TSTP Solution File: SEU238+3 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : SEU238+3 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n005.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 14:35:24 EDT 2022

% Result   : Theorem 0.69s 0.91s
% Output   : Refutation 0.77s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : SEU238+3 : TPTP v8.1.0. Released v3.2.0.
% 0.03/0.13  % Command  : run_spass %d %s
% 0.13/0.34  % Computer : n005.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 600
% 0.13/0.34  % DateTime : Sun Jun 19 09:34:23 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.69/0.91  
% 0.69/0.91  SPASS V 3.9 
% 0.69/0.91  SPASS beiseite: Proof found.
% 0.69/0.91  % SZS status Theorem
% 0.69/0.91  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.69/0.91  SPASS derived 3537 clauses, backtracked 474 clauses, performed 24 splits and kept 1527 clauses.
% 0.69/0.91  SPASS allocated 119565 KBytes.
% 0.69/0.91  SPASS spent	0:00:00.50 on the problem.
% 0.69/0.91  		0:00:00.04 for the input.
% 0.69/0.91  		0:00:00.03 for the FLOTTER CNF translation.
% 0.69/0.91  		0:00:00.06 for inferences.
% 0.69/0.91  		0:00:00.01 for the backtracking.
% 0.69/0.91  		0:00:00.31 for the reduction.
% 0.69/0.91  
% 0.69/0.91  
% 0.69/0.91  Here is a proof with depth 12, length 161 :
% 0.69/0.91  % SZS output start Refutation
% 0.69/0.91  1[0:Inp] ||  -> ordinal(skc16)*.
% 0.69/0.91  2[0:Inp] ||  -> ordinal(skc15)*.
% 0.69/0.91  54[0:Inp] ||  -> ordinal(skf3(u))*.
% 0.69/0.91  55[0:Inp] ||  -> SkP0(skc15) being_limit_ordinal(skc15)*.
% 0.69/0.91  59[0:Inp] ||  -> in(u,succ(u))*.
% 0.69/0.91  61[0:Inp] ordinal(u) ||  -> epsilon_transitive(u)*.
% 0.69/0.91  62[0:Inp] ordinal(u) ||  -> epsilon_connected(u)*.
% 0.69/0.91  69[0:Inp] ||  -> SkP0(skc15) equal(succ(skc16),skc15)**.
% 0.69/0.91  70[0:Inp] SkP0(u) being_limit_ordinal(u) ||  -> .
% 0.69/0.91  71[0:Inp] ordinal(u) ||  -> epsilon_transitive(succ(u))*.
% 0.69/0.91  72[0:Inp] ordinal(u) ||  -> epsilon_connected(succ(u))*.
% 0.69/0.91  73[0:Inp] ordinal(u) ||  -> ordinal(succ(u))*.
% 0.69/0.91  74[0:Inp] ordinal(u) ||  -> ordinal_subset(u,u)*.
% 0.69/0.91  78[0:Inp] || proper_subset(u,v) -> subset(u,v)*.
% 0.69/0.91  83[0:Inp] empty(u) || in(v,u)* -> .
% 0.69/0.91  84[0:Inp] || in(u,v)*+ in(v,u)* -> .
% 0.69/0.91  85[0:Inp] || proper_subset(u,v)*+ proper_subset(v,u)* -> .
% 0.69/0.91  89[0:Inp] || subset(u,v) -> element(u,powerset(v))*.
% 0.69/0.91  90[0:Inp] || element(u,v)* -> empty(v) in(u,v).
% 0.69/0.91  91[0:Inp] ordinal(u) ||  -> being_limit_ordinal(u) in(skf3(u),u)*.
% 0.69/0.91  93[0:Inp] || subset(u,v)* -> proper_subset(u,v) equal(u,v).
% 0.69/0.91  95[0:Inp] SkP0(u) ordinal(v) || equal(u,succ(v))* -> .
% 0.69/0.91  97[0:Inp] ordinal(u) || in(succ(skf3(u)),u)* -> being_limit_ordinal(u).
% 0.69/0.91  98[0:Inp] ordinal(u) ordinal(v) ||  -> ordinal_subset(u,v)* ordinal_subset(v,u)*.
% 0.69/0.91  99[0:Inp] || in(u,v)* element(v,powerset(w))*+ -> element(u,w)*.
% 0.69/0.91  101[0:Inp] ordinal(u) ordinal(v) || ordinal_subset(v,u) -> subset(v,u)*.
% 0.69/0.91  103[0:Inp] ordinal(u) epsilon_transitive(v) || proper_subset(v,u)* -> in(v,u).
% 0.69/0.91  104[0:Inp] ordinal(u) ordinal(v) || in(v,u) -> ordinal_subset(succ(v),u)*.
% 0.69/0.91  105[0:Inp] ordinal(u) ordinal(v) || ordinal_subset(succ(v),u)* -> in(v,u).
% 0.69/0.91  106[0:Inp] ordinal(u) ordinal(v) being_limit_ordinal(u) || in(v,u) -> in(succ(v),u)*.
% 0.69/0.91  108[0:Res:2.0,106.2] ordinal(u) being_limit_ordinal(skc15) || in(u,skc15) -> in(succ(u),skc15)*.
% 0.69/0.91  110[0:Res:2.0,105.0] ordinal(u) || ordinal_subset(succ(skc15),u)* -> in(skc15,u).
% 0.69/0.91  111[0:Res:2.0,101.0] ordinal(u) || ordinal_subset(skc15,u) -> subset(skc15,u)*.
% 0.69/0.91  113[0:Res:2.0,98.0] ordinal(u) ||  -> ordinal_subset(u,skc15)* ordinal_subset(skc15,u)*.
% 0.69/0.91  115[0:Res:2.0,97.0] || in(succ(skf3(skc15)),skc15)* -> being_limit_ordinal(skc15).
% 0.69/0.91  116[0:Res:2.0,91.0] ||  -> being_limit_ordinal(skc15) in(skf3(skc15),skc15)*.
% 0.69/0.91  117[0:Res:2.0,71.0] ||  -> epsilon_transitive(succ(skc15))*.
% 0.69/0.91  118[0:Res:2.0,72.0] ||  -> epsilon_connected(succ(skc15))*.
% 0.69/0.91  119[0:Res:2.0,73.0] ||  -> ordinal(succ(skc15))*.
% 0.69/0.91  120[0:Res:2.0,74.0] ||  -> ordinal_subset(skc15,skc15)*.
% 0.69/0.91  121[0:Res:2.0,61.0] ||  -> epsilon_transitive(skc15)*.
% 0.69/0.91  122[0:Res:2.0,62.0] ||  -> epsilon_connected(skc15)*.
% 0.69/0.91  123[0:Res:2.0,106.1] ordinal(u) being_limit_ordinal(u) || in(skc15,u) -> in(succ(skc15),u)*.
% 0.69/0.91  125[0:Res:2.0,105.1] ordinal(u) || ordinal_subset(succ(u),skc15)* -> in(u,skc15).
% 0.69/0.91  126[0:Res:2.0,101.1] ordinal(u) || ordinal_subset(u,skc15) -> subset(u,skc15)*.
% 0.69/0.91  128[0:Res:2.0,103.1] epsilon_transitive(u) || proper_subset(u,skc15)* -> in(u,skc15).
% 0.69/0.91  136[0:Res:1.0,95.0] SkP0(u) || equal(u,succ(skc16))* -> .
% 0.69/0.91  165[0:Res:1.0,108.1] being_limit_ordinal(skc15) || in(skc16,skc15) -> in(succ(skc16),skc15)*.
% 0.69/0.91  170[0:Res:1.0,125.0] || ordinal_subset(succ(skc16),skc15)* -> in(skc16,skc15).
% 0.69/0.91  188[0:Res:2.0,123.1] being_limit_ordinal(skc15) || in(skc15,skc15) -> in(succ(skc15),skc15)*.
% 0.69/0.91  194[0:Res:2.0,125.0] || ordinal_subset(succ(skc15),skc15)* -> in(skc15,skc15).
% 0.69/0.91  212[1:Spt:69.1] ||  -> equal(succ(skc16),skc15)**.
% 0.69/0.91  218[1:Rew:212.0,170.0] || ordinal_subset(skc15,skc15)* -> in(skc16,skc15).
% 0.69/0.91  222[1:Rew:212.0,136.1] SkP0(u) || equal(u,skc15)* -> .
% 0.69/0.91  224[1:Rew:212.0,165.2] being_limit_ordinal(skc15) || in(skc16,skc15)* -> in(skc15,skc15).
% 0.69/0.91  226[1:MRR:218.0,120.0] ||  -> in(skc16,skc15)*.
% 0.69/0.91  227[1:MRR:224.1,226.0] being_limit_ordinal(skc15) ||  -> in(skc15,skc15)*.
% 0.69/0.91  228[1:MRR:188.1,227.1] being_limit_ordinal(skc15) ||  -> in(succ(skc15),skc15)*.
% 0.69/0.91  230[2:Spt:55.1] ||  -> being_limit_ordinal(skc15)*.
% 0.69/0.91  233[2:MRR:228.0,230.0] ||  -> in(succ(skc15),skc15)*.
% 0.69/0.91  284[0:Res:59.0,83.1] empty(succ(u)) ||  -> .
% 0.69/0.91  336[0:Res:59.0,84.0] || in(succ(u),u)* -> .
% 0.69/0.91  343[2:UnC:336.0,233.0] ||  -> .
% 0.69/0.91  344[2:Spt:343.0,55.1,230.0] || being_limit_ordinal(skc15)* -> .
% 0.69/0.91  345[2:Spt:343.0,55.0] ||  -> SkP0(skc15)*.
% 0.69/0.91  351[2:EmS:222.0,345.0] || equal(skc15,skc15)* -> .
% 0.69/0.91  352[2:Obv:351.0] ||  -> .
% 0.69/0.91  353[1:Spt:352.0,69.1,212.0] || equal(succ(skc16),skc15)** -> .
% 0.69/0.91  354[1:Spt:352.0,69.0] ||  -> SkP0(skc15)*.
% 0.69/0.91  357[2:Spt:116.0] ||  -> being_limit_ordinal(skc15)*.
% 0.69/0.91  362[2:EmS:70.0,70.1,354.0,357.0] ||  -> .
% 0.69/0.91  363[2:Spt:362.0,116.0,357.0] || being_limit_ordinal(skc15)* -> .
% 0.69/0.91  364[2:Spt:362.0,116.1] ||  -> in(skf3(skc15),skc15)*.
% 0.69/0.91  365[2:MRR:115.1,363.0] || in(succ(skf3(skc15)),skc15)* -> .
% 0.69/0.91  367[2:Res:364.0,83.1] empty(skc15) ||  -> .
% 0.69/0.91  482[0:Res:98.2,194.0] ordinal(succ(skc15)) ordinal(skc15) ||  -> ordinal_subset(skc15,succ(skc15))* in(skc15,skc15).
% 0.69/0.91  492[1:SSi:482.1,482.0,2.0,122.0,121.0,354.0,118.0,117.0,119.0] ||  -> ordinal_subset(skc15,succ(skc15))* in(skc15,skc15).
% 0.69/0.91  503[0:Res:89.1,99.1] || subset(u,v)*+ in(w,u)* -> element(w,v)*.
% 0.69/0.91  506[3:Spt:492.1] ||  -> in(skc15,skc15)*.
% 0.69/0.91  509[3:Res:506.0,84.0] || in(skc15,skc15)* -> .
% 0.69/0.91  511[3:MRR:509.0,506.0] ||  -> .
% 0.69/0.91  512[3:Spt:511.0,492.1,506.0] || in(skc15,skc15)* -> .
% 0.69/0.91  513[3:Spt:511.0,492.0] ||  -> ordinal_subset(skc15,succ(skc15))*.
% 0.69/0.91  515[0:Res:101.3,93.0] ordinal(u) ordinal(v) || ordinal_subset(v,u)* -> proper_subset(v,u) equal(v,u).
% 0.69/0.91  571[0:Res:111.2,93.0] ordinal(u) || ordinal_subset(skc15,u)* -> proper_subset(skc15,u) equal(skc15,u).
% 0.69/0.91  613[0:Res:106.4,336.0] ordinal(u) ordinal(u) being_limit_ordinal(u) || in(u,u)* -> .
% 0.69/0.91  616[0:Obv:613.0] ordinal(u) being_limit_ordinal(u) || in(u,u)* -> .
% 0.69/0.91  684[0:Res:98.2,110.1] ordinal(succ(skc15)) ordinal(u) ordinal(u) ||  -> ordinal_subset(u,succ(skc15))* in(skc15,u).
% 0.69/0.91  693[0:Obv:684.1] ordinal(succ(skc15)) ordinal(u) ||  -> ordinal_subset(u,succ(skc15))* in(skc15,u).
% 0.69/0.91  694[0:SSi:693.0,118.0,117.0,119.0] ordinal(u) ||  -> ordinal_subset(u,succ(skc15))* in(skc15,u).
% 0.69/0.91  696[0:Res:694.1,105.2] ordinal(succ(u)) ordinal(succ(skc15)) ordinal(u) ||  -> in(skc15,succ(u))* in(u,succ(skc15))*.
% 0.69/0.91  699[0:SSi:696.1,696.0,118.1,117.1,119.1,72.0,71.0,73.0] ordinal(u) ||  -> in(skc15,succ(u))* in(u,succ(skc15))*.
% 0.69/0.91  843[0:Res:78.1,503.0] || proper_subset(u,v)*+ in(w,u)* -> element(w,v)*.
% 0.69/0.91  844[0:Res:126.2,503.0] ordinal(u) || ordinal_subset(u,skc15)*+ in(v,u)* -> element(v,skc15)*.
% 0.69/0.91  914[0:Res:699.2,336.0] ordinal(succ(succ(skc15))) ||  -> in(skc15,succ(succ(succ(skc15))))*.
% 0.69/0.91  917[0:SSi:914.0,72.0,118.0,117.0,119.1,71.0,118.0,117.0,119.1,73.0,118.0,117.0,119.1] ||  -> in(skc15,succ(succ(succ(skc15))))*.
% 0.69/0.91  958[0:Res:123.3,616.2] ordinal(succ(skc15)) being_limit_ordinal(succ(skc15)) ordinal(succ(skc15)) being_limit_ordinal(succ(skc15)) || in(skc15,succ(skc15))* -> .
% 0.69/0.91  963[0:Obv:958.1] ordinal(succ(skc15)) being_limit_ordinal(succ(skc15)) || in(skc15,succ(skc15))* -> .
% 0.69/0.91  964[0:SSi:963.0,118.0,117.0,119.0] being_limit_ordinal(succ(skc15)) || in(skc15,succ(skc15))* -> .
% 0.69/0.91  965[0:MRR:964.1,59.0] being_limit_ordinal(succ(skc15)) ||  -> .
% 0.69/0.91  1021[0:Res:113.2,515.2] ordinal(u) ordinal(u) ordinal(skc15) ||  -> ordinal_subset(u,skc15)* proper_subset(skc15,u) equal(skc15,u).
% 0.69/0.91  1024[0:Res:104.3,515.2] ordinal(u) ordinal(v) ordinal(u) ordinal(succ(v)) || in(v,u) -> proper_subset(succ(v),u)* equal(succ(v),u).
% 0.69/0.91  1032[3:Res:513.0,515.2] ordinal(succ(skc15)) ordinal(skc15) ||  -> proper_subset(skc15,succ(skc15))* equal(succ(skc15),skc15).
% 0.69/0.91  1044[3:SSi:1032.1,1032.0,2.0,122.0,121.0,354.0,118.0,117.0,119.0] ||  -> proper_subset(skc15,succ(skc15))* equal(succ(skc15),skc15).
% 0.69/0.91  1049[0:Obv:1021.0] ordinal(u) ordinal(skc15) ||  -> ordinal_subset(u,skc15)* proper_subset(skc15,u) equal(skc15,u).
% 0.69/0.91  1050[1:SSi:1049.1,2.0,122.0,121.0,354.0] ordinal(u) ||  -> ordinal_subset(u,skc15)* proper_subset(skc15,u) equal(skc15,u).
% 0.69/0.91  1077[0:Obv:1024.0] ordinal(u) ordinal(v) ordinal(succ(u)) || in(u,v) -> proper_subset(succ(u),v)* equal(succ(u),v).
% 0.77/0.94  1078[0:SSi:1077.2,72.1,71.1,73.1] ordinal(u) ordinal(v) || in(u,v) -> proper_subset(succ(u),v)* equal(succ(u),v).
% 0.77/0.94  1377[4:Spt:1044.1] ||  -> equal(succ(skc15),skc15)**.
% 0.77/0.94  1392[4:Rew:1377.0,917.0] ||  -> in(skc15,succ(succ(skc15)))*.
% 0.77/0.94  1416[4:Rew:1377.0,1392.0,1377.0,1392.0] ||  -> in(skc15,skc15)*.
% 0.77/0.94  1417[4:MRR:1416.0,512.0] ||  -> .
% 0.77/0.94  1421[4:Spt:1417.0,1044.1,1377.0] || equal(succ(skc15),skc15)** -> .
% 0.77/0.94  1422[4:Spt:1417.0,1044.0] ||  -> proper_subset(skc15,succ(skc15))*.
% 0.77/0.94  2728[4:Res:1422.0,843.0] || in(u,skc15) -> element(u,succ(skc15))*.
% 0.77/0.94  2734[4:Res:2728.1,90.0] || in(u,skc15) -> empty(succ(skc15)) in(u,succ(skc15))*.
% 0.77/0.94  2735[4:MRR:2734.1,284.0] || in(u,skc15) -> in(u,succ(skc15))*.
% 0.77/0.94  2758[1:Res:1050.1,515.2] ordinal(u) ordinal(skc15) ordinal(u) ||  -> proper_subset(skc15,u)* equal(skc15,u) proper_subset(u,skc15)* equal(u,skc15).
% 0.77/0.94  2765[1:Obv:2758.4] ordinal(skc15) ordinal(u) ||  -> proper_subset(skc15,u)* proper_subset(u,skc15)* equal(u,skc15).
% 0.77/0.94  2766[1:SSi:2765.0,354.0,121.0,122.0,2.0] ordinal(u) ||  -> proper_subset(skc15,u)* proper_subset(u,skc15)* equal(u,skc15).
% 0.77/0.94  2771[4:Res:2735.1,97.1] ordinal(succ(skc15)) || in(succ(skf3(succ(skc15))),skc15)* -> being_limit_ordinal(succ(skc15)).
% 0.77/0.94  2773[4:SSi:2771.0,72.0,354.0,121.0,122.0,2.1,71.0,354.0,121.0,122.0,2.1,73.0,354.0,121.0,122.0,2.1] || in(succ(skf3(succ(skc15))),skc15)* -> being_limit_ordinal(succ(skc15)).
% 0.77/0.94  2774[4:MRR:2773.1,965.0] || in(succ(skf3(succ(skc15))),skc15)* -> .
% 0.77/0.94  3008[1:Res:2766.2,128.1] ordinal(u) epsilon_transitive(u) ||  -> proper_subset(skc15,u)* equal(u,skc15) in(u,skc15).
% 0.77/0.94  3018[1:SSi:3008.1,61.1] ordinal(u) ||  -> proper_subset(skc15,u)* equal(u,skc15) in(u,skc15).
% 0.77/0.94  3154[1:Res:3018.1,103.2] ordinal(u) ordinal(u) epsilon_transitive(skc15) ||  -> equal(u,skc15) in(u,skc15)* in(skc15,u)*.
% 0.77/0.94  3160[1:Obv:3154.0] ordinal(u) epsilon_transitive(skc15) ||  -> equal(u,skc15) in(u,skc15)* in(skc15,u)*.
% 0.77/0.94  3161[1:SSi:3160.1,354.0,121.0,122.0,2.0] ordinal(u) ||  -> equal(u,skc15) in(u,skc15)* in(skc15,u)*.
% 0.77/0.94  3197[2:Res:3161.2,365.0] ordinal(succ(skf3(skc15))) ||  -> equal(succ(skf3(skc15)),skc15) in(skc15,succ(skf3(skc15)))*.
% 0.77/0.94  3198[4:Res:3161.2,2774.0] ordinal(succ(skf3(succ(skc15)))) ||  -> equal(succ(skf3(succ(skc15))),skc15) in(skc15,succ(skf3(succ(skc15))))*.
% 0.77/0.94  3206[2:SSi:3197.0,72.0,54.0,354.0,121.0,122.0,2.1,71.0,54.0,354.0,121.0,122.0,2.1,73.0,54.0,354.0,121.0,122.0,2.1] ||  -> equal(succ(skf3(skc15)),skc15) in(skc15,succ(skf3(skc15)))*.
% 0.77/0.94  3207[4:SSi:3198.0,72.0,54.0,72.0,354.0,121.1,122.0,2.0,71.0,354.0,121.1,122.0,2.0,73.0,354.0,121.1,122.0,2.1,71.0,54.0,72.0,354.0,121.1,122.0,2.0,71.0,354.0,121.1,122.0,2.0,73.0,354.0,121.1,122.0,2.1,73.0,54.0,72.0,354.0,121.1,122.0,2.0,71.0,354.0,121.1,122.0,2.0,73.0,354.0,121.1,122.0,2.1] ||  -> equal(succ(skf3(succ(skc15))),skc15) in(skc15,succ(skf3(succ(skc15))))*.
% 0.77/0.94  3209[5:Spt:3206.0] ||  -> equal(succ(skf3(skc15)),skc15)**.
% 0.77/0.94  3236[5:SpL:3209.0,95.2] SkP0(u) ordinal(skf3(skc15)) || equal(u,skc15)* -> .
% 0.77/0.94  3239[5:SSi:3236.1,54.0,354.0,121.0,122.0,2.0] SkP0(u) || equal(u,skc15)* -> .
% 0.77/0.94  3247[5:EmS:3239.0,354.0] || equal(skc15,skc15)* -> .
% 0.77/0.94  3248[5:Obv:3247.0] ||  -> .
% 0.77/0.94  3249[5:Spt:3248.0,3206.0,3209.0] || equal(succ(skf3(skc15)),skc15)** -> .
% 0.77/0.94  3250[5:Spt:3248.0,3206.1] ||  -> in(skc15,succ(skf3(skc15)))*.
% 0.77/0.94  3277[0:Res:113.1,844.1] ordinal(u) ordinal(u) || in(v,u)* -> ordinal_subset(skc15,u)* element(v,skc15)*.
% 0.77/0.94  3282[0:Obv:3277.0] ordinal(u) || in(v,u)*+ -> ordinal_subset(skc15,u)* element(v,skc15)*.
% 0.77/0.94  3290[6:Spt:3207.0] ||  -> equal(succ(skf3(succ(skc15))),skc15)**.
% 0.77/0.94  3320[6:SpL:3290.0,97.1] ordinal(succ(skc15)) || in(skc15,succ(skc15))* -> being_limit_ordinal(succ(skc15)).
% 0.77/0.94  3324[6:SSi:3320.0,72.0,354.0,121.0,122.0,2.1,71.0,354.0,121.0,122.0,2.1,73.0,354.0,121.0,122.0,2.1] || in(skc15,succ(skc15))* -> being_limit_ordinal(succ(skc15)).
% 0.77/0.94  3325[6:MRR:3324.0,3324.1,59.0,965.0] ||  -> .
% 0.77/0.94  3332[6:Spt:3325.0,3207.0,3290.0] || equal(succ(skf3(succ(skc15))),skc15)** -> .
% 0.77/0.94  3333[6:Spt:3325.0,3207.1] ||  -> in(skc15,succ(skf3(succ(skc15))))*.
% 0.77/0.94  4500[5:Res:3250.0,3282.1] ordinal(succ(skf3(skc15))) ||  -> ordinal_subset(skc15,succ(skf3(skc15)))* element(skc15,skc15).
% 0.77/0.94  4504[5:SSi:4500.0,72.0,54.0,354.0,121.0,122.0,2.1,71.0,54.0,354.0,121.0,122.0,2.1,73.0,54.0,354.0,121.0,122.0,2.1] ||  -> ordinal_subset(skc15,succ(skf3(skc15)))* element(skc15,skc15).
% 0.77/0.94  4539[7:Spt:4504.0] ||  -> ordinal_subset(skc15,succ(skf3(skc15)))*.
% 0.77/0.94  4543[7:Res:4539.0,571.1] ordinal(succ(skf3(skc15))) ||  -> proper_subset(skc15,succ(skf3(skc15)))* equal(succ(skf3(skc15)),skc15).
% 0.77/0.94  4545[7:SSi:4543.0,72.0,54.0,354.0,121.0,122.0,2.1,71.0,54.0,354.0,121.0,122.0,2.1,73.0,54.0,354.0,121.0,122.0,2.1] ||  -> proper_subset(skc15,succ(skf3(skc15)))* equal(succ(skf3(skc15)),skc15).
% 0.77/0.94  4546[7:MRR:4545.1,3249.0] ||  -> proper_subset(skc15,succ(skf3(skc15)))*.
% 0.77/0.94  4552[7:Res:4546.0,85.0] || proper_subset(succ(skf3(skc15)),skc15)* -> .
% 0.77/0.94  4562[7:Res:1078.3,4552.0] ordinal(skf3(skc15)) ordinal(skc15) || in(skf3(skc15),skc15)* -> equal(succ(skf3(skc15)),skc15).
% 0.77/0.94  4565[7:SSi:4562.1,4562.0,354.0,121.0,122.0,2.0,54.0,354.0,121.0,122.0,2.0] || in(skf3(skc15),skc15)* -> equal(succ(skf3(skc15)),skc15).
% 0.77/0.94  4566[7:MRR:4565.0,4565.1,364.0,3249.0] ||  -> .
% 0.77/0.94  4567[7:Spt:4566.0,4504.0,4539.0] || ordinal_subset(skc15,succ(skf3(skc15)))* -> .
% 0.77/0.94  4568[7:Spt:4566.0,4504.1] ||  -> element(skc15,skc15)*.
% 0.77/0.94  4569[7:Res:4568.0,90.0] ||  -> empty(skc15) in(skc15,skc15)*.
% 0.77/0.94  4570[7:MRR:4569.0,4569.1,367.0,512.0] ||  -> .
% 0.77/0.94  % SZS output end Refutation
% 0.77/0.94  Formulae used in the proof : t42_ordinal1 rc3_ordinal1 t41_ordinal1 t10_ordinal1 cc1_ordinal1 fc3_ordinal1 reflexivity_r1_ordinal1 d8_xboole_0 t7_boole antisymmetry_r2_hidden antisymmetry_r2_xboole_0 t3_subset t2_subset connectedness_r1_ordinal1 t4_subset redefinition_r1_ordinal1 t21_ordinal1 t33_ordinal1
% 0.77/0.94  
%------------------------------------------------------------------------------