TSTP Solution File: GRP503-1 by Prover9---1109a

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Prover9---1109a
% Problem  : GRP503-1 : TPTP v8.1.0. Released v2.6.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_prover9 %d %s

% Computer : n013.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 11:19:22 EDT 2022

% Result   : Unsatisfiable 1.11s 1.43s
% Output   : Refutation 1.11s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.13  % Problem  : GRP503-1 : TPTP v8.1.0. Released v2.6.0.
% 0.04/0.14  % Command  : tptp2X_and_run_prover9 %d %s
% 0.13/0.35  % Computer : n013.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 : Tue Jun 14 13:49:59 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 1.11/1.43  ============================== Prover9 ===============================
% 1.11/1.43  Prover9 (32) version 2009-11A, November 2009.
% 1.11/1.43  Process 17981 was started by sandbox on n013.cluster.edu,
% 1.11/1.43  Tue Jun 14 13:49:59 2022
% 1.11/1.43  The command was "/export/starexec/sandbox/solver/bin/prover9 -t 300 -f /tmp/Prover9_17828_n013.cluster.edu".
% 1.11/1.43  ============================== end of head ===========================
% 1.11/1.43  
% 1.11/1.43  ============================== INPUT =================================
% 1.11/1.43  
% 1.11/1.43  % Reading from file /tmp/Prover9_17828_n013.cluster.edu
% 1.11/1.43  
% 1.11/1.43  set(prolog_style_variables).
% 1.11/1.43  set(auto2).
% 1.11/1.43      % set(auto2) -> set(auto).
% 1.11/1.43      % set(auto) -> set(auto_inference).
% 1.11/1.43      % set(auto) -> set(auto_setup).
% 1.11/1.43      % set(auto_setup) -> set(predicate_elim).
% 1.11/1.43      % set(auto_setup) -> assign(eq_defs, unfold).
% 1.11/1.43      % set(auto) -> set(auto_limits).
% 1.11/1.43      % set(auto_limits) -> assign(max_weight, "100.000").
% 1.11/1.43      % set(auto_limits) -> assign(sos_limit, 20000).
% 1.11/1.43      % set(auto) -> set(auto_denials).
% 1.11/1.43      % set(auto) -> set(auto_process).
% 1.11/1.43      % set(auto2) -> assign(new_constants, 1).
% 1.11/1.43      % set(auto2) -> assign(fold_denial_max, 3).
% 1.11/1.43      % set(auto2) -> assign(max_weight, "200.000").
% 1.11/1.43      % set(auto2) -> assign(max_hours, 1).
% 1.11/1.43      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 1.11/1.43      % set(auto2) -> assign(max_seconds, 0).
% 1.11/1.43      % set(auto2) -> assign(max_minutes, 5).
% 1.11/1.43      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 1.11/1.43      % set(auto2) -> set(sort_initial_sos).
% 1.11/1.43      % set(auto2) -> assign(sos_limit, -1).
% 1.11/1.43      % set(auto2) -> assign(lrs_ticks, 3000).
% 1.11/1.43      % set(auto2) -> assign(max_megs, 400).
% 1.11/1.43      % set(auto2) -> assign(stats, some).
% 1.11/1.43      % set(auto2) -> clear(echo_input).
% 1.11/1.43      % set(auto2) -> set(quiet).
% 1.11/1.43      % set(auto2) -> clear(print_initial_clauses).
% 1.11/1.43      % set(auto2) -> clear(print_given).
% 1.11/1.43  assign(lrs_ticks,-1).
% 1.11/1.43  assign(sos_limit,10000).
% 1.11/1.43  assign(order,kbo).
% 1.11/1.43  set(lex_order_vars).
% 1.11/1.43  clear(print_given).
% 1.11/1.43  
% 1.11/1.43  % formulas(sos).  % not echoed (3 formulas)
% 1.11/1.43  
% 1.11/1.43  ============================== end of input ==========================
% 1.11/1.43  
% 1.11/1.43  % From the command line: assign(max_seconds, 300).
% 1.11/1.43  
% 1.11/1.43  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 1.11/1.43  
% 1.11/1.43  % Formulas that are not ordinary clauses:
% 1.11/1.43  
% 1.11/1.43  ============================== end of process non-clausal formulas ===
% 1.11/1.43  
% 1.11/1.43  ============================== PROCESS INITIAL CLAUSES ===============
% 1.11/1.43  
% 1.11/1.43  ============================== PREDICATE ELIMINATION =================
% 1.11/1.43  
% 1.11/1.43  ============================== end predicate elimination =============
% 1.11/1.43  
% 1.11/1.43  Auto_denials:
% 1.11/1.43    % copying label prove_these_axioms_2 to answer in negative clause
% 1.11/1.43  
% 1.11/1.43  Term ordering decisions:
% 1.11/1.43  
% 1.11/1.43  % Assigning unary symbol inverse kb_weight 0 and highest precedence (6).
% 1.11/1.43  Function symbol KB weights:  a2=1. b2=1. double_divide=1. multiply=1. inverse=0.
% 1.11/1.43  
% 1.11/1.43  ============================== end of process initial clauses ========
% 1.11/1.43  
% 1.11/1.43  ============================== CLAUSES FOR SEARCH ====================
% 1.11/1.43  
% 1.11/1.43  ============================== end of clauses for search =============
% 1.11/1.43  
% 1.11/1.43  ============================== SEARCH ================================
% 1.11/1.43  
% 1.11/1.43  % Starting search at 0.01 seconds.
% 1.11/1.43  
% 1.11/1.43  ============================== PROOF =================================
% 1.11/1.43  % SZS status Unsatisfiable
% 1.11/1.43  % SZS output start Refutation
% 1.11/1.43  
% 1.11/1.43  % Proof 1 at 0.39 (+ 0.01) seconds: prove_these_axioms_2.
% 1.11/1.43  % Length of proof is 90.
% 1.11/1.43  % Level of proof is 27.
% 1.11/1.43  % Maximum clause weight is 62.000.
% 1.11/1.43  % Given clauses 30.
% 1.11/1.43  
% 1.11/1.43  1 multiply(A,B) = inverse(double_divide(B,A)) # label(multiply) # label(axiom).  [assumption].
% 1.11/1.43  2 double_divide(double_divide(A,inverse(double_divide(B,C))),double_divide(inverse(B),inverse(double_divide(D,double_divide(A,D))))) = C # label(single_axiom) # label(axiom).  [assumption].
% 1.11/1.43  3 multiply(multiply(inverse(b2),b2),a2) != a2 # label(prove_these_axioms_2) # label(negated_conjecture) # answer(prove_these_axioms_2).  [assumption].
% 1.11/1.43  4 inverse(double_divide(a2,inverse(double_divide(b2,inverse(b2))))) != a2 # answer(prove_these_axioms_2).  [copy(3),rewrite([1(4),1(7)])].
% 1.11/1.43  5 double_divide(inverse(A),inverse(double_divide(B,double_divide(C,B)))) = double_divide(double_divide(D,inverse(E)),double_divide(inverse(double_divide(C,inverse(double_divide(A,E)))),inverse(double_divide(F,double_divide(D,F))))).  [para(2(a,1),2(a,1,1,2,1)),flip(a)].
% 1.11/1.43  6 double_divide(double_divide(double_divide(A,inverse(double_divide(B,C))),inverse(double_divide(D,E))),double_divide(inverse(D),inverse(double_divide(double_divide(inverse(B),inverse(double_divide(F,double_divide(A,F)))),C)))) = E.  [para(2(a,1),2(a,1,2,2,1,2))].
% 1.11/1.43  7 inverse(double_divide(inverse(A),inverse(double_divide(B,double_divide(C,B))))) = inverse(double_divide(double_divide(D,inverse(E)),double_divide(inverse(double_divide(C,inverse(double_divide(A,E)))),inverse(double_divide(F,double_divide(D,F)))))).  [para(5(a,1),1(a,2,1)),rewrite([1(5)])].
% 1.11/1.43  9 double_divide(double_divide(double_divide(A,inverse(B)),double_divide(inverse(double_divide(C,inverse(double_divide(D,B)))),inverse(double_divide(E,double_divide(A,E))))),double_divide(inverse(F),inverse(double_divide(V6,double_divide(inverse(D),V6))))) = double_divide(C,F).  [para(5(a,1),2(a,1,1))].
% 1.11/1.43  10 double_divide(double_divide(inverse(A),inverse(double_divide(B,C))),double_divide(inverse(B),inverse(double_divide(inverse(double_divide(D,double_divide(E,D))),double_divide(double_divide(F,inverse(V6)),double_divide(inverse(double_divide(E,inverse(double_divide(A,V6)))),inverse(double_divide(V7,double_divide(F,V7))))))))) = C.  [para(5(a,1),2(a,1,2,2,1,2))].
% 1.11/1.43  11 double_divide(double_divide(A,inverse(double_divide(B,C))),double_divide(double_divide(D,inverse(E)),double_divide(inverse(double_divide(A,inverse(double_divide(B,E)))),inverse(double_divide(F,double_divide(D,F)))))) = C.  [para(5(a,1),2(a,1,2))].
% 1.11/1.43  18 double_divide(inverse(A),inverse(double_divide(B,double_divide(C,B)))) = double_divide(D,double_divide(C,inverse(double_divide(A,double_divide(E,double_divide(D,E)))))).  [para(5(a,1),5(a,2,1)),rewrite([9(28)])].
% 1.11/1.43  26 double_divide(inverse(A),inverse(double_divide(B,double_divide(C,B)))) = double_divide(inverse(A),inverse(double_divide(D,double_divide(C,D)))).  [para(5(a,2),5(a,2))].
% 1.11/1.43  28 inverse(double_divide(A,double_divide(B,A))) = inverse(double_divide(C,double_divide(B,C))).  [para(26(a,1),2(a,1,1,2,1)),rewrite([2(14)])].
% 1.11/1.43  64 double_divide(inverse(double_divide(double_divide(A,inverse(double_divide(B,C))),A)),inverse(double_divide(D,double_divide(inverse(B),D)))) = C.  [para(18(a,2),2(a,1))].
% 1.11/1.43  72 double_divide(inverse(A),inverse(double_divide(B,double_divide(C,B)))) = double_divide(double_divide(D,inverse(E)),double_divide(F,double_divide(D,inverse(double_divide(double_divide(C,inverse(double_divide(A,E))),double_divide(V6,double_divide(F,V6))))))).  [para(18(a,1),5(a,2,2))].
% 1.11/1.43  77 double_divide(inverse(double_divide(A,B)),inverse(double_divide(C,double_divide(inverse(D),C)))) = double_divide(A,double_divide(double_divide(E,inverse(F)),double_divide(inverse(double_divide(B,inverse(double_divide(D,F)))),inverse(double_divide(V6,double_divide(E,V6)))))).  [para(5(a,1),18(a,2,2))].
% 1.11/1.43  89 double_divide(inverse(A),inverse(double_divide(inverse(double_divide(B,double_divide(C,B))),double_divide(D,double_divide(C,inverse(double_divide(E,double_divide(F,double_divide(D,F))))))))) = double_divide(V6,double_divide(inverse(E),inverse(double_divide(A,double_divide(V7,double_divide(V6,V7)))))).  [para(18(a,1),18(a,1,2,1,2))].
% 1.11/1.43  92 double_divide(inverse(double_divide(A,B)),inverse(double_divide(C,double_divide(inverse(D),C)))) = double_divide(A,double_divide(E,double_divide(B,inverse(double_divide(D,double_divide(F,double_divide(E,F))))))).  [para(18(a,1),18(a,2,2))].
% 1.11/1.43  138 double_divide(double_divide(inverse(A),inverse(double_divide(double_divide(double_divide(B,inverse(double_divide(A,C))),B),D))),C) = D.  [para(64(a,1),2(a,1,2))].
% 1.11/1.43  145 inverse(double_divide(A,double_divide(B,A))) = double_divide(inverse(double_divide(double_divide(C,inverse(double_divide(double_divide(D,inverse(E)),double_divide(inverse(double_divide(B,inverse(double_divide(F,E)))),inverse(double_divide(V6,double_divide(D,V6))))))),C)),inverse(double_divide(V7,double_divide(inverse(inverse(F)),V7)))).  [para(5(a,1),64(a,1,1,1,1,2,1)),flip(a)].
% 1.11/1.43  191 inverse(double_divide(A,double_divide(double_divide(inverse(B),inverse(double_divide(double_divide(double_divide(C,inverse(double_divide(B,D))),C),E))),A))) = inverse(double_divide(D,E)).  [para(138(a,1),28(a,1,1,2)),flip(a)].
% 1.11/1.43  195 double_divide(A,double_divide(double_divide(inverse(B),inverse(double_divide(double_divide(double_divide(C,inverse(double_divide(B,D))),C),E))),inverse(double_divide(F,double_divide(V6,double_divide(A,V6)))))) = double_divide(inverse(F),inverse(double_divide(D,E))).  [para(138(a,1),18(a,1,2,1,2)),flip(a)].
% 1.11/1.43  198 double_divide(inverse(A),inverse(double_divide(inverse(double_divide(A,double_divide(B,double_divide(C,B)))),D))) = double_divide(C,D).  [para(138(a,1),18(a,2,2)),rewrite([191(16)])].
% 1.11/1.43  207 double_divide(A,double_divide(inverse(B),inverse(double_divide(inverse(double_divide(B,C)),A)))) = C.  [para(138(a,1),6(a,1,1)),rewrite([64(13)])].
% 1.11/1.43  230 double_divide(inverse(double_divide(A,double_divide(B,A))),double_divide(inverse(C),inverse(double_divide(inverse(double_divide(C,D)),inverse(double_divide(E,double_divide(B,E))))))) = D.  [para(26(a,1),207(a,1,2,2,1))].
% 1.11/1.43  233 double_divide(A,double_divide(inverse(B),inverse(double_divide(inverse(double_divide(C,double_divide(D,C))),A)))) = double_divide(D,B).  [para(28(a,1),207(a,1,2,2,1,1))].
% 1.11/1.43  269 double_divide(A,inverse(double_divide(B,double_divide(C,B)))) = double_divide(A,inverse(double_divide(D,double_divide(C,D)))).  [para(26(a,1),198(a,1,2,1)),rewrite([198(11)])].
% 1.11/1.43  272 double_divide(inverse(double_divide(A,B)),inverse(double_divide(inverse(double_divide(C,double_divide(B,C))),D))) = double_divide(A,D).  [para(28(a,1),198(a,1,2,1,1))].
% 1.11/1.43  275 double_divide(inverse(A),inverse(double_divide(inverse(double_divide(inverse(double_divide(B,double_divide(C,double_divide(D,C)))),E)),double_divide(D,E)))) = double_divide(F,double_divide(inverse(B),inverse(double_divide(A,double_divide(V6,double_divide(F,V6)))))).  [para(198(a,1),18(a,1,2,1,2))].
% 1.11/1.43  290 double_divide(inverse(double_divide(double_divide(A,double_divide(B,A)),inverse(double_divide(C,D)))),inverse(D)) = double_divide(B,inverse(double_divide(E,double_divide(inverse(C),E)))).  [para(64(a,1),198(a,1,2,1))].
% 1.11/1.43  297 double_divide(A,double_divide(B,A)) = double_divide(C,double_divide(B,C)).  [para(198(a,1),207(a,1,2))].
% 1.11/1.43  376 double_divide(double_divide(inverse(double_divide(A,inverse(double_divide(B,C)))),inverse(double_divide(D,double_divide(E,D)))),double_divide(inverse(B),inverse(double_divide(F,double_divide(A,F))))) = double_divide(V6,double_divide(double_divide(E,inverse(C)),V6)).  [para(5(a,2),297(a,1,2))].
% 1.11/1.43  392 double_divide(double_divide(A,B),double_divide(C,double_divide(A,C))) = double_divide(D,double_divide(B,D)).  [para(297(a,1),297(a,1,2))].
% 1.11/1.43  443 double_divide(double_divide(A,double_divide(inverse(B),inverse(double_divide(double_divide(double_divide(C,inverse(double_divide(B,D))),C),E)))),double_divide(F,double_divide(A,F))) = double_divide(D,E).  [para(138(a,1),392(a,2,2))].
% 1.11/1.43  445 double_divide(A,double_divide(double_divide(inverse(B),inverse(double_divide(inverse(double_divide(B,C)),D))),A)) = double_divide(C,double_divide(E,double_divide(D,E))).  [para(207(a,1),392(a,1,1)),flip(a)].
% 1.11/1.43  491 double_divide(A,inverse(double_divide(inverse(double_divide(inverse(double_divide(B,double_divide(C,double_divide(D,C)))),E)),double_divide(D,E)))) = double_divide(A,inverse(double_divide(F,double_divide(inverse(B),F)))).  [para(198(a,1),269(a,1,2,1,2))].
% 1.11/1.43  698 double_divide(double_divide(A,inverse(double_divide(B,double_divide(C,B)))),double_divide(double_divide(D,inverse(E)),double_divide(inverse(double_divide(A,inverse(double_divide(F,E)))),inverse(double_divide(V6,double_divide(D,V6)))))) = double_divide(C,F).  [para(5(a,1),233(a,1,2))].
% 1.11/1.43  705 double_divide(double_divide(A,inverse(double_divide(B,double_divide(C,B)))),double_divide(D,double_divide(A,inverse(double_divide(E,double_divide(F,double_divide(D,F))))))) = double_divide(C,E).  [para(18(a,1),233(a,1,2))].
% 1.11/1.43  729 double_divide(A,double_divide(inverse(B),inverse(double_divide(C,double_divide(D,C))))) = double_divide(A,double_divide(double_divide(E,inverse(F)),double_divide(inverse(double_divide(D,inverse(double_divide(B,F)))),inverse(double_divide(V6,double_divide(E,V6)))))).  [para(7(a,1),233(a,1,2,1)),rewrite([233(19)]),flip(a)].
% 1.11/1.43  731 double_divide(double_divide(A,B),double_divide(C,double_divide(D,C))) = double_divide(E,double_divide(double_divide(inverse(B),inverse(double_divide(inverse(double_divide(F,double_divide(A,F))),D))),E)).  [para(233(a,1),392(a,1,1))].
% 1.11/1.43  849 double_divide(inverse(double_divide(double_divide(A,B),inverse(double_divide(A,C)))),inverse(double_divide(D,double_divide(inverse(inverse(double_divide(E,double_divide(C,E)))),D)))) = B.  [para(272(a,1),64(a,1,1,1,1))].
% 1.11/1.43  861 double_divide(A,double_divide(inverse(B),inverse(double_divide(inverse(double_divide(B,C)),inverse(double_divide(D,double_divide(E,D))))))) = double_divide(inverse(double_divide(A,E)),inverse(C)).  [para(207(a,1),272(a,1,2,1)),flip(a)].
% 1.11/1.43  901 double_divide(inverse(double_divide(inverse(double_divide(A,double_divide(B,A))),B)),inverse(C)) = C.  [back_rewrite(230),rewrite([861(13)])].
% 1.11/1.43  950 double_divide(double_divide(double_divide(inverse(A),inverse(B)),C),double_divide(inverse(D),inverse(double_divide(E,double_divide(inverse(F),E))))) = double_divide(double_divide(inverse(double_divide(F,B)),inverse(double_divide(A,C))),D).  [para(64(a,1),9(a,1,1,2))].
% 1.11/1.43  1055 double_divide(inverse(A),double_divide(inverse(inverse(double_divide(B,double_divide(C,B)))),inverse(A))) = C.  [para(901(a,1),207(a,1,2,2,1))].
% 1.11/1.43  1196 double_divide(inverse(double_divide(A,double_divide(B,A))),double_divide(C,double_divide(B,inverse(double_divide(inverse(double_divide(D,double_divide(E,D))),double_divide(F,double_divide(C,F))))))) = E.  [para(18(a,1),1055(a,1,2))].
% 1.11/1.43  1221 double_divide(A,double_divide(inverse(inverse(double_divide(B,double_divide(C,B)))),A)) = C.  [para(1055(a,1),297(a,1)),flip(a)].
% 1.11/1.43  1264 double_divide(inverse(double_divide(double_divide(A,B),inverse(double_divide(A,C)))),inverse(C)) = B.  [back_rewrite(849),rewrite([1221(11)])].
% 1.11/1.43  1279 double_divide(A,double_divide(inverse(inverse(double_divide(inverse(double_divide(B,double_divide(C,B))),double_divide(D,double_divide(C,inverse(double_divide(E,double_divide(F,double_divide(D,F))))))))),A)) = inverse(E).  [para(18(a,1),1221(a,1,2,1,1,1,2))].
% 1.11/1.43  1309 double_divide(A,double_divide(inverse(B),inverse(double_divide(inverse(double_divide(double_divide(inverse(inverse(double_divide(C,double_divide(D,C)))),E),D)),A)))) = double_divide(E,B).  [para(1221(a,1),233(a,1,2,2,1,1,1,2))].
% 1.11/1.43  1317 double_divide(A,double_divide(inverse(inverse(double_divide(inverse(double_divide(inverse(double_divide(B,double_divide(C,B))),D)),double_divide(E,D)))),A)) = inverse(double_divide(E,C)).  [para(272(a,1),1221(a,1,2,1,1,1,2))].
% 1.11/1.43  1324 double_divide(A,double_divide(inverse(inverse(double_divide(double_divide(inverse(inverse(double_divide(B,double_divide(C,B)))),D),C))),A)) = D.  [para(1221(a,1),1221(a,1,2,1,1,1,2))].
% 1.11/1.43  1340 double_divide(inverse(double_divide(A,inverse(double_divide(B,C)))),inverse(double_divide(D,double_divide(E,D)))) = double_divide(double_divide(inverse(F),inverse(double_divide(inverse(B),inverse(double_divide(V6,double_divide(A,V6)))))),double_divide(inverse(double_divide(E,inverse(C))),inverse(double_divide(inverse(double_divide(V7,double_divide(V8,V7))),double_divide(double_divide(V9,inverse(V10)),double_divide(inverse(double_divide(V8,inverse(double_divide(F,V10)))),inverse(double_divide(V11,double_divide(V9,V11))))))))).  [para(5(a,2),10(a,1,1,2,1)),flip(a)].
% 1.11/1.43  1370 inverse(double_divide(A,double_divide(inverse(B),A))) = double_divide(double_divide(inverse(C),inverse(D)),double_divide(inverse(inverse(double_divide(double_divide(E,inverse(double_divide(B,D))),E))),inverse(double_divide(inverse(double_divide(F,double_divide(V6,F))),double_divide(double_divide(V7,inverse(V8)),double_divide(inverse(double_divide(V6,inverse(double_divide(C,V8)))),inverse(double_divide(V9,double_divide(V7,V9))))))))).  [para(64(a,1),10(a,1,1,2,1)),flip(a)].
% 1.11/1.43  1445 inverse(double_divide(inverse(double_divide(A,double_divide(B,A))),C)) = double_divide(double_divide(inverse(D),inverse(double_divide(E,C))),double_divide(inverse(inverse(double_divide(E,B))),inverse(double_divide(inverse(double_divide(F,double_divide(V6,F))),double_divide(double_divide(V7,inverse(V8)),double_divide(inverse(double_divide(V6,inverse(double_divide(D,V8)))),inverse(double_divide(V9,double_divide(V7,V9))))))))).  [para(272(a,1),10(a,1,1,2,1)),flip(a)].
% 1.11/1.43  1541 double_divide(inverse(double_divide(double_divide(A,double_divide(B,A)),inverse(double_divide(C,D)))),inverse(D)) = double_divide(B,C).  [para(297(a,1),1264(a,1,1,1,1))].
% 1.11/1.43  1588 double_divide(A,inverse(double_divide(B,double_divide(inverse(C),B)))) = double_divide(A,C).  [back_rewrite(290),rewrite([1541(8)]),flip(a)].
% 1.11/1.43  1680 double_divide(double_divide(inverse(double_divide(A,B)),inverse(double_divide(C,D))),E) = double_divide(double_divide(double_divide(inverse(C),inverse(B)),D),double_divide(inverse(E),A)).  [back_rewrite(950),rewrite([1588(10)]),flip(a)].
% 1.11/1.43  1728 double_divide(A,inverse(double_divide(inverse(double_divide(inverse(double_divide(B,double_divide(C,double_divide(D,C)))),E)),double_divide(D,E)))) = double_divide(A,B).  [back_rewrite(491),rewrite([1588(15)])].
% 1.11/1.43  1771 inverse(double_divide(A,double_divide(B,A))) = double_divide(inverse(double_divide(double_divide(C,inverse(double_divide(double_divide(D,inverse(E)),double_divide(inverse(double_divide(B,inverse(double_divide(F,E)))),inverse(double_divide(V6,double_divide(D,V6))))))),C)),inverse(F)).  [back_rewrite(145),rewrite([1588(24)])].
% 1.11/1.43  1778 double_divide(A,double_divide(B,double_divide(C,inverse(double_divide(D,double_divide(E,double_divide(B,E))))))) = double_divide(inverse(double_divide(A,C)),D).  [back_rewrite(92),rewrite([1588(7)]),flip(a)].
% 1.11/1.43  1780 double_divide(A,double_divide(double_divide(B,inverse(C)),double_divide(inverse(double_divide(D,inverse(double_divide(E,C)))),inverse(double_divide(F,double_divide(B,F)))))) = double_divide(inverse(double_divide(A,D)),E).  [back_rewrite(77),rewrite([1588(7)]),flip(a)].
% 1.11/1.43  1846 double_divide(double_divide(double_divide(inverse(A),inverse(inverse(double_divide(B,C)))),double_divide(D,A)),double_divide(inverse(double_divide(inverse(B),inverse(double_divide(E,double_divide(F,E))))),F)) = double_divide(V6,double_divide(double_divide(D,inverse(C)),V6)).  [back_rewrite(376),rewrite([1680(14)])].
% 1.11/1.43  1888 double_divide(A,double_divide(inverse(B),inverse(double_divide(C,double_divide(D,double_divide(A,D)))))) = double_divide(inverse(C),B).  [back_rewrite(275),rewrite([1728(11)]),flip(a)].
% 1.11/1.43  1899 double_divide(inverse(A),inverse(double_divide(inverse(double_divide(inverse(double_divide(B,double_divide(C,B))),C)),D))) = double_divide(inverse(A),D).  [back_rewrite(89),rewrite([1778(11),1888(16)])].
% 1.11/1.43  1918 inverse(double_divide(inverse(double_divide(A,double_divide(B,A))),C)) = double_divide(double_divide(inverse(D),inverse(double_divide(E,C))),double_divide(inverse(inverse(double_divide(E,B))),D)).  [back_rewrite(1445),rewrite([1780(27),1899(20)])].
% 1.11/1.43  1942 inverse(double_divide(A,double_divide(inverse(B),A))) = double_divide(double_divide(inverse(C),inverse(D)),double_divide(inverse(inverse(double_divide(double_divide(E,inverse(double_divide(B,D))),E))),C)).  [back_rewrite(1370),rewrite([1780(28),1899(21)])].
% 1.11/1.43  1952 double_divide(inverse(double_divide(A,inverse(double_divide(B,C)))),inverse(double_divide(D,double_divide(E,D)))) = double_divide(double_divide(inverse(F),inverse(double_divide(inverse(B),inverse(double_divide(V6,double_divide(A,V6)))))),double_divide(inverse(double_divide(E,inverse(C))),F)).  [back_rewrite(1340),rewrite([1780(34),1899(27)])].
% 1.11/1.43  1958 double_divide(A,double_divide(inverse(inverse(double_divide(inverse(double_divide(inverse(double_divide(B,double_divide(C,B))),C)),D))),A)) = inverse(D).  [back_rewrite(1279),rewrite([1778(10)])].
% 1.11/1.43  1959 double_divide(A,double_divide(B,A)) = B.  [back_rewrite(1196),rewrite([1778(13),901(9)])].
% 1.11/1.43  1965 double_divide(double_divide(A,inverse(B)),double_divide(C,double_divide(A,inverse(double_divide(D,C))))) = double_divide(B,D).  [back_rewrite(705),rewrite([1959(2),1959(4)])].
% 1.11/1.43  1978 double_divide(A,double_divide(B,inverse(double_divide(C,A)))) = double_divide(inverse(C),inverse(B)).  [back_rewrite(72),rewrite([1959(3),1959(10),1965(13)]),flip(a)].
% 1.11/1.43  2022 double_divide(A,double_divide(double_divide(B,inverse(C)),double_divide(inverse(double_divide(D,inverse(double_divide(E,C)))),inverse(B)))) = double_divide(A,double_divide(inverse(E),inverse(D))).  [back_rewrite(729),rewrite([1959(3),1959(12)]),flip(a)].
% 1.11/1.43  2023 double_divide(double_divide(A,inverse(B)),double_divide(inverse(C),inverse(A))) = double_divide(B,C).  [back_rewrite(698),rewrite([1959(2),1959(10),2022(12)])].
% 1.11/1.43  2028 double_divide(double_divide(A,B),A) = B.  [back_rewrite(11),rewrite([1959(11),2023(12),1978(7),2023(7)])].
% 1.11/1.43  2048 inverse(inverse(double_divide(double_divide(inverse(inverse(A)),B),A))) = B.  [back_rewrite(1324),rewrite([1959(2),1959(8)])].
% 1.11/1.43  2056 double_divide(A,inverse(inverse(B))) = double_divide(A,B).  [back_rewrite(1309),rewrite([1959(3),1978(10),2048(6)])].
% 1.11/1.43  2061 double_divide(inverse(A),inverse(double_divide(inverse(double_divide(A,B)),C))) = double_divide(B,C).  [back_rewrite(443),rewrite([2028(5),1959(9),2028(8)])].
% 1.11/1.43  2067 double_divide(double_divide(A,B),C) = double_divide(inverse(B),inverse(double_divide(inverse(A),C))).  [back_rewrite(731),rewrite([1959(3),1959(5),1959(9)])].
% 1.11/1.43  2072 double_divide(inverse(inverse(A)),B) = double_divide(A,B).  [back_rewrite(445),rewrite([2061(6),2067(2),1978(6),2056(5),1959(5)])].
% 1.11/1.43  2077 double_divide(A,double_divide(inverse(B),inverse(double_divide(inverse(C),inverse(double_divide(D,A)))))) = double_divide(inverse(D),inverse(double_divide(C,B))).  [back_rewrite(195),rewrite([2028(5),2061(6),1959(3),2067(4)])].
% 1.11/1.43  2081 double_divide(inverse(A),inverse(double_divide(A,B))) = inverse(B).  [back_rewrite(1958),rewrite([1959(2),2072(7),2067(5),2072(6),2067(4),2072(5),2077(8)])].
% 1.11/1.43  2086 double_divide(inverse(double_divide(A,inverse(double_divide(B,C)))),inverse(D)) = double_divide(A,inverse(double_divide(B,double_divide(D,inverse(C))))).  [back_rewrite(1952),rewrite([1959(6),1959(10),2067(17),2072(18),1959(16),2056(16),2072(14),2067(12),2072(13),2072(13)])].
% 1.11/1.43  2087 inverse(inverse(A)) = A.  [back_rewrite(1942),rewrite([1959(3),2028(9),2072(10),2067(9),2072(10),1959(8),2056(8),2072(6),1959(4)])].
% 1.11/1.43  2089 inverse(double_divide(inverse(A),B)) = double_divide(inverse(B),A).  [back_rewrite(1918),rewrite([1959(2),2087(10),2067(9),2067(13),2087(6),2087(6),1978(10),2087(6),2087(6),2067(7),2081(8),2087(6)])].
% 1.11/1.43  2099 double_divide(A,double_divide(B,double_divide(inverse(A),C))) = double_divide(C,inverse(B)).  [back_rewrite(1846),rewrite([2087(4),2067(5),2087(4),1959(4),1959(7),2089(8),2087(6),2028(6),2067(5),2087(2),2087(3),2028(2),2067(5),2087(4),2089(5)]),flip(a)].
% 1.11/1.43  2104 double_divide(inverse(double_divide(A,B)),C) = double_divide(A,double_divide(inverse(C),inverse(B))).  [back_rewrite(1780),rewrite([1959(8),2086(8),1978(8)]),flip(a)].
% 1.11/1.43  2105 double_divide(A,double_divide(B,inverse(B))) = inverse(A).  [back_rewrite(1771),rewrite([1959(2),1959(9),2104(9),2087(5),2087(6),2067(7),2087(3),2089(7),2104(6),2081(6),1978(5),2089(5),2087(3),2028(4),2104(5),2087(3)]),flip(a)].
% 1.11/1.43  2112 inverse(double_divide(A,B)) = double_divide(inverse(B),inverse(A)).  [back_rewrite(1317),rewrite([1959(2),2089(3),2067(4),2087(3),1959(3),2089(4),2087(2),2104(3),2099(5)]),flip(a)].
% 1.11/1.43  2129 $F # answer(prove_these_axioms_2).  [back_rewrite(4),rewrite([2112(6),2087(4),2105(6),2087(3)]),xx(a)].
% 1.11/1.43  
% 1.11/1.43  % SZS output end Refutation
% 1.11/1.43  ============================== end of proof ==========================
% 1.11/1.43  
% 1.11/1.43  ============================== STATISTICS ============================
% 1.11/1.43  
% 1.11/1.43  Given=30. Generated=4771. Kept=2127. proofs=1.
% 1.11/1.43  Usable=1. Sos=7. Demods=29. Limbo=23, Disabled=2099. Hints=0.
% 1.11/1.43  Megabytes=3.87.
% 1.11/1.43  User_CPU=0.39, System_CPU=0.01, Wall_clock=1.
% 1.11/1.43  
% 1.11/1.43  ============================== end of statistics =====================
% 1.11/1.43  
% 1.11/1.43  ============================== end of search =========================
% 1.11/1.43  
% 1.11/1.43  THEOREM PROVED
% 1.11/1.43  % SZS status Unsatisfiable
% 1.11/1.43  
% 1.11/1.43  Exiting with 1 proof.
% 1.11/1.43  
% 1.11/1.43  Process 17981 exit (max_proofs) Tue Jun 14 13:50:00 2022
% 1.11/1.43  Prover9 interrupted
%------------------------------------------------------------------------------