TSTP Solution File: SWC018+1 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : SWC018+1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n014.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 : Tue Jul 19 22:01:07 EDT 2022

% Result   : Theorem 16.65s 16.82s
% Output   : Refutation 18.46s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.13  % Problem  : SWC018+1 : TPTP v8.1.0. Released v2.4.0.
% 0.08/0.13  % Command  : run_spass %d %s
% 0.13/0.35  % Computer : n014.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % WCLimit  : 600
% 0.13/0.35  % DateTime : Sun Jun 12 18:27:22 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 16.65/16.82  
% 16.65/16.82  SPASS V 3.9 
% 16.65/16.82  SPASS beiseite: Proof found.
% 16.65/16.82  % SZS status Theorem
% 16.65/16.82  Problem: /export/starexec/sandbox2/benchmark/theBenchmark.p 
% 16.65/16.82  SPASS derived 14310 clauses, backtracked 6885 clauses, performed 303 splits and kept 10638 clauses.
% 16.65/16.82  SPASS allocated 116966 KBytes.
% 16.65/16.82  SPASS spent	0:0:16.44 on the problem.
% 16.65/16.82  		0:00:00.04 for the input.
% 16.65/16.82  		0:00:00.07 for the FLOTTER CNF translation.
% 16.65/16.82  		0:00:00.23 for inferences.
% 16.65/16.82  		0:00:00.30 for the backtracking.
% 16.65/16.82  		0:0:15.50 for the reduction.
% 16.65/16.82  
% 16.65/16.82  
% 16.65/16.82  Here is a proof with depth 3, length 366 :
% 16.65/16.82  % SZS output start Refutation
% 16.65/16.82  1[0:Inp] ||  -> ssList(skc7)*.
% 16.65/16.82  2[0:Inp] ||  -> ssList(skc6)*.
% 16.65/16.82  3[0:Inp] ||  -> ssList(skc5)*.
% 16.65/16.82  4[0:Inp] ||  -> equalelemsP(skc5)*.
% 16.65/16.82  7[0:Inp] ||  -> ssList(nil)*.
% 16.65/16.82  8[0:Inp] ||  -> cyclefreeP(nil)*.
% 16.65/16.82  9[0:Inp] ||  -> totalorderP(nil)*.
% 16.65/16.82  10[0:Inp] ||  -> strictorderP(nil)*.
% 16.65/16.82  11[0:Inp] ||  -> totalorderedP(nil)*.
% 16.65/16.82  12[0:Inp] ||  -> strictorderedP(nil)*.
% 16.65/16.82  13[0:Inp] ||  -> duplicatefreeP(nil)*.
% 16.65/16.82  14[0:Inp] ||  -> equalelemsP(nil)*.
% 16.65/16.82  60[0:Inp] ||  -> equal(app(skc5,skc7),skc6)**.
% 16.65/16.82  61[0:Inp] ||  -> SkP0(u,v)* equal(nil,v).
% 16.65/16.82  63[0:Inp] ssList(u) ||  -> frontsegP(u,u)*.
% 16.65/16.82  64[0:Inp] ssList(u) ||  -> frontsegP(u,nil)*.
% 16.65/16.82  70[0:Inp] || equal(skc5,nil) -> equal(skc6,nil)**.
% 16.65/16.82  71[0:Inp] || SkP0(skc5,skc6) -> neq(skc6,nil)*.
% 16.65/16.82  72[0:Inp] || equal(nil,u) -> SkP0(u,v)*.
% 16.65/16.82  88[0:Inp] ssList(u) ||  -> cyclefreeP(u) leq(skf51(u),skf50(u))*.
% 16.65/16.82  89[0:Inp] ssList(u) ||  -> cyclefreeP(u) leq(skf50(u),skf51(u))*.
% 16.65/16.82  108[0:Inp] ssList(u) ssList(v) ||  -> neq(v,u)* equal(v,u).
% 16.65/16.82  130[0:Inp] ssList(u) ssList(v) || equal(app(v,u),nil)** -> equal(nil,v).
% 16.65/16.82  143[0:Inp] ssList(u) ssList(v) ssList(w) || equal(app(u,w),v)*+ -> frontsegP(v,u)*.
% 16.65/16.82  153[0:Inp] ssList(u) ssItem(v) || strictorderedP(cons(v,u))* -> lt(v,hd(u)) equal(nil,u).
% 16.65/16.82  155[0:Inp] ssList(u) || neq(u,nil) frontsegP(skc5,u) frontsegP(skc6,u)* SkP0(skc5,skc6) -> .
% 16.65/16.82  174[0:Inp] ssList(u) ||  -> strictorderedP(u) equal(app(app(skf72(u),cons(skf70(u),skf73(u))),cons(skf71(u),skf74(u))),u)**.
% 16.65/16.82  175[0:Inp] ssList(u) ||  -> totalorderedP(u) equal(app(app(skf67(u),cons(skf65(u),skf68(u))),cons(skf66(u),skf69(u))),u)**.
% 16.65/16.82  223[0:Res:3.0,175.0] ||  -> totalorderedP(skc5) equal(app(app(skf67(skc5),cons(skf65(skc5),skf68(skc5))),cons(skf66(skc5),skf69(skc5))),skc5)**.
% 16.65/16.82  224[0:Res:3.0,174.0] ||  -> strictorderedP(skc5) equal(app(app(skf72(skc5),cons(skf70(skc5),skf73(skc5))),cons(skf71(skc5),skf74(skc5))),skc5)**.
% 16.65/16.82  235[0:Res:3.0,155.0] || neq(skc5,nil) frontsegP(skc6,skc5)* frontsegP(skc5,skc5) SkP0(skc5,skc6) -> .
% 16.65/16.82  251[0:Res:3.0,130.0] ssList(u) || equal(app(skc5,u),nil)** -> equal(skc5,nil).
% 16.65/16.82  256[0:Res:3.0,108.0] ssList(u) ||  -> neq(skc5,u)* equal(skc5,u).
% 16.65/16.82  269[0:Res:3.0,89.0] ||  -> cyclefreeP(skc5) leq(skf50(skc5),skf51(skc5))*.
% 16.65/16.82  283[0:Res:3.0,63.0] ||  -> frontsegP(skc5,skc5)*.
% 16.65/16.82  284[0:Res:3.0,64.0] ||  -> frontsegP(skc5,nil)*.
% 16.65/16.82  313[0:Res:3.0,153.1] ssItem(u) || strictorderedP(cons(u,skc5))* -> lt(u,hd(skc5)) equal(skc5,nil).
% 16.65/16.82  397[0:Res:2.0,175.0] ||  -> totalorderedP(skc6) equal(app(app(skf67(skc6),cons(skf65(skc6),skf68(skc6))),cons(skf66(skc6),skf69(skc6))),skc6)**.
% 16.65/16.82  398[0:Res:2.0,174.0] ||  -> strictorderedP(skc6) equal(app(app(skf72(skc6),cons(skf70(skc6),skf73(skc6))),cons(skf71(skc6),skf74(skc6))),skc6)**.
% 16.65/16.82  409[0:Res:2.0,155.0] || neq(skc6,nil) frontsegP(skc6,skc6)* frontsegP(skc5,skc6) SkP0(skc5,skc6) -> .
% 16.65/16.82  442[0:Res:2.0,88.0] ||  -> cyclefreeP(skc6) leq(skf51(skc6),skf50(skc6))*.
% 16.65/16.82  457[0:Res:2.0,63.0] ||  -> frontsegP(skc6,skc6)*.
% 16.65/16.82  487[0:Res:2.0,153.1] ssItem(u) || strictorderedP(cons(u,skc6))* -> lt(u,hd(skc6)) equal(skc6,nil).
% 16.65/16.82  553[0:MRR:235.2,283.0] || SkP0(skc5,skc6) frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 16.65/16.82  554[0:MRR:409.0,409.1,71.1,457.0] || SkP0(skc5,skc6) frontsegP(skc5,skc6)* -> .
% 16.65/16.82  564[1:Spt:313.3] ||  -> equal(skc5,nil)**.
% 16.65/16.82  569[1:Rew:564.0,554.0] || SkP0(nil,skc6) frontsegP(skc5,skc6)* -> .
% 16.65/16.82  575[1:Rew:564.0,70.0] || equal(nil,nil) -> equal(skc6,nil)**.
% 16.65/16.82  677[1:Rew:564.0,284.0] ||  -> frontsegP(nil,nil)*.
% 16.65/16.82  725[1:Obv:575.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  899[1:Rew:564.0,569.1,725.0,569.1,725.0,569.0] || SkP0(nil,nil) frontsegP(nil,nil)* -> .
% 16.65/16.82  900[1:MRR:899.1,677.0] || SkP0(nil,nil)* -> .
% 16.65/16.82  1085[1:Res:72.1,900.0] || equal(nil,nil)* -> .
% 16.65/16.82  1086[1:Obv:1085.0] ||  -> .
% 16.65/16.82  1087[1:Spt:1086.0,313.3,564.0] || equal(skc5,nil)** -> .
% 16.65/16.82  1088[1:Spt:1086.0,313.0,313.1,313.2] ssItem(u) || strictorderedP(cons(u,skc5))* -> lt(u,hd(skc5)).
% 16.65/16.82  1097[1:MRR:251.2,1087.0] ssList(u) || equal(app(skc5,u),nil)** -> .
% 16.65/16.82  1102[2:Spt:487.3] ||  -> equal(skc6,nil)**.
% 16.65/16.82  1110[2:Rew:1102.0,60.0] ||  -> equal(app(skc5,skc7),nil)**.
% 16.65/16.82  1423[2:SpL:1110.0,1097.1] ssList(skc7) || equal(nil,nil)* -> .
% 16.65/16.82  1426[2:Obv:1423.1] ssList(skc7) ||  -> .
% 16.65/16.82  1427[2:SSi:1426.0,1.0] ||  -> .
% 16.65/16.82  1428[2:Spt:1427.0,487.3,1102.0] || equal(skc6,nil)** -> .
% 16.65/16.82  1429[2:Spt:1427.0,487.0,487.1,487.2] ssItem(u) || strictorderedP(cons(u,skc6))* -> lt(u,hd(skc6)).
% 16.65/16.82  1451[3:Spt:223.0] ||  -> totalorderedP(skc5)*.
% 16.65/16.82  1455[4:Spt:224.0] ||  -> strictorderedP(skc5)*.
% 16.65/16.82  1458[5:Spt:397.0] ||  -> totalorderedP(skc6)*.
% 16.65/16.82  1462[6:Spt:398.0] ||  -> strictorderedP(skc6)*.
% 16.65/16.82  1465[7:Spt:269.0] ||  -> cyclefreeP(skc5)*.
% 16.65/16.82  1467[8:Spt:442.0] ||  -> cyclefreeP(skc6)*.
% 16.65/16.82  1470[9:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 16.65/16.82  1472[9:Res:61.0,1470.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  1473[9:MRR:1472.0,1428.0] ||  -> .
% 16.65/16.82  1474[9:Spt:1473.0,71.0,1470.0] ||  -> SkP0(skc5,skc6)*.
% 16.65/16.82  1475[9:Spt:1473.0,71.1] ||  -> neq(skc6,nil)*.
% 16.65/16.82  1477[9:MRR:553.0,1474.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 16.65/16.82  3697[0:SpL:60.0,143.3] ssList(skc5) ssList(u) ssList(skc7) || equal(skc6,u) -> frontsegP(u,skc5)*.
% 16.65/16.82  9832[7:SSi:3697.2,3697.0,1.0,3.0,4.0,1451.0,1455.0,1465.0] ssList(u) || equal(skc6,u) -> frontsegP(u,skc5)*.
% 16.65/16.82  10865[9:Res:9832.2,1477.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 16.65/16.82  10866[9:Obv:10865.1] ssList(skc6) || neq(skc5,nil)* -> .
% 16.65/16.82  11048[9:SSi:10866.0,2.0,1458.0,1462.0,1467.0] || neq(skc5,nil)* -> .
% 16.65/16.82  11132[9:Res:256.1,11048.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 16.65/16.82  11135[9:SSi:11132.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 16.65/16.82  11136[9:MRR:11135.0,1087.0] ||  -> .
% 16.65/16.82  11140[8:Spt:11136.0,442.0,1467.0] || cyclefreeP(skc6)* -> .
% 16.65/16.82  11141[8:Spt:11136.0,442.1] ||  -> leq(skf51(skc6),skf50(skc6))*.
% 16.65/16.82  11179[9:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 16.65/16.82  11181[9:Res:61.0,11179.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  11182[9:MRR:11181.0,1428.0] ||  -> .
% 16.65/16.82  11183[9:Spt:11182.0,71.0,11179.0] ||  -> SkP0(skc5,skc6)*.
% 16.65/16.82  11184[9:Spt:11182.0,71.1] ||  -> neq(skc6,nil)*.
% 16.65/16.82  11186[9:MRR:553.0,11183.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 16.65/16.82  12485[9:Res:9832.2,11186.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 16.65/16.82  12486[9:Obv:12485.1] ssList(skc6) || neq(skc5,nil)* -> .
% 16.65/16.82  12716[9:SSi:12486.0,2.0,1462.0,1458.0] || neq(skc5,nil)* -> .
% 16.65/16.82  12826[9:Res:256.1,12716.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 16.65/16.82  12829[9:SSi:12826.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 16.65/16.82  12830[9:MRR:12829.0,1087.0] ||  -> .
% 16.65/16.82  12834[7:Spt:12830.0,269.0,1465.0] || cyclefreeP(skc5)* -> .
% 16.65/16.82  12835[7:Spt:12830.0,269.1] ||  -> leq(skf50(skc5),skf51(skc5))*.
% 16.65/16.82  12850[4:SSi:3697.2,3697.0,1.0,3.0,4.0,1451.0,1455.0] ssList(u) || equal(skc6,u) -> frontsegP(u,skc5)*.
% 16.65/16.82  12878[8:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 16.65/16.82  12880[8:Res:61.0,12878.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  12881[8:MRR:12880.0,1428.0] ||  -> .
% 16.65/16.82  12882[8:Spt:12881.0,71.0,12878.0] ||  -> SkP0(skc5,skc6)*.
% 16.65/16.82  12883[8:Spt:12881.0,71.1] ||  -> neq(skc6,nil)*.
% 16.65/16.82  12885[8:MRR:553.0,12882.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 16.65/16.82  14526[8:Res:12850.2,12885.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 16.65/16.82  14527[8:Obv:14526.1] ssList(skc6) || neq(skc5,nil)* -> .
% 16.65/16.82  14819[8:SSi:14527.0,2.0,1458.0,1462.0] || neq(skc5,nil)* -> .
% 16.65/16.82  14875[8:Res:256.1,14819.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 16.65/16.82  14878[8:SSi:14875.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 16.65/16.82  14879[8:MRR:14878.0,1087.0] ||  -> .
% 16.65/16.82  14883[6:Spt:14879.0,398.0,1462.0] || strictorderedP(skc6)* -> .
% 16.65/16.82  14884[6:Spt:14879.0,398.1] ||  -> equal(app(app(skf72(skc6),cons(skf70(skc6),skf73(skc6))),cons(skf71(skc6),skf74(skc6))),skc6)**.
% 16.65/16.82  14992[7:Spt:442.0] ||  -> cyclefreeP(skc6)*.
% 16.65/16.82  14998[8:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 16.65/16.82  15000[8:Res:61.0,14998.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  15001[8:MRR:15000.0,1428.0] ||  -> .
% 16.65/16.82  15002[8:Spt:15001.0,71.0,14998.0] ||  -> SkP0(skc5,skc6)*.
% 16.65/16.82  15003[8:Spt:15001.0,71.1] ||  -> neq(skc6,nil)*.
% 16.65/16.82  15005[8:MRR:553.0,15002.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 16.65/16.82  15318[8:Res:12850.2,15005.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 16.65/16.82  15320[8:Obv:15318.1] ssList(skc6) || neq(skc5,nil)* -> .
% 16.65/16.82  15496[8:SSi:15320.0,2.0,1458.0,14992.0] || neq(skc5,nil)* -> .
% 16.65/16.82  15600[8:Res:256.1,15496.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 16.65/16.82  15603[8:SSi:15600.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 16.65/16.82  15604[8:MRR:15603.0,1087.0] ||  -> .
% 16.65/16.82  15608[7:Spt:15604.0,442.0,14992.0] || cyclefreeP(skc6)* -> .
% 16.65/16.82  15609[7:Spt:15604.0,442.1] ||  -> leq(skf51(skc6),skf50(skc6))*.
% 16.65/16.82  15660[8:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 16.65/16.82  15662[8:Res:61.0,15660.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  15663[8:MRR:15662.0,1428.0] ||  -> .
% 16.65/16.82  15664[8:Spt:15663.0,71.0,15660.0] ||  -> SkP0(skc5,skc6)*.
% 16.65/16.82  15665[8:Spt:15663.0,71.1] ||  -> neq(skc6,nil)*.
% 16.65/16.82  15667[8:MRR:553.0,15664.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 16.65/16.82  15940[8:Res:12850.2,15667.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 16.65/16.82  15942[8:Obv:15940.1] ssList(skc6) || neq(skc5,nil)* -> .
% 16.65/16.82  16059[8:SSi:15942.0,2.0,1458.0] || neq(skc5,nil)* -> .
% 16.65/16.82  16134[8:Res:256.1,16059.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 16.65/16.82  16137[8:SSi:16134.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 16.65/16.82  16138[8:MRR:16137.0,1087.0] ||  -> .
% 16.65/16.82  16142[5:Spt:16138.0,397.0,1458.0] || totalorderedP(skc6)* -> .
% 16.65/16.82  16143[5:Spt:16138.0,397.1] ||  -> equal(app(app(skf67(skc6),cons(skf65(skc6),skf68(skc6))),cons(skf66(skc6),skf69(skc6))),skc6)**.
% 16.65/16.82  16250[6:Spt:398.0] ||  -> strictorderedP(skc6)*.
% 16.65/16.82  16259[7:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 16.65/16.82  16261[7:Res:61.0,16259.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  16262[7:MRR:16261.0,1428.0] ||  -> .
% 16.65/16.82  16263[7:Spt:16262.0,71.0,16259.0] ||  -> SkP0(skc5,skc6)*.
% 16.65/16.82  16264[7:Spt:16262.0,71.1] ||  -> neq(skc6,nil)*.
% 16.65/16.82  16266[7:MRR:553.0,16263.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 16.65/16.82  16570[7:Res:12850.2,16266.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 16.65/16.82  16572[7:Obv:16570.1] ssList(skc6) || neq(skc5,nil)* -> .
% 16.65/16.82  16853[7:SSi:16572.0,2.0,16250.0] || neq(skc5,nil)* -> .
% 16.65/16.82  16943[7:Res:256.1,16853.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 16.65/16.82  16946[7:SSi:16943.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 16.65/16.82  16947[7:MRR:16946.0,1087.0] ||  -> .
% 16.65/16.82  16951[6:Spt:16947.0,398.0,16250.0] || strictorderedP(skc6)* -> .
% 16.65/16.82  16952[6:Spt:16947.0,398.1] ||  -> equal(app(app(skf72(skc6),cons(skf70(skc6),skf73(skc6))),cons(skf71(skc6),skf74(skc6))),skc6)**.
% 16.65/16.82  17056[7:Spt:442.0] ||  -> cyclefreeP(skc6)*.
% 16.65/16.82  17062[8:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 16.65/16.82  17064[8:Res:61.0,17062.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  17065[8:MRR:17064.0,1428.0] ||  -> .
% 16.65/16.82  17066[8:Spt:17065.0,71.0,17062.0] ||  -> SkP0(skc5,skc6)*.
% 16.65/16.82  17067[8:Spt:17065.0,71.1] ||  -> neq(skc6,nil)*.
% 16.65/16.82  17069[8:MRR:553.0,17066.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 16.65/16.82  17299[8:Res:12850.2,17069.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 16.65/16.82  17301[8:Obv:17299.1] ssList(skc6) || neq(skc5,nil)* -> .
% 16.65/16.82  17419[8:SSi:17301.0,2.0,17056.0] || neq(skc5,nil)* -> .
% 16.65/16.82  17492[8:Res:256.1,17419.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 16.65/16.82  17495[8:SSi:17492.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 16.65/16.82  17496[8:MRR:17495.0,1087.0] ||  -> .
% 16.65/16.82  17500[7:Spt:17496.0,442.0,17056.0] || cyclefreeP(skc6)* -> .
% 16.65/16.82  17501[7:Spt:17496.0,442.1] ||  -> leq(skf51(skc6),skf50(skc6))*.
% 16.65/16.82  17518[8:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 16.65/16.82  17520[8:Res:61.0,17518.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  17521[8:MRR:17520.0,1428.0] ||  -> .
% 16.65/16.82  17522[8:Spt:17521.0,71.0,17518.0] ||  -> SkP0(skc5,skc6)*.
% 16.65/16.82  17523[8:Spt:17521.0,71.1] ||  -> neq(skc6,nil)*.
% 16.65/16.82  17525[8:MRR:553.0,17522.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 16.65/16.82  17793[8:Res:12850.2,17525.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 16.65/16.82  17795[8:Obv:17793.1] ssList(skc6) || neq(skc5,nil)* -> .
% 16.65/16.82  17909[8:SSi:17795.0,2.0] || neq(skc5,nil)* -> .
% 16.65/16.82  17984[8:Res:256.1,17909.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 16.65/16.82  17987[8:SSi:17984.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 16.65/16.82  17988[8:MRR:17987.0,1087.0] ||  -> .
% 16.65/16.82  17992[4:Spt:17988.0,224.0,1455.0] || strictorderedP(skc5)* -> .
% 16.65/16.82  17993[4:Spt:17988.0,224.1] ||  -> equal(app(app(skf72(skc5),cons(skf70(skc5),skf73(skc5))),cons(skf71(skc5),skf74(skc5))),skc5)**.
% 16.65/16.82  18017[3:SSi:3697.2,3697.0,1.0,3.0,4.0,1451.0] ssList(u) || equal(skc6,u) -> frontsegP(u,skc5)*.
% 16.65/16.82  18106[5:Spt:398.0] ||  -> strictorderedP(skc6)*.
% 16.65/16.82  18115[6:Spt:397.0] ||  -> totalorderedP(skc6)*.
% 16.65/16.82  18121[7:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 16.65/16.82  18123[7:Res:61.0,18121.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  18124[7:MRR:18123.0,1428.0] ||  -> .
% 16.65/16.82  18125[7:Spt:18124.0,71.0,18121.0] ||  -> SkP0(skc5,skc6)*.
% 16.65/16.82  18126[7:Spt:18124.0,71.1] ||  -> neq(skc6,nil)*.
% 16.65/16.82  18128[7:MRR:553.0,18125.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 16.65/16.82  18976[7:Res:18017.2,18128.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 16.65/16.82  18977[7:Obv:18976.1] ssList(skc6) || neq(skc5,nil)* -> .
% 16.65/16.82  19283[7:SSi:18977.0,2.0,18106.0,18115.0] || neq(skc5,nil)* -> .
% 16.65/16.82  19341[7:Res:256.1,19283.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 16.65/16.82  19344[7:SSi:19341.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 16.65/16.82  19345[7:MRR:19344.0,1087.0] ||  -> .
% 16.65/16.82  19349[6:Spt:19345.0,397.0,18115.0] || totalorderedP(skc6)* -> .
% 16.65/16.82  19350[6:Spt:19345.0,397.1] ||  -> equal(app(app(skf67(skc6),cons(skf65(skc6),skf68(skc6))),cons(skf66(skc6),skf69(skc6))),skc6)**.
% 16.65/16.82  19461[7:Spt:442.0] ||  -> cyclefreeP(skc6)*.
% 16.65/16.82  19470[8:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 16.65/16.82  19472[8:Res:61.0,19470.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  19473[8:MRR:19472.0,1428.0] ||  -> .
% 16.65/16.82  19474[8:Spt:19473.0,71.0,19470.0] ||  -> SkP0(skc5,skc6)*.
% 16.65/16.82  19475[8:Spt:19473.0,71.1] ||  -> neq(skc6,nil)*.
% 16.65/16.82  19477[8:MRR:553.0,19474.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 16.65/16.82  19508[8:Res:18017.2,19477.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 16.65/16.82  19510[8:Obv:19508.1] ssList(skc6) || neq(skc5,nil)* -> .
% 16.65/16.82  19626[8:SSi:19510.0,2.0,18106.0,19461.0] || neq(skc5,nil)* -> .
% 16.65/16.82  19699[8:Res:256.1,19626.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 16.65/16.82  19702[8:SSi:19699.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 16.65/16.82  19703[8:MRR:19702.0,1087.0] ||  -> .
% 16.65/16.82  19707[7:Spt:19703.0,442.0,19461.0] || cyclefreeP(skc6)* -> .
% 16.65/16.82  19708[7:Spt:19703.0,442.1] ||  -> leq(skf51(skc6),skf50(skc6))*.
% 16.65/16.82  19726[8:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 16.65/16.82  19728[8:Res:61.0,19726.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  19729[8:MRR:19728.0,1428.0] ||  -> .
% 16.65/16.82  19730[8:Spt:19729.0,71.0,19726.0] ||  -> SkP0(skc5,skc6)*.
% 16.65/16.82  19731[8:Spt:19729.0,71.1] ||  -> neq(skc6,nil)*.
% 16.65/16.82  19733[8:MRR:553.0,19730.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 16.65/16.82  19755[8:Res:18017.2,19733.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 16.65/16.82  19757[8:Obv:19755.1] ssList(skc6) || neq(skc5,nil)* -> .
% 16.65/16.82  19868[8:SSi:19757.0,2.0,18106.0] || neq(skc5,nil)* -> .
% 16.65/16.82  19948[8:Res:256.1,19868.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 16.65/16.82  19951[8:SSi:19948.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 16.65/16.82  19952[8:MRR:19951.0,1087.0] ||  -> .
% 16.65/16.82  19956[5:Spt:19952.0,398.0,18106.0] || strictorderedP(skc6)* -> .
% 16.65/16.82  19957[5:Spt:19952.0,398.1] ||  -> equal(app(app(skf72(skc6),cons(skf70(skc6),skf73(skc6))),cons(skf71(skc6),skf74(skc6))),skc6)**.
% 16.65/16.82  20040[6:Spt:397.0] ||  -> totalorderedP(skc6)*.
% 16.65/16.82  20050[7:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 16.65/16.82  20052[7:Res:61.0,20050.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  20053[7:MRR:20052.0,1428.0] ||  -> .
% 16.65/16.82  20054[7:Spt:20053.0,71.0,20050.0] ||  -> SkP0(skc5,skc6)*.
% 16.65/16.82  20055[7:Spt:20053.0,71.1] ||  -> neq(skc6,nil)*.
% 16.65/16.82  20057[7:MRR:553.0,20054.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 16.65/16.82  20085[7:Res:18017.2,20057.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 16.65/16.82  20087[7:Obv:20085.1] ssList(skc6) || neq(skc5,nil)* -> .
% 16.65/16.82  20286[7:SSi:20087.0,2.0,20040.0] || neq(skc5,nil)* -> .
% 16.65/16.82  20306[7:Res:256.1,20286.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 16.65/16.82  20309[7:SSi:20306.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 16.65/16.82  20310[7:MRR:20309.0,1087.0] ||  -> .
% 16.65/16.82  20314[6:Spt:20310.0,397.0,20040.0] || totalorderedP(skc6)* -> .
% 16.65/16.82  20315[6:Spt:20310.0,397.1] ||  -> equal(app(app(skf67(skc6),cons(skf65(skc6),skf68(skc6))),cons(skf66(skc6),skf69(skc6))),skc6)**.
% 16.65/16.82  20390[7:Spt:442.0] ||  -> cyclefreeP(skc6)*.
% 16.65/16.82  20393[8:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 16.65/16.82  20395[8:Res:61.0,20393.0] ||  -> equal(skc6,nil)**.
% 16.65/16.82  20396[8:MRR:20395.0,1428.0] ||  -> .
% 16.65/16.82  20397[8:Spt:20396.0,71.0,20393.0] ||  -> SkP0(skc5,skc6)*.
% 16.65/16.82  20398[8:Spt:20396.0,71.1] ||  -> neq(skc6,nil)*.
% 16.65/16.82  20400[8:MRR:553.0,20397.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 18.46/18.68  20416[8:Res:18017.2,20400.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 18.46/18.68  20418[8:Obv:20416.1] ssList(skc6) || neq(skc5,nil)* -> .
% 18.46/18.68  20534[8:SSi:20418.0,2.0,20390.0] || neq(skc5,nil)* -> .
% 18.46/18.68  20607[8:Res:256.1,20534.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 18.46/18.68  20610[8:SSi:20607.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 18.46/18.68  20611[8:MRR:20610.0,1087.0] ||  -> .
% 18.46/18.68  20615[7:Spt:20611.0,442.0,20390.0] || cyclefreeP(skc6)* -> .
% 18.46/18.68  20616[7:Spt:20611.0,442.1] ||  -> leq(skf51(skc6),skf50(skc6))*.
% 18.46/18.68  20632[8:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 18.46/18.68  20634[8:Res:61.0,20632.0] ||  -> equal(skc6,nil)**.
% 18.46/18.68  20635[8:MRR:20634.0,1428.0] ||  -> .
% 18.46/18.68  20636[8:Spt:20635.0,71.0,20632.0] ||  -> SkP0(skc5,skc6)*.
% 18.46/18.68  20637[8:Spt:20635.0,71.1] ||  -> neq(skc6,nil)*.
% 18.46/18.68  20639[8:MRR:553.0,20636.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 18.46/18.68  20658[8:Res:18017.2,20639.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 18.46/18.68  20660[8:Obv:20658.1] ssList(skc6) || neq(skc5,nil)* -> .
% 18.46/18.68  20768[8:SSi:20660.0,2.0] || neq(skc5,nil)* -> .
% 18.46/18.68  20842[8:Res:256.1,20768.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 18.46/18.68  20845[8:SSi:20842.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 18.46/18.68  20846[8:MRR:20845.0,1087.0] ||  -> .
% 18.46/18.68  20850[3:Spt:20846.0,223.0,1451.0] || totalorderedP(skc5)* -> .
% 18.46/18.68  20851[3:Spt:20846.0,223.1] ||  -> equal(app(app(skf67(skc5),cons(skf65(skc5),skf68(skc5))),cons(skf66(skc5),skf69(skc5))),skc5)**.
% 18.46/18.68  20873[0:SSi:3697.2,3697.0,1.0,3.0,4.0] ssList(u) || equal(skc6,u) -> frontsegP(u,skc5)*.
% 18.46/18.68  20959[4:Spt:397.0] ||  -> totalorderedP(skc6)*.
% 18.46/18.68  20969[5:Spt:398.0] ||  -> strictorderedP(skc6)*.
% 18.46/18.68  20974[6:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 18.46/18.68  20976[6:Res:61.0,20974.0] ||  -> equal(skc6,nil)**.
% 18.46/18.68  20977[6:MRR:20976.0,1428.0] ||  -> .
% 18.46/18.68  20978[6:Spt:20977.0,71.0,20974.0] ||  -> SkP0(skc5,skc6)*.
% 18.46/18.68  20979[6:Spt:20977.0,71.1] ||  -> neq(skc6,nil)*.
% 18.46/18.68  20981[6:MRR:553.0,20978.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 18.46/18.68  21751[6:Res:20873.2,20981.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 18.46/18.68  21752[6:Obv:21751.1] ssList(skc6) || neq(skc5,nil)* -> .
% 18.46/18.68  22027[6:SSi:21752.0,2.0,20959.0,20969.0] || neq(skc5,nil)* -> .
% 18.46/18.68  22085[6:Res:256.1,22027.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 18.46/18.68  22088[6:SSi:22085.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 18.46/18.68  22089[6:MRR:22088.0,1087.0] ||  -> .
% 18.46/18.68  22093[5:Spt:22089.0,398.0,20969.0] || strictorderedP(skc6)* -> .
% 18.46/18.68  22094[5:Spt:22089.0,398.1] ||  -> equal(app(app(skf72(skc6),cons(skf70(skc6),skf73(skc6))),cons(skf71(skc6),skf74(skc6))),skc6)**.
% 18.46/18.68  22215[6:Spt:442.0] ||  -> cyclefreeP(skc6)*.
% 18.46/18.68  22221[7:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 18.46/18.68  22223[7:Res:61.0,22221.0] ||  -> equal(skc6,nil)**.
% 18.46/18.68  22224[7:MRR:22223.0,1428.0] ||  -> .
% 18.46/18.68  22225[7:Spt:22224.0,71.0,22221.0] ||  -> SkP0(skc5,skc6)*.
% 18.46/18.68  22226[7:Spt:22224.0,71.1] ||  -> neq(skc6,nil)*.
% 18.46/18.68  22228[7:MRR:553.0,22225.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 18.46/18.68  22269[7:Res:20873.2,22228.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 18.46/18.68  22271[7:Obv:22269.1] ssList(skc6) || neq(skc5,nil)* -> .
% 18.46/18.68  22385[7:SSi:22271.0,2.0,20959.0,22215.0] || neq(skc5,nil)* -> .
% 18.46/18.68  22464[7:Res:256.1,22385.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 18.46/18.68  22467[7:SSi:22464.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 18.46/18.68  22468[7:MRR:22467.0,1087.0] ||  -> .
% 18.46/18.68  22472[6:Spt:22468.0,442.0,22215.0] || cyclefreeP(skc6)* -> .
% 18.46/18.68  22473[6:Spt:22468.0,442.1] ||  -> leq(skf51(skc6),skf50(skc6))*.
% 18.46/18.68  22490[7:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 18.46/18.68  22492[7:Res:61.0,22490.0] ||  -> equal(skc6,nil)**.
% 18.46/18.68  22493[7:MRR:22492.0,1428.0] ||  -> .
% 18.46/18.68  22494[7:Spt:22493.0,71.0,22490.0] ||  -> SkP0(skc5,skc6)*.
% 18.46/18.68  22495[7:Spt:22493.0,71.1] ||  -> neq(skc6,nil)*.
% 18.46/18.68  22497[7:MRR:553.0,22494.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 18.46/18.68  22518[7:Res:20873.2,22497.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 18.46/18.68  22520[7:Obv:22518.1] ssList(skc6) || neq(skc5,nil)* -> .
% 18.46/18.68  22631[7:SSi:22520.0,2.0,20959.0] || neq(skc5,nil)* -> .
% 18.46/18.68  22704[7:Res:256.1,22631.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 18.46/18.68  22707[7:SSi:22704.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 18.46/18.68  22708[7:MRR:22707.0,1087.0] ||  -> .
% 18.46/18.68  22712[4:Spt:22708.0,397.0,20959.0] || totalorderedP(skc6)* -> .
% 18.46/18.68  22713[4:Spt:22708.0,397.1] ||  -> equal(app(app(skf67(skc6),cons(skf65(skc6),skf68(skc6))),cons(skf66(skc6),skf69(skc6))),skc6)**.
% 18.46/18.68  22803[5:Spt:398.0] ||  -> strictorderedP(skc6)*.
% 18.46/18.68  22808[6:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 18.46/18.68  22810[6:Res:61.0,22808.0] ||  -> equal(skc6,nil)**.
% 18.46/18.68  22811[6:MRR:22810.0,1428.0] ||  -> .
% 18.46/18.68  22812[6:Spt:22811.0,71.0,22808.0] ||  -> SkP0(skc5,skc6)*.
% 18.46/18.68  22813[6:Spt:22811.0,71.1] ||  -> neq(skc6,nil)*.
% 18.46/18.68  22815[6:MRR:553.0,22812.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 18.46/18.68  22855[6:Res:20873.2,22815.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 18.46/18.68  22857[6:Obv:22855.1] ssList(skc6) || neq(skc5,nil)* -> .
% 18.46/18.68  23057[6:SSi:22857.0,2.0,22803.0] || neq(skc5,nil)* -> .
% 18.46/18.68  23073[6:Res:256.1,23057.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 18.46/18.68  23076[6:SSi:23073.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 18.46/18.68  23077[6:MRR:23076.0,1087.0] ||  -> .
% 18.46/18.68  23081[5:Spt:23077.0,398.0,22803.0] || strictorderedP(skc6)* -> .
% 18.46/18.68  23082[5:Spt:23077.0,398.1] ||  -> equal(app(app(skf72(skc6),cons(skf70(skc6),skf73(skc6))),cons(skf71(skc6),skf74(skc6))),skc6)**.
% 18.46/18.68  23156[6:Spt:442.0] ||  -> cyclefreeP(skc6)*.
% 18.46/18.68  23161[7:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 18.46/18.68  23163[7:Res:61.0,23161.0] ||  -> equal(skc6,nil)**.
% 18.46/18.68  23164[7:MRR:23163.0,1428.0] ||  -> .
% 18.46/18.68  23165[7:Spt:23164.0,71.0,23161.0] ||  -> SkP0(skc5,skc6)*.
% 18.46/18.68  23166[7:Spt:23164.0,71.1] ||  -> neq(skc6,nil)*.
% 18.46/18.68  23168[7:MRR:553.0,23165.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 18.46/18.68  23185[7:Res:20873.2,23168.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 18.46/18.68  23187[7:Obv:23185.1] ssList(skc6) || neq(skc5,nil)* -> .
% 18.46/18.68  23299[7:SSi:23187.0,2.0,23156.0] || neq(skc5,nil)* -> .
% 18.46/18.68  23373[7:Res:256.1,23299.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 18.46/18.68  23376[7:SSi:23373.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 18.46/18.68  23377[7:MRR:23376.0,1087.0] ||  -> .
% 18.46/18.68  23381[6:Spt:23377.0,442.0,23156.0] || cyclefreeP(skc6)* -> .
% 18.46/18.68  23382[6:Spt:23377.0,442.1] ||  -> leq(skf51(skc6),skf50(skc6))*.
% 18.46/18.68  23397[7:Spt:71.0] || SkP0(skc5,skc6)* -> .
% 18.46/18.68  23399[7:Res:61.0,23397.0] ||  -> equal(skc6,nil)**.
% 18.46/18.68  23400[7:MRR:23399.0,1428.0] ||  -> .
% 18.46/18.68  23401[7:Spt:23400.0,71.0,23397.0] ||  -> SkP0(skc5,skc6)*.
% 18.46/18.68  23402[7:Spt:23400.0,71.1] ||  -> neq(skc6,nil)*.
% 18.46/18.68  23404[7:MRR:553.0,23401.0] || frontsegP(skc6,skc5)* neq(skc5,nil) -> .
% 18.46/18.68  23426[7:Res:20873.2,23404.0] ssList(skc6) || equal(skc6,skc6) neq(skc5,nil)* -> .
% 18.46/18.68  23428[7:Obv:23426.1] ssList(skc6) || neq(skc5,nil)* -> .
% 18.46/18.68  23538[7:SSi:23428.0,2.0] || neq(skc5,nil)* -> .
% 18.46/18.68  23612[7:Res:256.1,23538.0] ssList(nil) ||  -> equal(skc5,nil)**.
% 18.46/18.68  23615[7:SSi:23612.0,14.0,13.0,10.0,9.0,8.0,12.0,11.0,7.0] ||  -> equal(skc5,nil)**.
% 18.46/18.68  23616[7:MRR:23615.0,1087.0] ||  -> .
% 18.46/18.68  % SZS output end Refutation
% 18.46/18.68  Formulae used in the proof : co1 ax17 ax60 ax62 ax64 ax66 ax69 ax72 ax74 ax42 ax45 ax8 ax2 ax15 ax83 ax5 ax70 ax12 ax11
% 18.46/18.68  
%------------------------------------------------------------------------------