68[3:Spt:66.0,8.0] ||  -> equal(inverse(sk_c8),sk_c7)**.
% 0.22/0.50  70[3:MRR:12.1,67.0] ||  -> equal(inverse(sk_c5),sk_c8)**.
% 0.22/0.50  73[3:MRR:11.1,67.0] ||  -> equal(multiply(sk_c5,sk_c8),sk_c9)**.
% 0.22/0.50  81[3:SpL:73.0,48.1] || equal(inverse(sk_c5),sk_c8)** equal(sk_c9,sk_c9) -> .
% 0.22/0.50  82[3:Obv:81.1] || equal(inverse(sk_c5),sk_c8)** -> .
% 0.22/0.50  83[3:Rew:70.0,82.0] || equal(sk_c8,sk_c8)* -> .
% 0.22/0.50  84[3:Obv:83.0] ||  -> .
% 0.22/0.50  85[2:Spt:84.0,15.1,53.0] || equal(inverse(sk_c1),sk_c8)** -> .
% 0.22/0.50  86[2:Spt:84.0,15.0] ||  -> equal(inverse(sk_c8),sk_c7)**.
% 0.22/0.50  88[2:MRR:19.1,85.0] ||  -> equal(inverse(sk_c5),sk_c8)**.
% 0.22/0.50  91[2:MRR:18.0,85.0] ||  -> equal(multiply(sk_c5,sk_c8),sk_c9)**.
% 0.22/0.50  99[2:SpL:91.0,48.1] || equal(inverse(sk_c5),sk_c8)** equal(sk_c9,sk_c9) -> .
% 0.22/0.50  100[2:Obv:99.1] || equal(inverse(sk_c5),sk_c8)** -> .
% 0.22/0.50  101[2:Rew:88.0,100.0] || equal(sk_c8,sk_c8)* -> .
% 0.22/0.50  102[2:Obv:101.0] ||  -> .
% 0.22/0.50  103[1:Spt:102.0,47.0,47.1,47.2,47.4,47.5,47.6,47.7,47.9,47.10] || equal(inverse(u),sk_c9) equal(inverse(v),sk_c8) equal(inverse(w),sk_c9) equal(inverse(sk_c8),sk_c7) equal(multiply(w,sk_c9),x)*+ equal(multiply(u,sk_c9),sk_c7)** equal(multiply(v,sk_c8),sk_c7)** equal(multiply(sk_c9,x),sk_c8)** equal(multiply(sk_c8,sk_c9),sk_c7) -> .
% 0.22/0.50  104[1:EqR:103.4] || equal(inverse(u),sk_c9) equal(inverse(v),sk_c8) equal(inverse(w),sk_c9) equal(inverse(sk_c8),sk_c7) equal(multiply(u,sk_c9),sk_c7)** equal(multiply(v,sk_c8),sk_c7)** equal(multiply(sk_c9,multiply(w,sk_c9)),sk_c8)** equal(multiply(sk_c8,sk_c9),sk_c7) -> .
% 0.22/0.50  106[2:Spt:1.1] ||  -> equal(multiply(sk_c8,sk_c9),sk_c7)**.
% 0.22/0.50  109[2:Rew:106.0,104.7] || equal(inverse(u),sk_c9) equal(inverse(v),sk_c8) equal(inverse(w),sk_c9) equal(inverse(sk_c8),sk_c7) equal(multiply(u,sk_c9),sk_c7)** equal(multiply(v,sk_c8),sk_c7)** equal(multiply(sk_c9,multiply(w,sk_c9)),sk_c8)** equal(sk_c7,sk_c7) -> .
% 0.22/0.50  110[2:Obv:109.7] || equal(inverse(u),sk_c9) equal(inverse(v),sk_c8) equal(inverse(w),sk_c9) equal(inverse(sk_c8),sk_c7) equal(multiply(u,sk_c9),sk_c7)** equal(multiply(v,sk_c8),sk_c7)** equal(multiply(sk_c9,multiply(w,sk_c9)),sk_c8)** -> .
% 0.22/0.50  114[3:Spt:15.0] ||  -> equal(inverse(sk_c8),sk_c7)**.
% 0.22/0.50  117[3:Rew:114.0,110.3] || equal(inverse(u),sk_c9) equal(inverse(v),sk_c8) equal(inverse(w),sk_c9) equal(sk_c7,sk_c7) equal(multiply(u,sk_c9),sk_c7)** equal(multiply(v,sk_c8),sk_c7)** equal(multiply(sk_c9,multiply(w,sk_c9)),sk_c8)** -> .
% 0.22/0.50  118[3:Obv:117.3] || equal(inverse(u),sk_c9) equal(inverse(v),sk_c8) equal(inverse(w),sk_c9) equal(multiply(u,sk_c9),sk_c7)** equal(multiply(v,sk_c8),sk_c7)** equal(multiply(sk_c9,multiply(w,sk_c9)),sk_c8)** -> .
% 0.22/0.50  122[4:Spt:21.1] ||  -> equal(inverse(sk_c1),sk_c8)**.
% 0.22/0.50  124[5:Spt:42.1] ||  -> equal(inverse(sk_c2),sk_c9)**.
% 0.22/0.50  126[6:Spt:14.1] ||  -> equal(multiply(sk_c1,sk_c8),sk_c9)**.
% 0.22/0.50  129[3:SpR:114.0,45.0] ||  -> equal(multiply(sk_c7,sk_c8),identity)**.
% 0.22/0.50  130[4:SpR:122.0,45.0] ||  -> equal(multiply(sk_c8,sk_c1),identity)**.
% 0.22/0.50  131[5:SpR:124.0,45.0] ||  -> equal(multiply(sk_c9,sk_c2),identity)**.
% 0.22/0.50  132[7:Spt:28.1] ||  -> equal(multiply(sk_c9,sk_c3),sk_c8)**.
% 0.22/0.50  134[8:Spt:35.1] ||  -> equal(multiply(sk_c2,sk_c9),sk_c3)**.
% 0.22/0.50  140[0:SpR:45.0,46.0] ||  -> equal(multiply(inverse(u),multiply(u,v)),multiply(identity,v))**.
% 0.22/0.50  144[3:SpR:129.0,46.0] ||  -> equal(multiply(sk_c7,multiply(sk_c8,u)),multiply(identity,u))**.
% 0.22/0.50  146[3:Rew:44.0,144.0] ||  -> equal(multiply(sk_c7,multiply(sk_c8,u)),u)**.
% 0.22/0.50  147[0:Rew:44.0,140.0] ||  -> equal(multiply(inverse(u),multiply(u,v)),v)**.
% 0.22/0.50  157[3:SpR:106.0,146.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c9)**.
% 0.22/0.50  158[4:SpR:130.0,146.0] ||  -> equal(multiply(sk_c7,identity),sk_c1)**.
% 0.22/0.50  160[3:SpR:157.0,46.0] ||  -> equal(multiply(sk_c7,multiply(sk_c7,u)),multiply(sk_c9,u))**.
% 0.22/0.50  163[0:SpR:147.0,147.0] ||  -> equal(multiply(inverse(inverse(u)),v),multiply(u,v))**.
% 0.22/0.50  166[0:SpR:45.0,147.0] ||  -> equal(multiply(inverse(inverse(u)),identity),u)**.
% 0.22/0.50  167[2:SpR:106.0,147.0] ||  -> equal(multiply(inverse(sk_c8),sk_c7),sk_c9)**.
% 0.22/0.50  168[8:SpR:134.0,147.0] ||  -> equal(multiply(inverse(sk_c2),sk_c3),sk_c9)**.
% 0.22/0.50  169[6:SpR:126.0,147.0] ||  -> equal(multiply(inverse(sk_c1),sk_c9),sk_c8)**.
% 0.22/0.50  172[5:SpR:131.0,147.0] ||  -> equal(multiply(inverse(sk_c9),identity),sk_c2)**.
% 0.22/0.50  181[8:Rew:132.0,168.0,124.0,168.0] ||  -> equal(sk_c9,sk_c8)**.
% 0.22/0.50  182[8:Rew:181.0,106.0] ||  -> equal(multiply(sk_c8,sk_c8),sk_c7)**.
% 0.22/0.50  191[8:Rew:181.0,118.0] || equal(inverse(u),sk_c8) equal(inverse(v),sk_c8) equal(inverse(w),sk_c9) equal(multiply(u,sk_c9),sk_c7)** equal(multiply(v,sk_c8),sk_c7)** equal(multiply(sk_c9,multiply(w,sk_c9)),sk_c8)** -> .
% 0.22/0.50  198[6:Rew:122.0,169.0] ||  -> equal(multiply(sk_c8,sk_c9),sk_c8)**.
% 0.22/0.50  199[8:Rew:182.0,198.0,181.0,198.0] ||  -> equal(sk_c7,sk_c8)**.
% 0.22/0.50  200[8:Rew:199.0,114.0] ||  -> equal(inverse(sk_c8),sk_c8)**.
% 0.22/0.50  201[8:Rew:199.0,129.0] ||  -> equal(multiply(sk_c8,sk_c8),identity)**.
% 0.22/0.50  204[8:Rew:199.0,182.0] ||  -> equal(multiply(sk_c8,sk_c8),sk_c8)**.
% 0.22/0.50  206[8:Rew:201.0,204.0] ||  -> equal(identity,sk_c8)**.
% 0.22/0.50  207[8:Rew:206.0,44.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.22/0.50  231[8:Rew:206.0,166.0] ||  -> equal(multiply(inverse(inverse(u)),sk_c8),u)**.
% 0.22/0.50  238[8:Rew:163.0,231.0] ||  -> equal(multiply(u,sk_c8),u)**.
% 0.22/0.50  245[8:Rew:238.0,191.5,207.0,191.5,181.0,191.5,238.0,191.4,199.0,191.4,238.0,191.3,181.0,191.3,199.0,191.3,181.0,191.2] || equal(inverse(u),sk_c8)** equal(inverse(v),sk_c8)** equal(inverse(w),sk_c8)** equal(u,sk_c8) equal(v,sk_c8) equal(w,sk_c8) -> .
% 0.22/0.50  246[8:Con:245.1] || equal(inverse(u),sk_c8)** equal(u,sk_c8) -> .
% 0.22/0.50  310[8:SpL:200.0,246.0] || equal(sk_c8,sk_c8)* equal(sk_c8,sk_c8)* -> .
% 0.22/0.50  312[8:Obv:310.1] ||  -> .
% 0.22/0.50  313[8:Spt:312.0,35.1,134.0] || equal(multiply(sk_c2,sk_c9),sk_c3)** -> .
% 0.22/0.50  314[8:Spt:312.0,35.0] ||  -> equal(inverse(sk_c6),sk_c9)**.
% 0.22/0.50  315[6:Rew:106.0,198.0] ||  -> equal(sk_c7,sk_c8)**.
% 0.22/0.50  316[6:Rew:315.0,114.0] ||  -> equal(inverse(sk_c8),sk_c8)**.
% 0.22/0.50  317[6:Rew:315.0,157.0] ||  -> equal(multiply(sk_c8,sk_c8),sk_c9)**.
% 0.22/0.50  319[6:Rew:315.0,129.0] ||  -> equal(multiply(sk_c8,sk_c8),identity)**.
% 0.22/0.50  321[6:Rew:319.0,317.0] ||  -> equal(identity,sk_c9)**.
% 0.22/0.50  322[6:Rew:321.0,131.0] ||  -> equal(multiply(sk_c9,sk_c2),sk_c9)**.
% 0.22/0.50  326[6:Rew:321.0,44.0] ||  -> equal(multiply(sk_c9,u),u)**.
% 0.22/0.50  331[6:Rew:326.0,322.0] ||  -> equal(sk_c2,sk_c9)**.
% 0.22/0.50  332[7:Rew:326.0,132.0] ||  -> equal(sk_c3,sk_c8)**.
% 0.22/0.50  342[8:Rew:326.0,313.0,331.0,313.0,332.0,313.0] || equal(sk_c9,sk_c8)** -> .
% 0.22/0.50  346[6:Rew:321.0,166.0] ||  -> equal(multiply(inverse(inverse(u)),sk_c9),u)**.
% 0.22/0.50  359[6:Rew:163.0,346.0] ||  -> equal(multiply(u,sk_c9),u)**.
% 0.22/0.50  360[7:Rew:331.0,34.1,359.0,34.1,332.0,34.1,359.0,34.0,315.0,34.0] ||  -> equal(sk_c6,sk_c8)** equal(sk_c9,sk_c8).
% 0.22/0.50  361[8:MRR:360.1,342.0] ||  -> equal(sk_c6,sk_c8)**.
% 0.22/0.50  362[8:Rew:361.0,314.0] ||  -> equal(inverse(sk_c8),sk_c9)**.
% 0.22/0.50  363[8:Rew:316.0,362.0] ||  -> equal(sk_c9,sk_c8)**.
% 0.22/0.50  364[8:MRR:363.0,342.0] ||  -> .
% 0.22/0.50  369[6:Rew:359.0,118.5,326.0,118.5,315.0,118.4,359.0,118.3,315.0,118.3] || equal(inverse(u),sk_c9)** equal(inverse(v),sk_c8) equal(inverse(w),sk_c9)** equal(u,sk_c8) equal(multiply(v,sk_c8),sk_c8)** equal(w,sk_c8) -> .
% 0.22/0.50  370[6:Con:369.2] || equal(inverse(u),sk_c9)** equal(inverse(v),sk_c8) equal(u,sk_c8) equal(multiply(v,sk_c8),sk_c8)** -> .
% 0.22/0.50  374[7:Spt:364.0,28.1,132.0] || equal(multiply(sk_c9,sk_c3),sk_c8)** -> .
% 0.22/0.50  375[7:Spt:364.0,28.0] ||  -> equal(inverse(sk_c6),sk_c9)**.
% 0.22/0.50  376[7:Rew:326.0,374.0] || equal(sk_c3,sk_c8)** -> .
% 0.22/0.50  385[6:Rew:331.0,34.1,359.0,34.1,359.0,34.0,315.0,34.0] ||  -> equal(sk_c6,sk_c8) equal(sk_c3,sk_c9)**.
% 0.22/0.50  388[6:Rew:385.1,27.1,326.0,27.1,359.0,27.0,315.0,27.0] ||  -> equal(sk_c6,sk_c8)** equal(sk_c9,sk_c8).
% 0.22/0.50  389[6:Rew:388.1,385.1] ||  -> equal(sk_c6,sk_c8) equal(sk_c3,sk_c8)**.
% 0.22/0.50  390[7:MRR:389.1,376.0] ||  -> equal(sk_c6,sk_c8)**.
% 0.22/0.50  391[7:Rew:390.0,375.0] ||  -> equal(inverse(sk_c8),sk_c9)**.
% 0.22/0.50  392[7:Rew:316.0,391.0] ||  -> equal(sk_c9,sk_c8)**.
% 0.22/0.50  399[7:Rew:392.0,359.0] ||  -> equal(multiply(u,sk_c8),u)**.
% 0.22/0.50  400[7:Rew:392.0,370.0] || equal(inverse(u),sk_c8)** equal(inverse(v),sk_c8) equal(u,sk_c8) equal(multiply(v,sk_c8),sk_c8)** -> .
% 0.22/0.50  412[7:Rew:399.0,400.3] || equal(inverse(u),sk_c8)** equal(inverse(v),sk_c8)** equal(u,sk_c8) equal(v,sk_c8) -> .
% 0.22/0.50  413[7:Con:412.1] || equal(inverse(u),sk_c8)** equal(u,sk_c8) -> .
% 0.22/0.50  457[7:SpL:316.0,413.0] || equal(sk_c8,sk_c8)* equal(sk_c8,sk_c8)* -> .
% 0.22/0.50  459[7:Obv:457.1] ||  -> .
% 0.22/0.50  460[6:Spt:459.0,14.1,126.0] || equal(multiply(sk_c1,sk_c8),sk_c9)** -> .
% 0.22/0.50  461[6:Spt:459.0,14.0] ||  -> equal(inverse(sk_c6),sk_c9)**.
% 0.22/0.50  465[0:Rew:163.0,166.0] ||  -> equal(multiply(u,identity),u)**.
% 0.22/0.50  466[4:Rew:465.0,158.0] ||  -> equal(sk_c1,sk_c7)**.
% 0.22/0.50  467[5:Rew:465.0,172.0] ||  -> equal(inverse(sk_c9),sk_c2)**.
% 0.22/0.50  468[4:Rew:466.0,122.0] ||  -> equal(inverse(sk_c7),sk_c8)**.
% 0.22/0.50  469[4:Rew:466.0,130.0] ||  -> equal(multiply(sk_c8,sk_c7),identity)**.
% 0.22/0.50  470[6:Rew:466.0,460.0] || equal(multiply(sk_c7,sk_c8),sk_c9)** -> .
% 0.22/0.50  473[6:Rew:129.0,470.0] || equal(identity,sk_c9)** -> .
% 0.22/0.50  474[4:Rew:129.0,12.1,466.0,12.1] ||  -> equal(inverse(sk_c5),sk_c8)** equal(identity,sk_c9).
% 0.22/0.50  475[6:MRR:474.1,473.0] ||  -> equal(inverse(sk_c5),sk_c8)**.
% 0.22/0.50  478[4:Rew:129.0,13.1,466.0,13.1] ||  -> equal(multiply(sk_c6,sk_c9),sk_c7)** equal(identity,sk_c9).
% 0.22/0.50  479[6:MRR:478.1,473.0] ||  -> equal(multiply(sk_c6,sk_c9),sk_c7)**.
% 0.22/0.50  480[4:Rew:129.0,11.1,466.0,11.1] ||  -> equal(multiply(sk_c5,sk_c8),sk_c9)** equal(identity,sk_c9).
% 0.22/0.50  481[6:MRR:480.1,473.0] ||  -> equal(multiply(sk_c5,sk_c8),sk_c9)**.
% 0.22/0.50  504[6:SpR:479.0,147.0] ||  -> equal(multiply(inverse(sk_c6),sk_c7),sk_c9)**.
% 0.22/0.50  506[6:Rew:461.0,504.0] ||  -> equal(multiply(sk_c9,sk_c7),sk_c9)**.
% 0.22/0.50  527[6:SpR:481.0,147.0] ||  -> equal(multiply(inverse(sk_c5),sk_c9),sk_c8)**.
% 0.22/0.50  529[6:Rew:106.0,527.0,475.0,527.0] ||  -> equal(sk_c7,sk_c8)**.
% 0.22/0.50  531[6:Rew:529.0,114.0] ||  -> equal(inverse(sk_c8),sk_c8)**.
% 0.22/0.50  538[6:Rew:529.0,146.0] ||  -> equal(multiply(sk_c8,multiply(sk_c8,u)),u)**.
% 0.22/0.50  542[6:Rew:529.0,160.0] ||  -> equal(multiply(sk_c8,multiply(sk_c8,u)),multiply(sk_c9,u))**.
% 0.22/0.50  547[6:Rew:529.0,506.0] ||  -> equal(multiply(sk_c9,sk_c8),sk_c9)**.
% 0.22/0.50  552[6:Rew:538.0,542.0] ||  -> equal(multiply(sk_c9,u),u)**.
% 0.22/0.50  553[6:Rew:552.0,131.0] ||  -> equal(identity,sk_c2)**.
% 0.22/0.50  554[6:Rew:552.0,547.0] ||  -> equal(sk_c9,sk_c8)**.
% 0.22/0.50  561[6:Rew:553.0,473.0] || equal(sk_c2,sk_c9)** -> .
% 0.22/0.50  568[6:Rew:554.0,467.0] ||  -> equal(inverse(sk_c8),sk_c2)**.
% 0.22/0.50  574[6:Rew:554.0,561.0] || equal(sk_c2,sk_c8)** -> .
% 0.22/0.50  575[6:Rew:531.0,568.0] ||  -> equal(sk_c2,sk_c8)**.
% 0.22/0.50  576[6:MRR:575.0,574.0] ||  -> .
% 0.22/0.50  590[5:Spt:576.0,42.1,124.0] || equal(inverse(sk_c2),sk_c9)** -> .
% 0.22/0.50  591[5:Spt:576.0,42.0] ||  -> equal(inverse(sk_c6),sk_c9)**.
% 0.22/0.50  592[5:MRR:40.1,590.0] ||  -> equal(inverse(sk_c5),sk_c8)**.
% 0.22/0.50  594[5:MRR:41.0,590.0] ||  -> equal(multiply(sk_c6,sk_c9),sk_c7)**.
% 0.22/0.50  595[5:MRR:39.0,590.0] ||  -> equal(multiply(sk_c5,sk_c8),sk_c9)**.
% 0.22/0.50  631[5:SpR:595.0,147.0] ||  -> equal(multiply(inverse(sk_c5),sk_c9),sk_c8)**.
% 0.22/0.50  633[5:Rew:106.0,631.0,592.0,631.0] ||  -> equal(sk_c7,sk_c8)**.
% 0.22/0.50  635[5:Rew:633.0,468.0] ||  -> equal(inverse(sk_c8),sk_c8)**.
% 0.22/0.50  637[5:Rew:633.0,469.0] ||  -> equal(multiply(sk_c8,sk_c8),identity)**.
% 0.22/0.50  639[5:Rew:633.0,157.0] ||  -> equal(multiply(sk_c8,sk_c8),sk_c9)**.
% 0.22/0.50  641[5:Rew:633.0,594.0] ||  -> equal(multiply(sk_c6,sk_c9),sk_c8)**.
% 0.22/0.50  650[5:Rew:633.0,118.3] || equal(inverse(u),sk_c9) equal(inverse(v),sk_c8) equal(inverse(w),sk_c9) equal(multiply(u,sk_c9),sk_c8)** equal(multiply(v,sk_c8),sk_c7)** equal(multiply(sk_c9,multiply(w,sk_c9)),sk_c8)** -> .
% 0.22/0.50  652[5:Rew:637.0,639.0] ||  -> equal(identity,sk_c9)**.
% 0.22/0.50  653[5:Rew:652.0,465.0] ||  -> equal(multiply(u,sk_c9),u)**.
% 0.22/0.50  654[5:Rew:652.0,44.0] ||  -> equal(multiply(sk_c9,u),u)**.
% 0.22/0.50  658[5:Rew:653.0,641.0] ||  -> equal(sk_c6,sk_c8)**.
% 0.22/0.50  659[5:Rew:658.0,591.0] ||  -> equal(inverse(sk_c8),sk_c9)**.
% 0.22/0.50  661[5:Rew:635.0,659.0] ||  -> equal(sk_c9,sk_c8)**.
% 0.22/0.50  666[5:Rew:661.0,653.0] ||  -> equal(multiply(u,sk_c8),u)**.
% 0.22/0.50  667[5:Rew:661.0,654.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.22/0.50  686[5:Rew:666.0,650.5,667.0,650.5,661.0,650.5,666.0,650.4,633.0,650.4,666.0,650.3,661.0,650.3,661.0,650.2,661.0,650.0] || equal(inverse(u),sk_c8)** equal(inverse(v),sk_c8)** equal(inverse(w),sk_c8)** equal(u,sk_c8) equal(v,sk_c8) equal(w,sk_c8) -> .
% 0.22/0.50  687[5:Con:686.1] || equal(inverse(u),sk_c8)** equal(u,sk_c8) -> .
% 0.22/0.50  752[5:SpL:635.0,687.0] || equal(sk_c8,sk_c8)* equal(sk_c8,sk_c8)* -> .
% 0.22/0.50  754[5:Obv:752.1] ||  -> .
% 0.22/0.50  755[4:Spt:754.0,21.1,122.0] || equal(inverse(sk_c1),sk_c8)** -> .
% 0.22/0.50  756[4:Spt:754.0,21.0] ||  -> equal(inverse(sk_c6),sk_c9)**.
% 0.22/0.50  761[4:MRR:19.1,755.0] ||  -> equal(inverse(sk_c5),sk_c8)**.
% 0.22/0.50  764[4:MRR:20.0,755.0] ||  -> equal(multiply(sk_c6,sk_c9),sk_c7)**.
% 0.22/0.50  765[4:MRR:18.0,755.0] ||  -> equal(multiply(sk_c5,sk_c8),sk_c9)**.
% 0.22/0.50  791[4:SpR:764.0,147.0] ||  -> equal(multiply(inverse(sk_c6),sk_c7),sk_c9)**.
% 0.22/0.50  793[4:Rew:756.0,791.0] ||  -> equal(multiply(sk_c9,sk_c7),sk_c9)**.
% 0.22/0.51  795[4:SpR:765.0,147.0] ||  -> equal(multiply(inverse(sk_c5),sk_c9),sk_c8)**.
% 0.22/0.51  797[4:Rew:106.0,795.0,761.0,795.0] ||  -> equal(sk_c7,sk_c8)**.
% 0.22/0.51  798[4:Rew:797.0,114.0] ||  -> equal(inverse(sk_c8),sk_c8)**.
% 0.22/0.51  801[4:Rew:797.0,157.0] ||  -> equal(multiply(sk_c8,sk_c8),sk_c9)**.
% 0.22/0.51  802[4:Rew:797.0,129.0] ||  -> equal(multiply(sk_c8,sk_c8),identity)**.
% 0.22/0.51  812[4:Rew:797.0,118.3] || equal(inverse(u),sk_c9) equal(inverse(v),sk_c8) equal(inverse(w),sk_c9) equal(multiply(u,sk_c9),sk_c8)** equal(multiply(v,sk_c8),sk_c7)** equal(multiply(sk_c9,multiply(w,sk_c9)),sk_c8)** -> .
% 0.22/0.51  813[4:Rew:797.0,793.0] ||  -> equal(multiply(sk_c9,sk_c8),sk_c9)**.
% 0.22/0.51  814[4:Rew:801.0,802.0] ||  -> equal(identity,sk_c9)**.
% 0.22/0.51  815[4:Rew:814.0,44.0] ||  -> equal(multiply(sk_c9,u),u)**.
% 0.22/0.51  816[4:Rew:814.0,465.0] ||  -> equal(multiply(u,sk_c9),u)**.
% 0.22/0.51  819[4:Rew:815.0,813.0] ||  -> equal(sk_c9,sk_c8)**.
% 0.22/0.51  827[4:Rew:819.0,815.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.22/0.51  828[4:Rew:819.0,816.0] ||  -> equal(multiply(u,sk_c8),u)**.
% 0.22/0.51  845[4:Rew:828.0,812.5,827.0,812.5,819.0,812.5,828.0,812.4,797.0,812.4,828.0,812.3,819.0,812.3,819.0,812.2,819.0,812.0] || equal(inverse(u),sk_c8)** equal(inverse(v),sk_c8)** equal(inverse(w),sk_c8)** equal(u,sk_c8) equal(v,sk_c8) equal(w,sk_c8) -> .
% 0.22/0.51  846[4:Con:845.1] || equal(inverse(u),sk_c8)** equal(u,sk_c8) -> .
% 0.22/0.51  922[4:SpL:798.0,846.0] || equal(sk_c8,sk_c8)* equal(sk_c8,sk_c8)* -> .
% 0.22/0.51  924[4:Obv:922.1] ||  -> .
% 0.22/0.51  925[3:Spt:924.0,15.0,114.0] || equal(inverse(sk_c8),sk_c7)** -> .
% 0.22/0.51  926[3:Spt:924.0,15.1] ||  -> equal(inverse(sk_c1),sk_c8)**.
% 0.22/0.51  927[3:MRR:36.0,925.0] ||  -> equal(inverse(sk_c2),sk_c9)**.
% 0.22/0.51  928[3:MRR:8.0,925.0] ||  -> equal(multiply(sk_c1,sk_c8),sk_c9)**.
% 0.22/0.51  929[3:MRR:22.0,925.0] ||  -> equal(multiply(sk_c9,sk_c3),sk_c8)**.
% 0.22/0.51  930[3:MRR:29.0,925.0] ||  -> equal(multiply(sk_c2,sk_c9),sk_c3)**.
% 0.22/0.51  931[3:SpR:926.0,147.0] ||  -> equal(multiply(sk_c8,multiply(sk_c1,u)),u)**.
% 0.22/0.51  933[3:SpR:927.0,147.0] ||  -> equal(multiply(sk_c9,multiply(sk_c2,u)),u)**.
% 0.22/0.51  939[3:SpR:928.0,147.0] ||  -> equal(multiply(inverse(sk_c1),sk_c9),sk_c8)**.
% 0.22/0.51  941[3:Rew:106.0,939.0,926.0,939.0] ||  -> equal(sk_c7,sk_c8)**.
% 0.22/0.51  943[3:Rew:941.0,925.0] || equal(inverse(sk_c8),sk_c8)** -> .
% 0.22/0.51  944[3:Rew:941.0,167.0] ||  -> equal(multiply(inverse(sk_c8),sk_c8),sk_c9)**.
% 0.22/0.51  946[3:Rew:45.0,944.0] ||  -> equal(identity,sk_c9)**.
% 0.22/0.51  947[3:Rew:946.0,465.0] ||  -> equal(multiply(u,sk_c9),u)**.
% 0.22/0.51  948[3:Rew:946.0,44.0] ||  -> equal(multiply(sk_c9,u),u)**.
% 0.22/0.51  951[3:Rew:947.0,930.0] ||  -> equal(sk_c2,sk_c3)**.
% 0.22/0.51  952[3:Rew:951.0,927.0] ||  -> equal(inverse(sk_c3),sk_c9)**.
% 0.22/0.51  953[3:Rew:951.0,933.0] ||  -> equal(multiply(sk_c9,multiply(sk_c3,u)),u)**.
% 0.22/0.51  954[3:Rew:948.0,929.0] ||  -> equal(sk_c3,sk_c8)**.
% 0.22/0.51  956[3:Rew:954.0,952.0] ||  -> equal(inverse(sk_c8),sk_c9)**.
% 0.22/0.51  957[3:Rew:956.0,943.0] || equal(sk_c9,sk_c8)** -> .
% 0.22/0.51  958[3:Rew:948.0,953.0,954.0,953.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.22/0.51  959[3:Rew:958.0,931.0] ||  -> equal(multiply(sk_c1,u),u)**.
% 0.22/0.51  960[3:Rew:959.0,928.0] ||  -> equal(sk_c9,sk_c8)**.
% 0.22/0.51  961[3:MRR:960.0,957.0] ||  -> .
% 0.22/0.51  964[2:Spt:961.0,1.1,106.0] || equal(multiply(sk_c8,sk_c9),sk_c7)** -> .
% 0.22/0.51  965[2:Spt:961.0,1.0] ||  -> equal(inverse(sk_c8),sk_c7)**.
% 0.22/0.51  966[2:MRR:7.1,964.0] ||  -> equal(inverse(sk_c6),sk_c9)**.
% 0.22/0.51  967[2:MRR:5.1,964.0] ||  -> equal(inverse(sk_c5),sk_c8)**.
% 0.22/0.51  969[2:MRR:6.1,964.0] ||  -> equal(multiply(sk_c6,sk_c9),sk_c7)**.
% 0.22/0.51  970[2:MRR:4.1,964.0] ||  -> equal(multiply(sk_c5,sk_c8),sk_c9)**.
% 0.22/0.51  972[2:SpR:965.0,147.0] ||  -> equal(multiply(sk_c7,multiply(sk_c8,u)),u)**.
% 0.22/0.51  980[2:SpR:969.0,46.0] ||  -> equal(multiply(sk_c6,multiply(sk_c9,u)),multiply(sk_c7,u))**.
% 0.22/0.51  981[2:SpR:969.0,147.0] ||  -> equal(multiply(inverse(sk_c6),sk_c7),sk_c9)**.
% 0.22/0.51  983[2:Rew:966.0,981.0] ||  -> equal(multiply(sk_c9,sk_c7),sk_c9)**.
% 0.22/0.51  985[2:SpR:970.0,147.0] ||  -> equal(multiply(inverse(sk_c5),sk_c9),sk_c8)**.
% 0.22/0.51  987[2:Rew:967.0,985.0] ||  -> equal(multiply(sk_c8,sk_c9),sk_c8)**.
% 0.22/0.51  988[2:Rew:987.0,964.0] || equal(sk_c7,sk_c8)** -> .
% 0.22/0.51  994[2:SpR:983.0,147.0] ||  -> equal(multiply(inverse(sk_c9),sk_c9),sk_c7)**.
% 0.22/0.51  996[2:Rew:45.0,994.0] ||  -> equal(identity,sk_c7)**.
% 0.22/0.51  997[2:Rew:996.0,44.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.22/0.51  1001[2:Rew:997.0,972.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.22/0.51  1002[2:Rew:997.0,980.0] ||  -> equal(multiply(sk_c6,multiply(sk_c9,u)),u)**.
% 0.22/0.51  1004[2:Rew:1001.0,987.0] ||  -> equal(sk_c9,sk_c8)**.
% 0.22/0.51  1009[2:Rew:1004.0,969.0] ||  -> equal(multiply(sk_c6,sk_c8),sk_c7)**.
% 0.22/0.51  1014[2:Rew:1001.0,1002.0,1004.0,1002.0] ||  -> equal(multiply(sk_c6,u),u)**.
% 0.22/0.51  1015[2:Rew:1014.0,1009.0] ||  -> equal(sk_c7,sk_c8)**.
% 0.22/0.51  1016[2:MRR:1015.0,988.0] ||  -> .
% 0.22/0.51  % SZS output end Refutation
% 0.22/0.51  Formulae used in the proof : prove_this_1 prove_this_4 prove_this_5 prove_this_6 prove_this_7 prove_this_8 prove_this_11 prove_this_12 prove_this_13 prove_this_14 prove_this_15 prove_this_18 prove_this_19 prove_this_20 prove_this_21 prove_this_22 prove_this_27 prove_this_28 prove_this_29 prove_this_34 prove_this_35 prove_this_36 prove_this_39 prove_this_40 prove_this_41 prove_this_42 prove_this_43 left_identity left_inverse associativity
% 0.22/0.51  
%------------------------------------------------------------------------------