TSTP Solution File: GRP315-1 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : GRP315-1 : TPTP v8.1.0. Released v2.5.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n016.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 11:46:49 EDT 2022

% Result   : Unsatisfiable 0.19s 0.46s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12  % Problem  : GRP315-1 : TPTP v8.1.0. Released v2.5.0.
% 0.06/0.12  % Command  : run_spass %d %s
% 0.13/0.33  % Computer : n016.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit : 300
% 0.13/0.33  % WCLimit  : 600
% 0.13/0.33  % DateTime : Mon Jun 13 11:47:59 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.19/0.46  
% 0.19/0.46  SPASS V 3.9 
% 0.19/0.46  SPASS beiseite: Proof found.
% 0.19/0.46  % SZS status Theorem
% 0.19/0.46  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.19/0.46  SPASS derived 801 clauses, backtracked 237 clauses, performed 9 splits and kept 568 clauses.
% 0.19/0.46  SPASS allocated 63547 KBytes.
% 0.19/0.46  SPASS spent	0:00:00.12 on the problem.
% 0.19/0.46  		0:00:00.04 for the input.
% 0.19/0.46  		0:00:00.00 for the FLOTTER CNF translation.
% 0.19/0.46  		0:00:00.01 for inferences.
% 0.19/0.46  		0:00:00.00 for the backtracking.
% 0.19/0.46  		0:00:00.05 for the reduction.
% 0.19/0.46  
% 0.19/0.46  
% 0.19/0.46  Here is a proof with depth 4, length 287 :
% 0.19/0.46  % SZS output start Refutation
% 0.19/0.46  1[0:Inp] ||  -> equal(multiply(sk_c6,sk_c7),sk_c5)**.
% 0.19/0.46  2[0:Inp] ||  -> equal(inverse(sk_c3),sk_c7) equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.19/0.46  3[0:Inp] ||  -> equal(multiply(sk_c3,sk_c6),sk_c7)** equal(multiply(sk_c1,sk_c7),sk_c6).
% 0.19/0.46  4[0:Inp] ||  -> equal(inverse(sk_c4),sk_c6) equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.19/0.46  5[0:Inp] ||  -> equal(multiply(sk_c4,sk_c5),sk_c6)** equal(multiply(sk_c1,sk_c7),sk_c6).
% 0.19/0.46  6[0:Inp] ||  -> equal(inverse(sk_c3),sk_c7)** equal(inverse(sk_c1),sk_c7).
% 0.19/0.46  7[0:Inp] ||  -> equal(inverse(sk_c1),sk_c7) equal(multiply(sk_c3,sk_c6),sk_c7)**.
% 0.19/0.46  8[0:Inp] ||  -> equal(inverse(sk_c4),sk_c6)** equal(inverse(sk_c1),sk_c7).
% 0.19/0.46  9[0:Inp] ||  -> equal(inverse(sk_c1),sk_c7) equal(multiply(sk_c4,sk_c5),sk_c6)**.
% 0.19/0.46  10[0:Inp] ||  -> equal(inverse(sk_c3),sk_c7) equal(multiply(sk_c2,sk_c6),sk_c5)**.
% 0.19/0.46  11[0:Inp] ||  -> equal(multiply(sk_c3,sk_c6),sk_c7) equal(multiply(sk_c2,sk_c6),sk_c5)**.
% 0.19/0.46  12[0:Inp] ||  -> equal(inverse(sk_c4),sk_c6) equal(multiply(sk_c2,sk_c6),sk_c5)**.
% 0.19/0.46  13[0:Inp] ||  -> equal(multiply(sk_c4,sk_c5),sk_c6) equal(multiply(sk_c2,sk_c6),sk_c5)**.
% 0.19/0.46  14[0:Inp] ||  -> equal(inverse(sk_c3),sk_c7) equal(inverse(sk_c2),sk_c6)**.
% 0.19/0.46  15[0:Inp] ||  -> equal(inverse(sk_c2),sk_c6) equal(multiply(sk_c3,sk_c6),sk_c7)**.
% 0.19/0.46  16[0:Inp] ||  -> equal(inverse(sk_c4),sk_c6) equal(inverse(sk_c2),sk_c6)**.
% 0.19/0.46  17[0:Inp] ||  -> equal(inverse(sk_c2),sk_c6) equal(multiply(sk_c4,sk_c5),sk_c6)**.
% 0.19/0.46  18[0:Inp] || equal(multiply(sk_c6,sk_c7),sk_c5)** equal(multiply(u,sk_c7),sk_c6)** equal(inverse(u),sk_c7) equal(multiply(v,sk_c6),sk_c5)** equal(inverse(v),sk_c6) equal(inverse(w),sk_c7) equal(multiply(w,sk_c6),sk_c7)** equal(inverse(x),sk_c6) equal(multiply(x,sk_c5),sk_c6)** -> .
% 0.19/0.46  19[0:Inp] ||  -> equal(multiply(identity,u),u)**.
% 0.19/0.46  20[0:Inp] ||  -> equal(multiply(inverse(u),u),identity)**.
% 0.19/0.46  21[0:Inp] ||  -> equal(multiply(multiply(u,v),w),multiply(u,multiply(v,w)))**.
% 0.19/0.46  22[0:Rew:1.0,18.0] || equal(sk_c5,sk_c5) equal(multiply(u,sk_c7),sk_c6)** equal(inverse(u),sk_c7) equal(multiply(v,sk_c6),sk_c5)** equal(inverse(v),sk_c6) equal(inverse(w),sk_c7) equal(multiply(w,sk_c6),sk_c7)** equal(inverse(x),sk_c6) equal(multiply(x,sk_c5),sk_c6)** -> .
% 0.19/0.46  23[0:Obv:22.0] || equal(inverse(u),sk_c6) equal(inverse(v),sk_c7) equal(inverse(w),sk_c6) equal(inverse(x),sk_c7) equal(multiply(u,sk_c5),sk_c6)**+ equal(multiply(v,sk_c6),sk_c7)** equal(multiply(w,sk_c6),sk_c5)** equal(multiply(x,sk_c7),sk_c6)** -> .
% 0.19/0.46  24[1:Spt:23.3,23.7] || equal(inverse(u),sk_c7) equal(multiply(u,sk_c7),sk_c6)** -> .
% 0.19/0.46  25[2:Spt:14.0] ||  -> equal(inverse(sk_c3),sk_c7)**.
% 0.19/0.46  28[1:SpL:1.0,24.1] || equal(inverse(sk_c6),sk_c7)** equal(sk_c5,sk_c6) -> .
% 0.19/0.46  29[3:Spt:8.0] ||  -> equal(inverse(sk_c4),sk_c6)**.
% 0.19/0.46  31[4:Spt:9.1] ||  -> equal(multiply(sk_c4,sk_c5),sk_c6)**.
% 0.19/0.46  34[1:SpL:19.0,24.1] || equal(inverse(identity),sk_c7)** equal(sk_c7,sk_c6) -> .
% 0.19/0.46  38[2:SpR:25.0,20.0] ||  -> equal(multiply(sk_c7,sk_c3),identity)**.
% 0.19/0.46  39[3:SpR:29.0,20.0] ||  -> equal(multiply(sk_c6,sk_c4),identity)**.
% 0.19/0.46  40[1:SpL:20.0,24.1] || equal(inverse(inverse(sk_c7)),sk_c7)** equal(identity,sk_c6) -> .
% 0.19/0.46  45[4:SpR:31.0,21.0] ||  -> equal(multiply(sk_c4,multiply(sk_c5,u)),multiply(sk_c6,u))**.
% 0.19/0.46  47[0:SpR:20.0,21.0] ||  -> equal(multiply(inverse(u),multiply(u,v)),multiply(identity,v))**.
% 0.19/0.46  49[2:SpR:38.0,21.0] ||  -> equal(multiply(sk_c7,multiply(sk_c3,u)),multiply(identity,u))**.
% 0.19/0.46  51[2:Rew:19.0,49.0] ||  -> equal(multiply(sk_c7,multiply(sk_c3,u)),u)**.
% 0.19/0.46  52[0:Rew:19.0,47.0] ||  -> equal(multiply(inverse(u),multiply(u,v)),v)**.
% 0.19/0.46  66[0:SpR:52.0,52.0] ||  -> equal(multiply(inverse(inverse(u)),v),multiply(u,v))**.
% 0.19/0.46  68[0:SpR:1.0,52.0] ||  -> equal(multiply(inverse(sk_c6),sk_c5),sk_c7)**.
% 0.19/0.46  69[4:SpR:31.0,52.0] ||  -> equal(multiply(inverse(sk_c4),sk_c6),sk_c5)**.
% 0.19/0.46  70[0:SpR:19.0,52.0] ||  -> equal(multiply(inverse(identity),u),u)**.
% 0.19/0.46  71[0:SpR:20.0,52.0] ||  -> equal(multiply(inverse(inverse(u)),identity),u)**.
% 0.19/0.46  74[2:SpR:51.0,52.0] ||  -> equal(multiply(inverse(sk_c7),u),multiply(sk_c3,u))**.
% 0.19/0.46  77[3:SpR:39.0,52.0] ||  -> equal(multiply(inverse(sk_c6),identity),sk_c4)**.
% 0.19/0.46  80[4:Rew:29.0,69.0] ||  -> equal(multiply(sk_c6,sk_c6),sk_c5)**.
% 0.19/0.46  84[0:Rew:66.0,71.0] ||  -> equal(multiply(u,identity),u)**.
% 0.19/0.46  85[3:Rew:84.0,77.0] ||  -> equal(inverse(sk_c6),sk_c4)**.
% 0.19/0.46  87[3:Rew:85.0,68.0] ||  -> equal(multiply(sk_c4,sk_c5),sk_c7)**.
% 0.19/0.46  88[4:Rew:31.0,87.0] ||  -> equal(sk_c7,sk_c6)**.
% 0.19/0.46  93[4:Rew:88.0,38.0] ||  -> equal(multiply(sk_c6,sk_c3),identity)**.
% 0.19/0.46  98[4:Rew:88.0,74.0] ||  -> equal(multiply(inverse(sk_c6),u),multiply(sk_c3,u))**.
% 0.19/0.46  99[4:Rew:88.0,40.0] || equal(inverse(inverse(sk_c6)),sk_c6)** equal(identity,sk_c6) -> .
% 0.19/0.46  111[4:Rew:85.0,98.0] ||  -> equal(multiply(sk_c4,u),multiply(sk_c3,u))**.
% 0.19/0.46  118[4:Rew:85.0,99.0] || equal(inverse(sk_c4),sk_c6)** equal(identity,sk_c6) -> .
% 0.19/0.46  119[4:Rew:29.0,118.0] || equal(sk_c6,sk_c6) equal(identity,sk_c6)** -> .
% 0.19/0.46  120[4:Obv:119.0] || equal(identity,sk_c6)** -> .
% 0.19/0.46  126[3:SpR:85.0,20.0] ||  -> equal(multiply(sk_c4,sk_c6),identity)**.
% 0.19/0.46  127[3:SpR:85.0,52.0] ||  -> equal(multiply(sk_c4,multiply(sk_c6,u)),u)**.
% 0.19/0.46  159[4:Rew:111.0,127.0] ||  -> equal(multiply(sk_c3,multiply(sk_c6,u)),u)**.
% 0.19/0.46  160[4:Rew:111.0,126.0] ||  -> equal(multiply(sk_c3,sk_c6),identity)**.
% 0.19/0.46  163[4:Rew:88.0,7.1,88.0,7.0] ||  -> equal(inverse(sk_c1),sk_c6) equal(multiply(sk_c3,sk_c6),sk_c6)**.
% 0.19/0.46  164[4:Rew:160.0,163.1] ||  -> equal(inverse(sk_c1),sk_c6)** equal(identity,sk_c6).
% 0.19/0.46  165[4:MRR:164.1,120.0] ||  -> equal(inverse(sk_c1),sk_c6)**.
% 0.19/0.46  166[4:Rew:111.0,45.0] ||  -> equal(multiply(sk_c3,multiply(sk_c5,u)),multiply(sk_c6,u))**.
% 0.19/0.46  170[4:Rew:88.0,3.1,88.0,3.0] ||  -> equal(multiply(sk_c3,sk_c6),sk_c6)** equal(multiply(sk_c1,sk_c6),sk_c6).
% 0.19/0.46  171[4:Rew:160.0,170.0] ||  -> equal(identity,sk_c6) equal(multiply(sk_c1,sk_c6),sk_c6)**.
% 0.19/0.46  172[4:MRR:171.0,120.0] ||  -> equal(multiply(sk_c1,sk_c6),sk_c6)**.
% 0.19/0.46  210[4:SpR:172.0,52.0] ||  -> equal(multiply(inverse(sk_c1),sk_c6),sk_c6)**.
% 0.19/0.46  212[4:Rew:80.0,210.0,165.0,210.0] ||  -> equal(sk_c5,sk_c6)**.
% 0.19/0.46  217[4:Rew:212.0,166.0] ||  -> equal(multiply(sk_c3,multiply(sk_c6,u)),multiply(sk_c6,u))**.
% 0.19/0.46  224[4:Rew:159.0,217.0] ||  -> equal(multiply(sk_c6,u),u)**.
% 0.19/0.46  225[4:Rew:224.0,93.0] ||  -> equal(identity,sk_c3)**.
% 0.19/0.46  227[4:Rew:224.0,159.0] ||  -> equal(multiply(sk_c3,u),u)**.
% 0.19/0.46  232[4:Rew:225.0,120.0] || equal(sk_c3,sk_c6)** -> .
% 0.19/0.46  238[4:Rew:225.0,160.0] ||  -> equal(multiply(sk_c3,sk_c6),sk_c3)**.
% 0.19/0.46  246[4:Rew:227.0,238.0] ||  -> equal(sk_c3,sk_c6)**.
% 0.19/0.46  247[4:MRR:246.0,232.0] ||  -> .
% 0.19/0.46  249[4:Spt:247.0,9.1,31.0] || equal(multiply(sk_c4,sk_c5),sk_c6)** -> .
% 0.19/0.46  250[4:Spt:247.0,9.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.46  251[4:Rew:87.0,249.0] || equal(sk_c7,sk_c6)** -> .
% 0.19/0.46  252[3:Rew:87.0,17.1] ||  -> equal(inverse(sk_c2),sk_c6)** equal(sk_c7,sk_c6).
% 0.19/0.46  253[4:MRR:252.1,251.0] ||  -> equal(inverse(sk_c2),sk_c6)**.
% 0.19/0.46  255[3:Rew:87.0,13.0] ||  -> equal(sk_c7,sk_c6) equal(multiply(sk_c2,sk_c6),sk_c5)**.
% 0.19/0.46  256[4:MRR:255.0,251.0] ||  -> equal(multiply(sk_c2,sk_c6),sk_c5)**.
% 0.19/0.46  257[3:Rew:87.0,5.0] ||  -> equal(sk_c7,sk_c6) equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.19/0.46  258[4:MRR:257.0,251.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.19/0.46  267[4:SpR:253.0,52.0] ||  -> equal(multiply(sk_c6,multiply(sk_c2,u)),u)**.
% 0.19/0.46  288[4:SpR:256.0,52.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c6)**.
% 0.19/0.46  290[4:Rew:253.0,288.0] ||  -> equal(multiply(sk_c6,sk_c5),sk_c6)**.
% 0.19/0.46  297[4:SpR:258.0,52.0] ||  -> equal(multiply(inverse(sk_c1),sk_c6),sk_c7)**.
% 0.19/0.46  299[4:Rew:250.0,297.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c7)**.
% 0.19/0.46  301[4:SpR:290.0,52.0] ||  -> equal(multiply(inverse(sk_c6),sk_c6),sk_c5)**.
% 0.19/0.46  303[4:Rew:126.0,301.0,85.0,301.0] ||  -> equal(identity,sk_c5)**.
% 0.19/0.46  305[4:Rew:303.0,126.0] ||  -> equal(multiply(sk_c4,sk_c6),sk_c5)**.
% 0.19/0.46  307[4:Rew:303.0,84.0] ||  -> equal(multiply(u,sk_c5),u)**.
% 0.19/0.46  310[4:Rew:303.0,70.0] ||  -> equal(multiply(inverse(sk_c5),u),u)**.
% 0.19/0.46  312[4:Rew:307.0,87.0] ||  -> equal(sk_c4,sk_c7)**.
% 0.19/0.46  313[4:Rew:312.0,29.0] ||  -> equal(inverse(sk_c7),sk_c6)**.
% 0.19/0.46  319[4:Rew:312.0,305.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c5)**.
% 0.19/0.46  324[4:Rew:299.0,319.0] ||  -> equal(sk_c5,sk_c7)**.
% 0.19/0.46  326[4:Rew:324.0,256.0] ||  -> equal(multiply(sk_c2,sk_c6),sk_c7)**.
% 0.19/0.46  349[4:Rew:313.0,310.0,324.0,310.0] ||  -> equal(multiply(sk_c6,u),u)**.
% 0.19/0.46  350[4:Rew:349.0,267.0] ||  -> equal(multiply(sk_c2,u),u)**.
% 0.19/0.46  351[4:Rew:350.0,326.0] ||  -> equal(sk_c7,sk_c6)**.
% 0.19/0.46  352[4:MRR:351.0,251.0] ||  -> .
% 0.19/0.46  366[3:Spt:352.0,8.0,29.0] || equal(inverse(sk_c4),sk_c6)** -> .
% 0.19/0.46  367[3:Spt:352.0,8.1] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.46  368[3:MRR:16.0,366.0] ||  -> equal(inverse(sk_c2),sk_c6)**.
% 0.19/0.46  369[3:MRR:12.0,366.0] ||  -> equal(multiply(sk_c2,sk_c6),sk_c5)**.
% 0.19/0.46  370[3:MRR:4.0,366.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.19/0.46  386[3:SpR:369.0,52.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c6)**.
% 0.19/0.46  388[3:Rew:368.0,386.0] ||  -> equal(multiply(sk_c6,sk_c5),sk_c6)**.
% 0.19/0.46  390[3:SpR:370.0,52.0] ||  -> equal(multiply(inverse(sk_c1),sk_c6),sk_c7)**.
% 0.19/0.46  392[3:Rew:367.0,390.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c7)**.
% 0.19/0.46  394[3:SpR:388.0,52.0] ||  -> equal(multiply(inverse(sk_c6),sk_c6),sk_c5)**.
% 0.19/0.46  396[3:Rew:20.0,394.0] ||  -> equal(identity,sk_c5)**.
% 0.19/0.46  397[3:Rew:396.0,38.0] ||  -> equal(multiply(sk_c7,sk_c3),sk_c5)**.
% 0.19/0.46  399[3:Rew:396.0,84.0] ||  -> equal(multiply(u,sk_c5),u)**.
% 0.19/0.46  401[3:Rew:396.0,34.0] || equal(inverse(sk_c5),sk_c7)** equal(sk_c7,sk_c6) -> .
% 0.19/0.46  406[3:Rew:399.0,68.0] ||  -> equal(inverse(sk_c6),sk_c7)**.
% 0.19/0.46  411[3:SpR:406.0,52.0] ||  -> equal(multiply(sk_c7,multiply(sk_c6,u)),u)**.
% 0.19/0.46  416[3:SpR:392.0,21.0] ||  -> equal(multiply(sk_c7,multiply(sk_c6,u)),multiply(sk_c7,u))**.
% 0.19/0.46  421[3:Rew:411.0,416.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.46  422[3:Rew:421.0,392.0] ||  -> equal(sk_c7,sk_c6)**.
% 0.19/0.46  424[3:Rew:421.0,397.0] ||  -> equal(sk_c3,sk_c5)**.
% 0.19/0.46  430[3:Rew:422.0,25.0] ||  -> equal(inverse(sk_c3),sk_c6)**.
% 0.19/0.46  437[3:Rew:422.0,401.0] || equal(inverse(sk_c5),sk_c6)** equal(sk_c7,sk_c6) -> .
% 0.19/0.46  439[3:Rew:424.0,430.0] ||  -> equal(inverse(sk_c5),sk_c6)**.
% 0.19/0.46  450[3:Rew:422.0,437.1,439.0,437.0] || equal(sk_c6,sk_c6)* equal(sk_c6,sk_c6)* -> .
% 0.19/0.46  451[3:Obv:450.1] ||  -> .
% 0.19/0.46  454[2:Spt:451.0,14.0,25.0] || equal(inverse(sk_c3),sk_c7)** -> .
% 0.19/0.46  455[2:Spt:451.0,14.1] ||  -> equal(inverse(sk_c2),sk_c6)**.
% 0.19/0.46  456[2:MRR:6.0,454.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.46  457[2:MRR:10.0,454.0] ||  -> equal(multiply(sk_c2,sk_c6),sk_c5)**.
% 0.19/0.46  458[2:MRR:2.0,454.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.19/0.46  459[2:SpR:455.0,52.0] ||  -> equal(multiply(sk_c6,multiply(sk_c2,u)),u)**.
% 0.19/0.46  467[2:SpR:457.0,52.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c6)**.
% 0.19/0.46  469[2:Rew:455.0,467.0] ||  -> equal(multiply(sk_c6,sk_c5),sk_c6)**.
% 0.19/0.46  471[2:SpR:458.0,52.0] ||  -> equal(multiply(inverse(sk_c1),sk_c6),sk_c7)**.
% 0.19/0.46  473[2:Rew:456.0,471.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c7)**.
% 0.19/0.46  475[2:SpR:469.0,52.0] ||  -> equal(multiply(inverse(sk_c6),sk_c6),sk_c5)**.
% 0.19/0.46  477[2:Rew:20.0,475.0] ||  -> equal(identity,sk_c5)**.
% 0.19/0.46  478[2:Rew:477.0,84.0] ||  -> equal(multiply(u,sk_c5),u)**.
% 0.19/0.46  484[2:Rew:478.0,68.0] ||  -> equal(inverse(sk_c6),sk_c7)**.
% 0.19/0.46  485[2:Rew:484.0,28.0] || equal(sk_c7,sk_c7) equal(sk_c5,sk_c6)** -> .
% 0.19/0.46  488[2:Obv:485.0] || equal(sk_c5,sk_c6)** -> .
% 0.19/0.46  491[2:SpR:484.0,52.0] ||  -> equal(multiply(sk_c7,multiply(sk_c6,u)),u)**.
% 0.19/0.46  496[2:SpR:473.0,21.0] ||  -> equal(multiply(sk_c7,multiply(sk_c6,u)),multiply(sk_c7,u))**.
% 0.19/0.46  501[2:Rew:491.0,496.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.46  503[2:Rew:501.0,491.0] ||  -> equal(multiply(sk_c6,u),u)**.
% 0.19/0.46  516[2:Rew:503.0,459.0] ||  -> equal(multiply(sk_c2,u),u)**.
% 0.19/0.46  520[2:Rew:516.0,457.0] ||  -> equal(sk_c5,sk_c6)**.
% 0.19/0.46  521[2:MRR:520.0,488.0] ||  -> .
% 0.19/0.46  527[1:Spt:521.0,23.0,23.1,23.2,23.4,23.5,23.6] || equal(inverse(u),sk_c6) equal(inverse(v),sk_c7) equal(inverse(w),sk_c6) equal(multiply(u,sk_c5),sk_c6)**+ equal(multiply(v,sk_c6),sk_c7)** equal(multiply(w,sk_c6),sk_c5)** -> .
% 0.19/0.46  529[2:Spt:16.0] ||  -> equal(inverse(sk_c4),sk_c6)**.
% 0.19/0.46  530[2:SpR:529.0,52.0] ||  -> equal(multiply(sk_c6,multiply(sk_c4,u)),u)**.
% 0.19/0.46  532[3:Spt:6.0] ||  -> equal(inverse(sk_c3),sk_c7)**.
% 0.19/0.46  538[4:Spt:15.1] ||  -> equal(multiply(sk_c3,sk_c6),sk_c7)**.
% 0.19/0.46  540[4:SpR:538.0,52.0] ||  -> equal(multiply(inverse(sk_c3),sk_c7),sk_c6)**.
% 0.19/0.46  542[4:Rew:532.0,540.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c6)**.
% 0.19/0.46  543[5:Spt:9.1] ||  -> equal(multiply(sk_c4,sk_c5),sk_c6)**.
% 0.19/0.46  545[5:SpR:543.0,52.0] ||  -> equal(multiply(inverse(sk_c4),sk_c6),sk_c5)**.
% 0.19/0.46  547[5:SpL:543.0,527.3] || equal(inverse(sk_c4),sk_c6) equal(inverse(u),sk_c7) equal(inverse(v),sk_c6) equal(sk_c6,sk_c6) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c6),sk_c5)** -> .
% 0.19/0.46  548[5:Rew:529.0,545.0] ||  -> equal(multiply(sk_c6,sk_c6),sk_c5)**.
% 0.19/0.46  549[5:Obv:547.3] || equal(inverse(sk_c4),sk_c6) equal(inverse(u),sk_c7) equal(inverse(v),sk_c6) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c6),sk_c5)** -> .
% 0.19/0.46  550[5:Rew:529.0,549.0] || equal(sk_c6,sk_c6) equal(inverse(u),sk_c7) equal(inverse(v),sk_c6) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c6),sk_c5)** -> .
% 0.19/0.46  551[5:Obv:550.0] || equal(inverse(u),sk_c7) equal(inverse(v),sk_c6) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c6),sk_c5)** -> .
% 0.19/0.46  559[5:SpR:548.0,52.0] ||  -> equal(multiply(inverse(sk_c6),sk_c5),sk_c6)**.
% 0.19/0.46  561[5:Rew:68.0,559.0] ||  -> equal(sk_c7,sk_c6)**.
% 0.19/0.46  565[5:Rew:561.0,542.0] ||  -> equal(multiply(sk_c6,sk_c6),sk_c6)**.
% 0.19/0.46  566[5:Rew:561.0,68.0] ||  -> equal(multiply(inverse(sk_c6),sk_c5),sk_c6)**.
% 0.19/0.46  570[5:Rew:561.0,551.0] || equal(inverse(u),sk_c6) equal(inverse(v),sk_c6) equal(multiply(u,sk_c6),sk_c7)** equal(multiply(v,sk_c6),sk_c5)** -> .
% 0.19/0.46  573[5:Rew:548.0,565.0] ||  -> equal(sk_c5,sk_c6)**.
% 0.19/0.46  574[5:Rew:573.0,543.0] ||  -> equal(multiply(sk_c4,sk_c6),sk_c6)**.
% 0.19/0.46  577[5:Rew:20.0,566.0,573.0,566.0] ||  -> equal(identity,sk_c6)**.
% 0.19/0.46  579[5:Rew:577.0,84.0] ||  -> equal(multiply(u,sk_c6),u)**.
% 0.19/0.46  583[5:Rew:579.0,574.0] ||  -> equal(sk_c4,sk_c6)**.
% 0.19/0.46  585[5:Rew:583.0,529.0] ||  -> equal(inverse(sk_c6),sk_c6)**.
% 0.19/0.46  595[5:Rew:579.0,570.3,573.0,570.3,579.0,570.2,561.0,570.2] || equal(inverse(u),sk_c6)** equal(inverse(v),sk_c6)** equal(u,sk_c6) equal(v,sk_c6) -> .
% 0.19/0.46  596[5:Con:595.1] || equal(inverse(u),sk_c6)** equal(u,sk_c6) -> .
% 0.19/0.46  654[5:SpL:585.0,596.0] || equal(sk_c6,sk_c6)* equal(sk_c6,sk_c6)* -> .
% 0.19/0.46  656[5:Obv:654.1] ||  -> .
% 0.19/0.46  657[5:Spt:656.0,9.1,543.0] || equal(multiply(sk_c4,sk_c5),sk_c6)** -> .
% 0.19/0.46  658[5:Spt:656.0,9.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.46  659[5:MRR:17.1,657.0] ||  -> equal(inverse(sk_c2),sk_c6)**.
% 0.19/0.46  660[5:MRR:13.0,657.0] ||  -> equal(multiply(sk_c2,sk_c6),sk_c5)**.
% 0.19/0.46  661[5:MRR:5.0,657.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.19/0.46  681[5:SpR:660.0,52.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c6)**.
% 0.19/0.46  683[5:Rew:659.0,681.0] ||  -> equal(multiply(sk_c6,sk_c5),sk_c6)**.
% 0.19/0.46  685[5:SpR:661.0,52.0] ||  -> equal(multiply(inverse(sk_c1),sk_c6),sk_c7)**.
% 0.19/0.46  687[5:Rew:658.0,685.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c7)**.
% 0.19/0.46  689[5:SpR:683.0,52.0] ||  -> equal(multiply(inverse(sk_c6),sk_c6),sk_c5)**.
% 0.19/0.46  691[5:Rew:20.0,689.0] ||  -> equal(identity,sk_c5)**.
% 0.19/0.46  692[5:Rew:691.0,19.0] ||  -> equal(multiply(sk_c5,u),u)**.
% 0.19/0.46  693[5:Rew:691.0,84.0] ||  -> equal(multiply(u,sk_c5),u)**.
% 0.19/0.46  694[5:Rew:691.0,20.0] ||  -> equal(multiply(inverse(u),u),sk_c5)**.
% 0.19/0.46  699[5:Rew:693.0,657.0] || equal(sk_c4,sk_c6)** -> .
% 0.19/0.46  707[5:SpR:687.0,52.0] ||  -> equal(multiply(inverse(sk_c7),sk_c7),sk_c6)**.
% 0.19/0.46  709[5:Rew:694.0,707.0] ||  -> equal(sk_c5,sk_c6)**.
% 0.19/0.46  713[5:Rew:709.0,692.0] ||  -> equal(multiply(sk_c6,u),u)**.
% 0.19/0.46  714[5:Rew:709.0,693.0] ||  -> equal(multiply(u,sk_c6),u)**.
% 0.19/0.46  721[5:Rew:713.0,530.0] ||  -> equal(multiply(sk_c4,u),u)**.
% 0.19/0.46  778[5:SpR:721.0,714.0] ||  -> equal(sk_c4,sk_c6)**.
% 0.19/0.46  780[5:MRR:778.0,699.0] ||  -> .
% 0.19/0.46  782[4:Spt:780.0,15.1,538.0] || equal(multiply(sk_c3,sk_c6),sk_c7)** -> .
% 0.19/0.46  783[4:Spt:780.0,15.0] ||  -> equal(inverse(sk_c2),sk_c6)**.
% 0.19/0.46  784[4:MRR:7.1,782.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.46  785[4:MRR:11.0,782.0] ||  -> equal(multiply(sk_c2,sk_c6),sk_c5)**.
% 0.19/0.46  786[4:MRR:3.0,782.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.19/0.46  797[4:SpR:785.0,52.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c6)**.
% 0.19/0.46  799[4:Rew:783.0,797.0] ||  -> equal(multiply(sk_c6,sk_c5),sk_c6)**.
% 0.19/0.46  801[4:SpR:786.0,52.0] ||  -> equal(multiply(inverse(sk_c1),sk_c6),sk_c7)**.
% 0.19/0.46  803[4:Rew:784.0,801.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c7)**.
% 0.19/0.46  805[4:SpR:799.0,52.0] ||  -> equal(multiply(inverse(sk_c6),sk_c6),sk_c5)**.
% 0.19/0.47  807[4:Rew:20.0,805.0] ||  -> equal(identity,sk_c5)**.
% 0.19/0.47  808[4:Rew:807.0,84.0] ||  -> equal(multiply(u,sk_c5),u)**.
% 0.19/0.47  809[4:Rew:807.0,19.0] ||  -> equal(multiply(sk_c5,u),u)**.
% 0.19/0.47  811[4:Rew:807.0,20.0] ||  -> equal(multiply(inverse(u),u),sk_c5)**.
% 0.19/0.47  825[4:SpR:803.0,52.0] ||  -> equal(multiply(inverse(sk_c7),sk_c7),sk_c6)**.
% 0.19/0.47  827[4:Rew:811.0,825.0] ||  -> equal(sk_c5,sk_c6)**.
% 0.19/0.47  828[4:Rew:827.0,1.0] ||  -> equal(multiply(sk_c6,sk_c7),sk_c6)**.
% 0.19/0.47  831[4:Rew:827.0,809.0] ||  -> equal(multiply(sk_c6,u),u)**.
% 0.19/0.47  832[4:Rew:827.0,808.0] ||  -> equal(multiply(u,sk_c6),u)**.
% 0.19/0.47  834[4:Rew:827.0,811.0] ||  -> equal(multiply(inverse(u),u),sk_c6)**.
% 0.19/0.47  837[4:Rew:831.0,828.0] ||  -> equal(sk_c7,sk_c6)**.
% 0.19/0.47  843[4:Rew:837.0,532.0] ||  -> equal(inverse(sk_c3),sk_c6)**.
% 0.19/0.47  848[4:Rew:837.0,782.0] || equal(multiply(sk_c3,sk_c6),sk_c6)** -> .
% 0.19/0.47  860[4:Rew:832.0,848.0] || equal(sk_c3,sk_c6)** -> .
% 0.19/0.47  903[4:SpR:843.0,834.0] ||  -> equal(multiply(sk_c6,sk_c3),sk_c6)**.
% 0.19/0.47  905[4:Rew:831.0,903.0] ||  -> equal(sk_c3,sk_c6)**.
% 0.19/0.47  906[4:MRR:905.0,860.0] ||  -> .
% 0.19/0.47  910[3:Spt:906.0,6.0,532.0] || equal(inverse(sk_c3),sk_c7)** -> .
% 0.19/0.47  911[3:Spt:906.0,6.1] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.47  912[3:MRR:14.0,910.0] ||  -> equal(inverse(sk_c2),sk_c6)**.
% 0.19/0.47  913[3:MRR:10.0,910.0] ||  -> equal(multiply(sk_c2,sk_c6),sk_c5)**.
% 0.19/0.47  914[3:MRR:2.0,910.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.19/0.47  925[3:SpR:913.0,52.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c6)**.
% 0.19/0.47  927[3:Rew:912.0,925.0] ||  -> equal(multiply(sk_c6,sk_c5),sk_c6)**.
% 0.19/0.47  929[3:SpR:914.0,52.0] ||  -> equal(multiply(inverse(sk_c1),sk_c6),sk_c7)**.
% 0.19/0.47  931[3:Rew:911.0,929.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c7)**.
% 0.19/0.47  933[3:SpR:927.0,52.0] ||  -> equal(multiply(inverse(sk_c6),sk_c6),sk_c5)**.
% 0.19/0.47  935[3:Rew:20.0,933.0] ||  -> equal(identity,sk_c5)**.
% 0.19/0.47  936[3:Rew:935.0,19.0] ||  -> equal(multiply(sk_c5,u),u)**.
% 0.19/0.47  937[3:Rew:935.0,84.0] ||  -> equal(multiply(u,sk_c5),u)**.
% 0.19/0.47  938[3:Rew:935.0,20.0] ||  -> equal(multiply(inverse(u),u),sk_c5)**.
% 0.19/0.47  943[3:Rew:937.0,68.0] ||  -> equal(inverse(sk_c6),sk_c7)**.
% 0.19/0.47  944[3:Rew:937.0,527.3] || equal(inverse(u),sk_c6)** equal(inverse(v),sk_c7) equal(inverse(w),sk_c6) equal(u,sk_c6) equal(multiply(v,sk_c6),sk_c7)** equal(multiply(w,sk_c6),sk_c5)** -> .
% 0.19/0.47  953[3:SpR:931.0,52.0] ||  -> equal(multiply(inverse(sk_c7),sk_c7),sk_c6)**.
% 0.19/0.47  955[3:Rew:938.0,953.0] ||  -> equal(sk_c5,sk_c6)**.
% 0.19/0.47  956[3:Rew:955.0,1.0] ||  -> equal(multiply(sk_c6,sk_c7),sk_c6)**.
% 0.19/0.47  959[3:Rew:955.0,936.0] ||  -> equal(multiply(sk_c6,u),u)**.
% 0.19/0.47  960[3:Rew:955.0,937.0] ||  -> equal(multiply(u,sk_c6),u)**.
% 0.19/0.47  963[3:Rew:955.0,944.5] || equal(inverse(u),sk_c6)** equal(inverse(v),sk_c7) equal(inverse(w),sk_c6) equal(u,sk_c6) equal(multiply(v,sk_c6),sk_c7)** equal(multiply(w,sk_c6),sk_c6)** -> .
% 0.19/0.47  965[3:Rew:959.0,956.0] ||  -> equal(sk_c7,sk_c6)**.
% 0.19/0.47  974[3:Rew:965.0,943.0] ||  -> equal(inverse(sk_c6),sk_c6)**.
% 0.19/0.47  989[3:Rew:960.0,963.5,960.0,963.4,965.0,963.4,965.0,963.1] || equal(inverse(u),sk_c6)** equal(inverse(v),sk_c6)** equal(inverse(w),sk_c6)** equal(u,sk_c6) equal(v,sk_c6) equal(w,sk_c6) -> .
% 0.19/0.47  990[3:Con:989.1] || equal(inverse(u),sk_c6)** equal(u,sk_c6) -> .
% 0.19/0.47  1022[3:SpL:974.0,990.0] || equal(sk_c6,sk_c6)* equal(sk_c6,sk_c6)* -> .
% 0.19/0.47  1023[3:Obv:1022.1] ||  -> .
% 0.19/0.47  1024[2:Spt:1023.0,16.0,529.0] || equal(inverse(sk_c4),sk_c6)** -> .
% 0.19/0.47  1025[2:Spt:1023.0,16.1] ||  -> equal(inverse(sk_c2),sk_c6)**.
% 0.19/0.47  1026[2:MRR:8.0,1024.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.47  1027[2:MRR:12.0,1024.0] ||  -> equal(multiply(sk_c2,sk_c6),sk_c5)**.
% 0.19/0.47  1028[2:MRR:4.0,1024.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c6)**.
% 0.19/0.47  1037[2:SpR:1027.0,52.0] ||  -> equal(multiply(inverse(sk_c2),sk_c5),sk_c6)**.
% 0.19/0.47  1039[2:Rew:1025.0,1037.0] ||  -> equal(multiply(sk_c6,sk_c5),sk_c6)**.
% 0.19/0.47  1041[2:SpR:1028.0,52.0] ||  -> equal(multiply(inverse(sk_c1),sk_c6),sk_c7)**.
% 0.19/0.47  1043[2:Rew:1026.0,1041.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c7)**.
% 0.19/0.47  1045[2:SpR:1039.0,52.0] ||  -> equal(multiply(inverse(sk_c6),sk_c6),sk_c5)**.
% 0.19/0.47  1047[2:Rew:20.0,1045.0] ||  -> equal(identity,sk_c5)**.
% 0.19/0.47  1048[2:Rew:1047.0,84.0] ||  -> equal(multiply(u,sk_c5),u)**.
% 0.19/0.47  1049[2:Rew:1047.0,19.0] ||  -> equal(multiply(sk_c5,u),u)**.
% 0.19/0.47  1051[2:Rew:1047.0,20.0] ||  -> equal(multiply(inverse(u),u),sk_c5)**.
% 0.19/0.47  1053[2:Rew:1048.0,68.0] ||  -> equal(inverse(sk_c6),sk_c7)**.
% 0.19/0.47  1054[2:Rew:1048.0,527.3] || equal(inverse(u),sk_c6)** equal(inverse(v),sk_c7) equal(inverse(w),sk_c6) equal(u,sk_c6) equal(multiply(v,sk_c6),sk_c7)** equal(multiply(w,sk_c6),sk_c5)** -> .
% 0.19/0.47  1065[2:SpR:1043.0,52.0] ||  -> equal(multiply(inverse(sk_c7),sk_c7),sk_c6)**.
% 0.19/0.47  1067[2:Rew:1051.0,1065.0] ||  -> equal(sk_c5,sk_c6)**.
% 0.19/0.47  1068[2:Rew:1067.0,1.0] ||  -> equal(multiply(sk_c6,sk_c7),sk_c6)**.
% 0.19/0.47  1070[2:Rew:1067.0,1049.0] ||  -> equal(multiply(sk_c6,u),u)**.
% 0.19/0.47  1072[2:Rew:1067.0,1048.0] ||  -> equal(multiply(u,sk_c6),u)**.
% 0.19/0.47  1075[2:Rew:1067.0,1054.5] || equal(inverse(u),sk_c6)** equal(inverse(v),sk_c7) equal(inverse(w),sk_c6) equal(u,sk_c6) equal(multiply(v,sk_c6),sk_c7)** equal(multiply(w,sk_c6),sk_c6)** -> .
% 0.19/0.47  1076[2:Rew:1070.0,1068.0] ||  -> equal(sk_c7,sk_c6)**.
% 0.19/0.47  1084[2:Rew:1076.0,1053.0] ||  -> equal(inverse(sk_c6),sk_c6)**.
% 0.19/0.47  1099[2:Rew:1072.0,1075.5,1072.0,1075.4,1076.0,1075.4,1076.0,1075.1] || equal(inverse(u),sk_c6)** equal(inverse(v),sk_c6)** equal(inverse(w),sk_c6)** equal(u,sk_c6) equal(v,sk_c6) equal(w,sk_c6) -> .
% 0.19/0.47  1100[2:Con:1099.1] || equal(inverse(u),sk_c6)** equal(u,sk_c6) -> .
% 0.19/0.47  1141[2:SpL:1084.0,1100.0] || equal(sk_c6,sk_c6)* equal(sk_c6,sk_c6)* -> .
% 0.19/0.47  1143[2:Obv:1141.1] ||  -> .
% 0.19/0.47  % SZS output end Refutation
% 0.19/0.47  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_15 prove_this_16 prove_this_17 prove_this_18 left_identity left_inverse associativity
% 0.19/0.47  
%------------------------------------------------------------------------------