TSTP Solution File: FLD028-3 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : FLD028-3 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n028.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 02:28:22 EDT 2022

% Result   : Unsatisfiable 26.66s 26.90s
% Output   : Refutation 27.32s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.13/0.13  % Problem  : FLD028-3 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.13/0.14  % Command  : run_spass %d %s
% 0.14/0.36  % Computer : n028.cluster.edu
% 0.14/0.36  % Model    : x86_64 x86_64
% 0.14/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.36  % Memory   : 8042.1875MB
% 0.14/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.36  % CPULimit : 300
% 0.14/0.36  % WCLimit  : 600
% 0.14/0.36  % DateTime : Mon Jun  6 16:21:44 EDT 2022
% 0.14/0.36  % CPUTime  : 
% 26.66/26.90  
% 26.66/26.90  SPASS V 3.9 
% 26.66/26.90  SPASS beiseite: Proof found.
% 26.66/26.90  % SZS status Theorem
% 26.66/26.90  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 26.66/26.90  SPASS derived 17749 clauses, backtracked 581 clauses, performed 8 splits and kept 11880 clauses.
% 26.66/26.90  SPASS allocated 91728 KBytes.
% 26.66/26.90  SPASS spent	0:0:26.51 on the problem.
% 26.66/26.90  		0:00:00.03 for the input.
% 26.66/26.90  		0:00:00.00 for the FLOTTER CNF translation.
% 26.66/26.90  		0:00:00.18 for inferences.
% 26.66/26.90  		0:00:01.53 for the backtracking.
% 26.66/26.90  		0:0:24.48 for the reduction.
% 26.66/26.90  
% 26.66/26.90  
% 26.66/26.90  Here is a proof with depth 18, length 158 :
% 26.66/26.90  % SZS output start Refutation
% 26.66/26.90  1[0:Inp] ||  -> defined(a)*.
% 26.66/26.90  2[0:Inp] ||  -> defined(b)*.
% 26.66/26.90  3[0:Inp] ||  -> defined(u__dfg)*.
% 26.66/26.90  4[0:Inp] ||  -> defined(v__dfg)*.
% 26.66/26.90  5[0:Inp] || sum__dfg(additive_identity,a,additive_identity)* -> .
% 26.66/26.90  6[0:Inp] ||  -> product(a,u__dfg,b)*.
% 26.66/26.90  7[0:Inp] ||  -> product(a,v__dfg,b)*.
% 26.66/26.90  8[0:Inp] || product(multiplicative_identity,u__dfg,v__dfg)* -> .
% 26.66/26.90  9[0:Inp] || sum__dfg(u,v,w)*+ sum__dfg(x,v,y)* sum__dfg(z,x,u)* -> sum__dfg(z,y,w)*.
% 26.66/26.90  10[0:Inp] || sum__dfg(u,v,w)*+ sum__dfg(x,y,v)* sum__dfg(u,x,z)* -> sum__dfg(z,y,w)*.
% 26.66/26.90  11[0:Inp] defined(u) ||  -> sum__dfg(additive_identity,u,u)*.
% 26.66/26.90  12[0:Inp] defined(u) ||  -> sum__dfg(additive_inverse(u),u,additive_identity)*.
% 26.66/26.90  13[0:Inp] || sum__dfg(u,v,w)*+ -> sum__dfg(v,u,w)*.
% 26.66/26.90  14[0:Inp] || product(u,v,w)*+ product(x,v,y)* product(z,x,u)* -> product(z,y,w)*.
% 26.66/26.90  15[0:Inp] || product(u,v,w)*+ product(x,y,v)* product(u,x,z)* -> product(z,y,w)*.
% 26.66/26.90  16[0:Inp] defined(u) ||  -> product(multiplicative_identity,u,u)*.
% 26.66/26.90  17[0:Inp] defined(u) ||  -> sum__dfg(additive_identity,u,additive_identity) product(multiplicative_inverse(u),u,multiplicative_identity)*.
% 26.66/26.90  18[0:Inp] || product(u,v,w)*+ -> product(v,u,w)*.
% 26.66/26.90  20[0:Inp] || sum__dfg(u,v,w)*+ product(x,y,v)* product(z,y,u)* sum__dfg(z,x,x1)* -> product(x1,y,w)*.
% 26.66/26.90  22[0:Inp] ||  -> defined(additive_identity)*.
% 26.66/26.90  23[0:Inp] defined(u) ||  -> defined(additive_inverse(u))*.
% 26.66/26.90  25[0:Inp] ||  -> defined(multiplicative_identity)*.
% 26.66/26.90  26[0:Inp] defined(u) ||  -> defined(multiplicative_inverse(u)) sum__dfg(additive_identity,u,additive_identity)*.
% 26.66/26.90  34[0:Inp] || sum__dfg(additive_identity,additive_identity,multiplicative_identity)* -> .
% 26.66/26.90  37[0:Res:7.0,15.0] || product(a,u,v)*+ product(v__dfg,w,u)* -> product(b,w,v)*.
% 26.66/26.90  38[0:Res:7.0,18.0] ||  -> product(v__dfg,a,b)*.
% 26.66/26.90  40[0:Res:7.0,14.1] || product(u,v__dfg,v)*+ product(w,a,u)* -> product(w,b,v)*.
% 26.66/26.90  50[0:Res:6.0,15.0] || product(a,u,v)*+ product(u__dfg,w,u)* -> product(b,w,v)*.
% 26.66/26.90  51[0:Res:6.0,18.0] ||  -> product(u__dfg,a,b)*.
% 26.66/26.90  53[0:Res:6.0,14.1] || product(u,u__dfg,v)*+ product(w,a,u)* -> product(w,b,v)*.
% 26.66/26.90  62[0:Res:14.3,8.0] || product(u,v,v__dfg)*+ product(w,v,u__dfg)* product(multiplicative_identity,w,u)* -> .
% 26.66/26.90  63[0:Res:15.3,8.0] || product(u,v,v__dfg)*+ product(u,w,multiplicative_identity)* product(w,u__dfg,v)* -> .
% 26.66/26.90  65[0:Res:17.2,5.0] defined(a) ||  -> product(multiplicative_inverse(a),a,multiplicative_identity)*.
% 26.66/26.90  73[0:MRR:65.0,1.0] ||  -> product(multiplicative_inverse(a),a,multiplicative_identity)*.
% 26.66/26.90  85[0:Res:11.1,13.0] defined(u) ||  -> sum__dfg(u,additive_identity,u)*.
% 26.66/26.90  94[0:Res:16.1,18.0] defined(u) ||  -> product(u,multiplicative_identity,u)*.
% 26.66/26.90  101[0:Res:17.2,18.0] defined(u) ||  -> sum__dfg(additive_identity,u,additive_identity) product(u,multiplicative_inverse(u),multiplicative_identity)*.
% 26.66/26.90  108[0:Res:6.0,50.0] || product(u__dfg,u,u__dfg) -> product(b,u,b)*.
% 26.66/26.90  111[0:Res:94.1,50.0] defined(a) || product(u__dfg,u,multiplicative_identity) -> product(b,u,a)*.
% 26.66/26.90  114[0:SSi:111.0,1.0] || product(u__dfg,u,multiplicative_identity) -> product(b,u,a)*.
% 26.66/26.90  119[0:Res:12.1,10.0] defined(u) || sum__dfg(v,w,u)* sum__dfg(additive_inverse(u),v,x)*+ -> sum__dfg(x,w,additive_identity)*.
% 26.66/26.90  126[0:Res:108.1,18.0] || product(u__dfg,u,u__dfg)*+ -> product(u,b,b)*.
% 26.66/26.90  127[0:Res:114.1,18.0] || product(u__dfg,u,multiplicative_identity)*+ -> product(u,b,a)*.
% 26.66/26.90  128[0:Res:94.1,126.0] defined(u__dfg) ||  -> product(multiplicative_identity,b,b)*.
% 26.66/26.90  129[0:SSi:128.0,3.0] ||  -> product(multiplicative_identity,b,b)*.
% 26.66/26.90  130[0:Res:11.1,9.0] defined(u) || sum__dfg(v,u,w)*+ sum__dfg(x,v,additive_identity)* -> sum__dfg(x,w,u)*.
% 26.66/26.90  140[0:Res:101.2,127.0] defined(u__dfg) ||  -> sum__dfg(additive_identity,u__dfg,additive_identity) product(multiplicative_inverse(u__dfg),b,a)*.
% 26.66/26.90  141[0:SSi:140.0,3.0] ||  -> sum__dfg(additive_identity,u__dfg,additive_identity) product(multiplicative_inverse(u__dfg),b,a)*.
% 26.66/26.90  142[0:Res:141.1,18.0] ||  -> sum__dfg(additive_identity,u__dfg,additive_identity) product(b,multiplicative_inverse(u__dfg),a)*.
% 26.66/26.90  152[0:Res:17.2,15.0] defined(u) || product(v,w,u)* product(multiplicative_inverse(u),v,x)*+ -> sum__dfg(additive_identity,u,additive_identity) product(x,w,multiplicative_identity)*.
% 26.66/26.90  155[0:Res:16.1,15.0] defined(u) || product(v,w,u)*+ product(multiplicative_identity,v,x)* -> product(x,w,u)*.
% 26.66/26.90  161[1:Spt:142.0] ||  -> sum__dfg(additive_identity,u__dfg,additive_identity)*.
% 26.66/26.90  164[1:Res:161.0,13.0] ||  -> sum__dfg(u__dfg,additive_identity,additive_identity)*.
% 26.66/26.90  182[0:Res:16.1,14.0] defined(u) || product(v,u,w)*+ product(x,v,multiplicative_identity)* -> product(x,w,u)*.
% 26.66/26.90  300[0:Res:12.1,20.0] defined(u) || product(v,w,u)* product(x,w,additive_inverse(u))*+ sum__dfg(x,v,y)* -> product(y,w,additive_identity)*.
% 26.66/26.90  347[0:Res:94.1,37.0] defined(a) || product(v__dfg,u,multiplicative_identity) -> product(b,u,a)*.
% 26.66/26.90  357[0:SSi:347.0,1.0] || product(v__dfg,u,multiplicative_identity) -> product(b,u,a)*.
% 26.66/26.90  405[0:Res:357.1,18.0] || product(v__dfg,u,multiplicative_identity)*+ -> product(u,b,a)*.
% 26.66/26.90  429[0:Res:101.2,405.0] defined(v__dfg) ||  -> sum__dfg(additive_identity,v__dfg,additive_identity) product(multiplicative_inverse(v__dfg),b,a)*.
% 26.66/26.90  430[0:SSi:429.0,4.0] ||  -> sum__dfg(additive_identity,v__dfg,additive_identity) product(multiplicative_inverse(v__dfg),b,a)*.
% 26.66/26.90  434[0:Res:430.1,18.0] ||  -> sum__dfg(additive_identity,v__dfg,additive_identity) product(b,multiplicative_inverse(v__dfg),a)*.
% 26.66/26.90  436[2:Spt:434.0] ||  -> sum__dfg(additive_identity,v__dfg,additive_identity)*.
% 26.66/26.90  499[0:Res:16.1,53.0] defined(u__dfg) || product(u,a,multiplicative_identity)* -> product(u,b,u__dfg).
% 26.66/26.90  510[0:SSi:499.0,3.0] || product(u,a,multiplicative_identity)* -> product(u,b,u__dfg).
% 26.66/26.90  583[0:Res:16.1,40.0] defined(v__dfg) || product(u,a,multiplicative_identity)* -> product(u,b,v__dfg).
% 26.66/26.90  594[0:SSi:583.0,4.0] || product(u,a,multiplicative_identity)* -> product(u,b,v__dfg).
% 26.66/26.90  615[0:Res:73.0,510.0] ||  -> product(multiplicative_inverse(a),b,u__dfg)*.
% 26.66/26.90  670[0:Res:73.0,594.0] ||  -> product(multiplicative_inverse(a),b,v__dfg)*.
% 26.66/26.90  787[0:Res:94.1,62.0] defined(v__dfg) || product(u,multiplicative_identity,u__dfg)* product(multiplicative_identity,u,v__dfg)* -> .
% 26.66/26.90  790[0:SSi:787.0,4.0] || product(u,multiplicative_identity,u__dfg)*+ product(multiplicative_identity,u,v__dfg)* -> .
% 26.66/26.90  852[0:Res:94.1,63.0] defined(v__dfg) || product(v__dfg,u,multiplicative_identity)* product(u,u__dfg,multiplicative_identity)* -> .
% 26.66/26.90  855[0:SSi:852.0,4.0] || product(v__dfg,u,multiplicative_identity)*+ product(u,u__dfg,multiplicative_identity)* -> .
% 26.66/26.90  949[1:Res:164.0,130.1] defined(additive_identity) || sum__dfg(u,u__dfg,additive_identity)* -> sum__dfg(u,additive_identity,additive_identity).
% 26.66/26.90  955[1:Res:161.0,130.1] defined(u__dfg) || sum__dfg(u,additive_identity,additive_identity) -> sum__dfg(u,additive_identity,u__dfg)*.
% 26.66/26.90  956[2:Res:436.0,130.1] defined(v__dfg) || sum__dfg(u,additive_identity,additive_identity) -> sum__dfg(u,additive_identity,v__dfg)*.
% 26.66/26.90  960[1:SSi:949.0,22.0] || sum__dfg(u,u__dfg,additive_identity)* -> sum__dfg(u,additive_identity,additive_identity).
% 26.66/26.90  962[1:SSi:955.0,3.0] || sum__dfg(u,additive_identity,additive_identity) -> sum__dfg(u,additive_identity,u__dfg)*.
% 26.66/26.90  963[2:SSi:956.0,4.0] || sum__dfg(u,additive_identity,additive_identity) -> sum__dfg(u,additive_identity,v__dfg)*.
% 26.66/26.90  1059[0:Res:94.1,155.1] defined(u) defined(u) || product(multiplicative_identity,u,v)* -> product(v,multiplicative_identity,u)*.
% 26.66/26.90  1120[0:Obv:1059.0] defined(u) || product(multiplicative_identity,u,v)*+ -> product(v,multiplicative_identity,u)*.
% 26.66/26.90  1193[0:Res:51.0,182.1] defined(a) || product(u,u__dfg,multiplicative_identity) -> product(u,b,a)*.
% 26.66/26.90  1194[0:Res:38.0,182.1] defined(a) || product(u,v__dfg,multiplicative_identity) -> product(u,b,a)*.
% 26.66/26.90  1208[0:Res:129.0,182.1] defined(b) || product(u,multiplicative_identity,multiplicative_identity) -> product(u,b,b)*.
% 26.66/26.90  1264[0:SSi:1193.0,1.0] || product(u,u__dfg,multiplicative_identity) -> product(u,b,a)*.
% 26.66/26.90  1265[0:SSi:1194.0,1.0] || product(u,v__dfg,multiplicative_identity) -> product(u,b,a)*.
% 26.66/26.90  1266[0:SSi:1208.0,2.0] || product(u,multiplicative_identity,multiplicative_identity) -> product(u,b,b)*.
% 26.66/26.90  1496[1:Res:12.1,960.0] defined(u__dfg) ||  -> sum__dfg(additive_inverse(u__dfg),additive_identity,additive_identity)*.
% 26.66/26.90  1500[1:SSi:1496.0,3.0] ||  -> sum__dfg(additive_inverse(u__dfg),additive_identity,additive_identity)*.
% 26.66/26.90  1514[1:Res:1500.0,119.2] defined(u__dfg) || sum__dfg(additive_identity,u,u__dfg)* -> sum__dfg(additive_identity,u,additive_identity).
% 26.66/26.90  1515[1:SSi:1514.0,3.0] || sum__dfg(additive_identity,u,u__dfg)* -> sum__dfg(additive_identity,u,additive_identity).
% 26.66/26.90  1609[1:Res:962.1,13.0] || sum__dfg(u,additive_identity,additive_identity)*+ -> sum__dfg(additive_identity,u,u__dfg)*.
% 26.66/26.90  1683[2:Res:963.1,13.0] || sum__dfg(u,additive_identity,additive_identity)*+ -> sum__dfg(additive_identity,u,v__dfg)*.
% 26.66/26.90  1865[0:Res:1264.1,18.0] || product(u,u__dfg,multiplicative_identity)*+ -> product(b,u,a)*.
% 26.66/26.90  1883[0:Res:1265.1,18.0] || product(u,v__dfg,multiplicative_identity)*+ -> product(b,u,a)*.
% 26.66/26.90  1929[0:Res:1266.1,18.0] || product(u,multiplicative_identity,multiplicative_identity)*+ -> product(b,u,b)*.
% 26.66/26.90  1957[1:Res:12.1,1609.0] defined(additive_identity) ||  -> sum__dfg(additive_identity,additive_inverse(additive_identity),u__dfg)*.
% 26.66/26.90  1963[1:SSi:1957.0,22.0] ||  -> sum__dfg(additive_identity,additive_inverse(additive_identity),u__dfg)*.
% 26.66/26.90  2048[1:Res:1963.0,1515.0] ||  -> sum__dfg(additive_identity,additive_inverse(additive_identity),additive_identity)*.
% 26.66/26.90  2052[1:Res:1963.0,13.0] ||  -> sum__dfg(additive_inverse(additive_identity),additive_identity,u__dfg)*.
% 26.66/26.90  2085[1:Res:2048.0,13.0] ||  -> sum__dfg(additive_inverse(additive_identity),additive_identity,additive_identity)*.
% 26.66/26.90  2616[0:Res:615.0,152.2] defined(a) || product(b,u,a)* -> sum__dfg(additive_identity,a,additive_identity) product(u__dfg,u,multiplicative_identity).
% 26.66/26.90  2617[0:Res:670.0,152.2] defined(a) || product(b,u,a)* -> sum__dfg(additive_identity,a,additive_identity) product(v__dfg,u,multiplicative_identity).
% 26.66/26.90  2620[0:SSi:2616.0,1.0] || product(b,u,a)* -> sum__dfg(additive_identity,a,additive_identity) product(u__dfg,u,multiplicative_identity).
% 26.66/26.90  2621[0:MRR:2620.1,5.0] || product(b,u,a)* -> product(u__dfg,u,multiplicative_identity).
% 26.66/26.90  2622[0:SSi:2617.0,1.0] || product(b,u,a)* -> sum__dfg(additive_identity,a,additive_identity) product(v__dfg,u,multiplicative_identity).
% 26.66/26.90  2623[0:MRR:2622.1,5.0] || product(b,u,a)* -> product(v__dfg,u,multiplicative_identity).
% 26.66/26.90  3592[2:Res:2085.0,1683.0] ||  -> sum__dfg(additive_identity,additive_inverse(additive_identity),v__dfg)*.
% 26.66/26.90  3771[2:Res:3592.0,13.0] ||  -> sum__dfg(additive_inverse(additive_identity),additive_identity,v__dfg)*.
% 26.66/26.90  4060[0:Res:94.1,300.2] defined(additive_inverse(u)) defined(u) || product(v,multiplicative_identity,u) sum__dfg(additive_inverse(u),v,w)* -> product(w,multiplicative_identity,additive_identity).
% 26.66/26.90  4061[0:SSi:4060.0,23.1] defined(u) || product(v,multiplicative_identity,u) sum__dfg(additive_inverse(u),v,w)* -> product(w,multiplicative_identity,additive_identity).
% 26.66/26.90  4080[0:Res:17.2,1865.0] defined(u__dfg) ||  -> sum__dfg(additive_identity,u__dfg,additive_identity) product(b,multiplicative_inverse(u__dfg),a)*.
% 26.66/26.90  4081[0:Res:17.2,1883.0] defined(v__dfg) ||  -> sum__dfg(additive_identity,v__dfg,additive_identity) product(b,multiplicative_inverse(v__dfg),a)*.
% 26.66/26.90  4082[0:Res:17.2,1929.0] defined(multiplicative_identity) ||  -> sum__dfg(additive_identity,multiplicative_identity,additive_identity) product(b,multiplicative_inverse(multiplicative_identity),b)*.
% 26.66/26.90  4085[0:SSi:4082.0,25.0] ||  -> sum__dfg(additive_identity,multiplicative_identity,additive_identity) product(b,multiplicative_inverse(multiplicative_identity),b)*.
% 26.66/26.90  4250[0:Res:4085.1,18.0] ||  -> sum__dfg(additive_identity,multiplicative_identity,additive_identity) product(multiplicative_inverse(multiplicative_identity),b,b)*.
% 26.66/26.90  4262[3:Spt:4250.0] ||  -> sum__dfg(additive_identity,multiplicative_identity,additive_identity)*.
% 26.66/26.90  4269[3:Res:4262.0,130.1] defined(multiplicative_identity) || sum__dfg(u,additive_identity,additive_identity)* -> sum__dfg(u,additive_identity,multiplicative_identity).
% 26.66/26.90  4276[3:SSi:4269.0,25.0] || sum__dfg(u,additive_identity,additive_identity)* -> sum__dfg(u,additive_identity,multiplicative_identity).
% 26.66/26.90  5261[0:Res:357.1,2621.0] || product(v__dfg,u,multiplicative_identity) -> product(u__dfg,u,multiplicative_identity)*.
% 26.66/26.90  5813[3:Res:85.1,4276.0] defined(additive_identity) ||  -> sum__dfg(additive_identity,additive_identity,multiplicative_identity)*.
% 26.66/26.90  5819[3:SSi:5813.0,22.0] ||  -> sum__dfg(additive_identity,additive_identity,multiplicative_identity)*.
% 26.66/26.90  5820[3:MRR:5819.0,34.0] ||  -> .
% 26.66/26.90  5825[3:Spt:5820.0,4250.0,4262.0] || sum__dfg(additive_identity,multiplicative_identity,additive_identity)* -> .
% 26.66/26.90  5826[3:Spt:5820.0,4250.1] ||  -> product(multiplicative_inverse(multiplicative_identity),b,b)*.
% 26.66/26.90  5867[3:Res:26.2,5825.0] defined(multiplicative_identity) ||  -> defined(multiplicative_inverse(multiplicative_identity))*.
% 26.66/26.90  5868[3:SSi:5867.0,25.0] ||  -> defined(multiplicative_inverse(multiplicative_identity))*.
% 26.66/26.90  18431[0:Res:5261.1,18.0] || product(v__dfg,u,multiplicative_identity)* -> product(u,u__dfg,multiplicative_identity)*.
% 26.66/26.90  18466[0:MRR:18431.1,855.1] || product(v__dfg,u,multiplicative_identity)* -> .
% 26.66/26.90  18467[0:MRR:2623.1,18466.0] || product(b,u,a)* -> .
% 26.66/26.90  21771[0:Res:12.1,4061.2] defined(u) defined(u) || product(u,multiplicative_identity,u)* -> product(additive_identity,multiplicative_identity,additive_identity)*.
% 26.66/26.90  21817[1:Res:2052.0,4061.2] defined(additive_identity) || product(additive_identity,multiplicative_identity,additive_identity) -> product(u__dfg,multiplicative_identity,additive_identity)*.
% 26.66/26.90  21820[2:Res:3771.0,4061.2] defined(additive_identity) || product(additive_identity,multiplicative_identity,additive_identity) -> product(v__dfg,multiplicative_identity,additive_identity)*.
% 26.66/26.90  21899[1:SSi:21817.0,22.0] || product(additive_identity,multiplicative_identity,additive_identity) -> product(u__dfg,multiplicative_identity,additive_identity)*.
% 26.66/26.90  21902[2:SSi:21820.0,22.0] || product(additive_identity,multiplicative_identity,additive_identity) -> product(v__dfg,multiplicative_identity,additive_identity)*.
% 26.66/26.90  21954[0:Obv:21771.0] defined(u) || product(u,multiplicative_identity,u)* -> product(additive_identity,multiplicative_identity,additive_identity)*.
% 26.66/26.90  21955[0:MRR:21954.1,94.1] defined(u) ||  -> product(additive_identity,multiplicative_identity,additive_identity)*.
% 26.66/26.90  23384[3:EmS:21955.0,5868.0] ||  -> product(additive_identity,multiplicative_identity,additive_identity)*.
% 26.66/26.90  23393[3:MRR:21899.0,23384.0] ||  -> product(u__dfg,multiplicative_identity,additive_identity)*.
% 26.66/26.90  23394[3:MRR:21902.0,23384.0] ||  -> product(v__dfg,multiplicative_identity,additive_identity)*.
% 26.66/26.90  23437[3:Res:23393.0,18.0] ||  -> product(multiplicative_identity,u__dfg,additive_identity)*.
% 26.66/26.90  23472[3:Res:23394.0,18.0] ||  -> product(multiplicative_identity,v__dfg,additive_identity)*.
% 26.66/26.90  23606[3:Res:23437.0,1120.1] defined(u__dfg) ||  -> product(additive_identity,multiplicative_identity,u__dfg)*.
% 26.66/26.90  23613[3:SSi:23606.0,3.0] ||  -> product(additive_identity,multiplicative_identity,u__dfg)*.
% 26.66/26.90  23635[3:Res:23472.0,1120.1] defined(v__dfg) ||  -> product(additive_identity,multiplicative_identity,v__dfg)*.
% 26.66/26.90  23649[3:SSi:23635.0,4.0] ||  -> product(additive_identity,multiplicative_identity,v__dfg)*.
% 26.66/26.90  23698[3:Res:23613.0,790.0] || product(multiplicative_identity,additive_identity,v__dfg)* -> .
% 26.66/26.90  23768[3:Res:23649.0,18.0] ||  -> product(multiplicative_identity,additive_identity,v__dfg)*.
% 26.66/26.90  23782[3:MRR:23768.0,23698.0] ||  -> .
% 26.66/26.90  23791[2:Spt:23782.0,434.0,436.0] || sum__dfg(additive_identity,v__dfg,additive_identity)* -> .
% 26.66/26.90  23792[2:Spt:23782.0,434.1] ||  -> product(b,multiplicative_inverse(v__dfg),a)*.
% 26.66/26.90  23802[0:SSi:4081.0,4.0] ||  -> sum__dfg(additive_identity,v__dfg,additive_identity) product(b,multiplicative_inverse(v__dfg),a)*.
% 26.66/26.90  23803[0:MRR:23802.1,18467.0] ||  -> sum__dfg(additive_identity,v__dfg,additive_identity)*.
% 26.66/26.90  23804[2:MRR:23803.0,23791.0] ||  -> .
% 26.66/26.90  23844[1:Spt:23804.0,142.0,161.0] || sum__dfg(additive_identity,u__dfg,additive_identity)* -> .
% 27.32/27.55  23845[1:Spt:23804.0,142.1] ||  -> product(b,multiplicative_inverse(u__dfg),a)*.
% 27.32/27.55  23857[0:SSi:4080.0,3.0] ||  -> sum__dfg(additive_identity,u__dfg,additive_identity) product(b,multiplicative_inverse(u__dfg),a)*.
% 27.32/27.55  23858[0:MRR:23857.1,18467.0] ||  -> sum__dfg(additive_identity,u__dfg,additive_identity)*.
% 27.32/27.55  23859[1:MRR:23858.0,23844.0] ||  -> .
% 27.32/27.55  % SZS output end Refutation
% 27.32/27.55  Formulae used in the proof : a_is_defined b_is_defined u_is_defined v_is_defined not_sum_5 product_6 product_7 not_product_8 associativity_addition_1 associativity_addition_2 existence_of_identity_addition existence_of_inverse_addition commutativity_addition associativity_multiplication_1 associativity_multiplication_2 existence_of_identity_multiplication existence_of_inverse_multiplication commutativity_multiplication distributivity_2 well_definedness_of_additive_identity well_definedness_of_additive_inverse well_definedness_of_multiplicative_identity well_definedness_of_multiplicative_inverse different_identities
% 27.32/27.55  
%------------------------------------------------------------------------------