TSTP Solution File: LCL559+1 by Prover9---1109a

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Prover9---1109a
% Problem  : LCL559+1 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_prover9 %d %s

% Computer : n019.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 : Sun Jul 17 13:47:34 EDT 2022

% Result   : Timeout 296.71s 297.03s
% Output   : None 
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : LCL559+1 : TPTP v8.1.0. Released v3.3.0.
% 0.03/0.13  % Command  : tptp2X_and_run_prover9 %d %s
% 0.12/0.32  % Computer : n019.cluster.edu
% 0.12/0.32  % Model    : x86_64 x86_64
% 0.12/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.32  % Memory   : 8042.1875MB
% 0.12/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.32  % CPULimit : 300
% 0.12/0.32  % WCLimit  : 600
% 0.12/0.32  % DateTime : Sun Jul  3 15:03:53 EDT 2022
% 0.12/0.32  % CPUTime  : 
% 0.41/1.01  ============================== Prover9 ===============================
% 0.41/1.01  Prover9 (32) version 2009-11A, November 2009.
% 0.41/1.01  Process 19223 was started by sandbox on n019.cluster.edu,
% 0.41/1.01  Sun Jul  3 15:03:54 2022
% 0.41/1.01  The command was "/export/starexec/sandbox/solver/bin/prover9 -t 300 -f /tmp/Prover9_19070_n019.cluster.edu".
% 0.41/1.01  ============================== end of head ===========================
% 0.41/1.01  
% 0.41/1.01  ============================== INPUT =================================
% 0.41/1.01  
% 0.41/1.01  % Reading from file /tmp/Prover9_19070_n019.cluster.edu
% 0.41/1.01  
% 0.41/1.01  set(prolog_style_variables).
% 0.41/1.01  set(auto2).
% 0.41/1.01      % set(auto2) -> set(auto).
% 0.41/1.01      % set(auto) -> set(auto_inference).
% 0.41/1.01      % set(auto) -> set(auto_setup).
% 0.41/1.01      % set(auto_setup) -> set(predicate_elim).
% 0.41/1.01      % set(auto_setup) -> assign(eq_defs, unfold).
% 0.41/1.01      % set(auto) -> set(auto_limits).
% 0.41/1.01      % set(auto_limits) -> assign(max_weight, "100.000").
% 0.41/1.01      % set(auto_limits) -> assign(sos_limit, 20000).
% 0.41/1.01      % set(auto) -> set(auto_denials).
% 0.41/1.01      % set(auto) -> set(auto_process).
% 0.41/1.01      % set(auto2) -> assign(new_constants, 1).
% 0.41/1.01      % set(auto2) -> assign(fold_denial_max, 3).
% 0.41/1.01      % set(auto2) -> assign(max_weight, "200.000").
% 0.41/1.01      % set(auto2) -> assign(max_hours, 1).
% 0.41/1.01      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 0.41/1.01      % set(auto2) -> assign(max_seconds, 0).
% 0.41/1.01      % set(auto2) -> assign(max_minutes, 5).
% 0.41/1.01      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 0.41/1.01      % set(auto2) -> set(sort_initial_sos).
% 0.41/1.01      % set(auto2) -> assign(sos_limit, -1).
% 0.41/1.01      % set(auto2) -> assign(lrs_ticks, 3000).
% 0.41/1.01      % set(auto2) -> assign(max_megs, 400).
% 0.41/1.01      % set(auto2) -> assign(stats, some).
% 0.41/1.01      % set(auto2) -> clear(echo_input).
% 0.41/1.01      % set(auto2) -> set(quiet).
% 0.41/1.01      % set(auto2) -> clear(print_initial_clauses).
% 0.41/1.01      % set(auto2) -> clear(print_given).
% 0.41/1.01  assign(lrs_ticks,-1).
% 0.41/1.01  assign(sos_limit,10000).
% 0.41/1.01  assign(order,kbo).
% 0.41/1.01  set(lex_order_vars).
% 0.41/1.01  clear(print_given).
% 0.41/1.01  
% 0.41/1.01  % formulas(sos).  % not echoed (77 formulas)
% 0.41/1.01  
% 0.41/1.01  ============================== end of input ==========================
% 0.41/1.01  
% 0.41/1.01  % From the command line: assign(max_seconds, 300).
% 0.41/1.01  
% 0.41/1.01  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 0.41/1.01  
% 0.41/1.01  % Formulas that are not ordinary clauses:
% 0.41/1.01  1 modus_ponens <-> (all X all Y (is_a_theorem(X) & is_a_theorem(implies(X,Y)) -> is_a_theorem(Y))) # label(modus_ponens) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  2 substitution_of_equivalents <-> (all X all Y (is_a_theorem(equiv(X,Y)) -> X = Y)) # label(substitution_of_equivalents) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  3 modus_tollens <-> (all X all Y is_a_theorem(implies(implies(not(Y),not(X)),implies(X,Y)))) # label(modus_tollens) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  4 implies_1 <-> (all X all Y is_a_theorem(implies(X,implies(Y,X)))) # label(implies_1) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  5 implies_2 <-> (all X all Y is_a_theorem(implies(implies(X,implies(X,Y)),implies(X,Y)))) # label(implies_2) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  6 implies_3 <-> (all X all Y all Z is_a_theorem(implies(implies(X,Y),implies(implies(Y,Z),implies(X,Z))))) # label(implies_3) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  7 and_1 <-> (all X all Y is_a_theorem(implies(and(X,Y),X))) # label(and_1) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  8 and_2 <-> (all X all Y is_a_theorem(implies(and(X,Y),Y))) # label(and_2) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  9 and_3 <-> (all X all Y is_a_theorem(implies(X,implies(Y,and(X,Y))))) # label(and_3) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  10 or_1 <-> (all X all Y is_a_theorem(implies(X,or(X,Y)))) # label(or_1) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  11 or_2 <-> (all X all Y is_a_theorem(implies(Y,or(X,Y)))) # label(or_2) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  12 or_3 <-> (all X all Y all Z is_a_theorem(implies(implies(X,Z),implies(implies(Y,Z),implies(or(X,Y),Z))))) # label(or_3) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  13 equivalence_1 <-> (all X all Y is_a_theorem(implies(equiv(X,Y),implies(X,Y)))) # label(equivalence_1) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  14 equivalence_2 <-> (all X all Y is_a_theorem(implies(equiv(X,Y),implies(Y,X)))) # label(equivalence_2) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  15 equivalence_3 <-> (all X all Y is_a_theorem(implies(implies(X,Y),implies(implies(Y,X),equiv(X,Y))))) # label(equivalence_3) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  16 kn1 <-> (all P is_a_theorem(implies(P,and(P,P)))) # label(kn1) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  17 kn2 <-> (all P all Q is_a_theorem(implies(and(P,Q),P))) # label(kn2) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  18 kn3 <-> (all P all Q all R is_a_theorem(implies(implies(P,Q),implies(not(and(Q,R)),not(and(R,P)))))) # label(kn3) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  19 cn1 <-> (all P all Q all R is_a_theorem(implies(implies(P,Q),implies(implies(Q,R),implies(P,R))))) # label(cn1) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  20 cn2 <-> (all P all Q is_a_theorem(implies(P,implies(not(P),Q)))) # label(cn2) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  21 cn3 <-> (all P is_a_theorem(implies(implies(not(P),P),P))) # label(cn3) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  22 r1 <-> (all P is_a_theorem(implies(or(P,P),P))) # label(r1) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  23 r2 <-> (all P all Q is_a_theorem(implies(Q,or(P,Q)))) # label(r2) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  24 r3 <-> (all P all Q is_a_theorem(implies(or(P,Q),or(Q,P)))) # label(r3) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  25 r4 <-> (all P all Q all R is_a_theorem(implies(or(P,or(Q,R)),or(Q,or(P,R))))) # label(r4) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  26 r5 <-> (all P all Q all R is_a_theorem(implies(implies(Q,R),implies(or(P,Q),or(P,R))))) # label(r5) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  27 op_or -> (all X all Y or(X,Y) = not(and(not(X),not(Y)))) # label(op_or) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  28 op_and -> (all X all Y and(X,Y) = not(or(not(X),not(Y)))) # label(op_and) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  29 op_implies_and -> (all X all Y implies(X,Y) = not(and(X,not(Y)))) # label(op_implies_and) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  30 op_implies_or -> (all X all Y implies(X,Y) = or(not(X),Y)) # label(op_implies_or) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  31 op_equiv -> (all X all Y equiv(X,Y) = and(implies(X,Y),implies(Y,X))) # label(op_equiv) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  32 necessitation <-> (all X (is_a_theorem(X) -> is_a_theorem(necessarily(X)))) # label(necessitation) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  33 modus_ponens_strict_implies <-> (all X all Y (is_a_theorem(X) & is_a_theorem(strict_implies(X,Y)) -> is_a_theorem(Y))) # label(modus_ponens_strict_implies) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  34 adjunction <-> (all X all Y (is_a_theorem(X) & is_a_theorem(Y) -> is_a_theorem(and(X,Y)))) # label(adjunction) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  35 substitution_strict_equiv <-> (all X all Y (is_a_theorem(strict_equiv(X,Y)) -> X = Y)) # label(substitution_strict_equiv) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  36 axiom_K <-> (all X all Y is_a_theorem(implies(necessarily(implies(X,Y)),implies(necessarily(X),necessarily(Y))))) # label(axiom_K) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  37 axiom_M <-> (all X is_a_theorem(implies(necessarily(X),X))) # label(axiom_M) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  38 axiom_4 <-> (all X is_a_theorem(implies(necessarily(X),necessarily(necessarily(X))))) # label(axiom_4) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  39 axiom_B <-> (all X is_a_theorem(implies(X,necessarily(possibly(X))))) # label(axiom_B) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  40 axiom_5 <-> (all X is_a_theorem(implies(possibly(X),necessarily(possibly(X))))) # label(axiom_5) # label(axiom) # label(non_clause).  [assumption].
% 0.41/1.01  41 axiom_s1 <-> (all X all Y all Z is_a_theorem(implies(and(necessarily(implies(X,Y)),necessarily(implies(Y,Z))),necessarily(implies(X,Z))))) # label(axiom_s1) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  42 axiom_s2 <-> (all P all Q is_a_theorem(strict_implies(possibly(and(P,Q)),and(possibly(P),possibly(Q))))) # label(axiom_s2) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  43 axiom_s3 <-> (all X all Y is_a_theorem(strict_implies(strict_implies(X,Y),strict_implies(not(possibly(Y)),not(possibly(X)))))) # label(axiom_s3) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  44 axiom_s4 <-> (all X is_a_theorem(strict_implies(necessarily(X),necessarily(necessarily(X))))) # label(axiom_s4) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  45 axiom_m1 <-> (all X all Y is_a_theorem(strict_implies(and(X,Y),and(Y,X)))) # label(axiom_m1) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  46 axiom_m2 <-> (all X all Y is_a_theorem(strict_implies(and(X,Y),X))) # label(axiom_m2) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  47 axiom_m3 <-> (all X all Y all Z is_a_theorem(strict_implies(and(and(X,Y),Z),and(X,and(Y,Z))))) # label(axiom_m3) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  48 axiom_m4 <-> (all X is_a_theorem(strict_implies(X,and(X,X)))) # label(axiom_m4) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  49 axiom_m5 <-> (all X all Y all Z is_a_theorem(strict_implies(and(strict_implies(X,Y),strict_implies(Y,Z)),strict_implies(X,Z)))) # label(axiom_m5) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  50 axiom_m6 <-> (all X is_a_theorem(strict_implies(X,possibly(X)))) # label(axiom_m6) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  51 axiom_m7 <-> (all P all Q is_a_theorem(strict_implies(possibly(and(P,Q)),P))) # label(axiom_m7) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  52 axiom_m8 <-> (all P all Q is_a_theorem(strict_implies(strict_implies(P,Q),strict_implies(possibly(P),possibly(Q))))) # label(axiom_m8) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  53 axiom_m9 <-> (all X is_a_theorem(strict_implies(possibly(possibly(X)),possibly(X)))) # label(axiom_m9) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  54 axiom_m10 <-> (all X is_a_theorem(strict_implies(possibly(X),necessarily(possibly(X))))) # label(axiom_m10) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  55 op_possibly -> (all X possibly(X) = not(necessarily(not(X)))) # label(op_possibly) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  56 op_necessarily -> (all X necessarily(X) = not(possibly(not(X)))) # label(op_necessarily) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  57 op_strict_implies -> (all X all Y strict_implies(X,Y) = necessarily(implies(X,Y))) # label(op_strict_implies) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  58 op_strict_equiv -> (all X all Y strict_equiv(X,Y) = and(strict_implies(X,Y),strict_implies(Y,X))) # label(op_strict_equiv) # label(axiom) # label(non_clause).  [assumption].
% 0.73/1.04  
% 0.73/1.04  ============================== end of process non-clausal formulas ===
% 0.73/1.04  
% 0.73/1.04  ============================== PROCESS INITIAL CLAUSES ===============
% 0.73/1.04  
% 0.73/1.04  ============================== PREDICATE ELIMINATION =================
% 0.73/1.04  
% 0.73/1.04  ============================== end predicate elimination =============
% 0.73/1.04  
% 0.73/1.04  Auto_denials:  (non-Horn, no changes).
% 0.73/1.04  
% 0.73/1.04  Term ordering decisions:
% 0.73/1.04  Function symbol KB weights:  c1=1. c2=1. c3=1. c4=1. c5=1. c6=1. c7=1. c8=1. c9=1. c10=1. c11=1. c12=1. c13=1. c14=1. c15=1. c16=1. c17=1. c18=1. c19=1. c20=1. c21=1. c22=1. c23=1. c24=1. c25=1. c26=1. c27=1. c28=1. c29=1. c30=1. c31=1. c32=1. c33=1. c34=1. c35=1. c36=1. c37=1. c38=1. c39=1. c40=1. c41=1. c42=1. c43=1. c44=1. c45=1. c46=1. c47=1. c48=1. c49=1. c50=1. c51=1. c52=1. c53=1. c54=1. c55=1. c56=1. c57=1. c58=1. c59=1. c60=1. c61=1. c62=1. c63=1. c64=1. c65=1. c66=1. c67=1. c68=1. c69=1. c70=1. c71=1. c72=1. c73=1. c74=1. c75=1. c76=1. c77=1. c78=1. c79=1. c80=1. c81=1. c82=1. c83=1. c84=1. c85=1. c86=1. c87=1. c88=1. c89=1. c90=1. c91=1. c92=1. c93=1. c94=1. implies=1. and=1. strict_implies=1. or=1. equiv=1. strict_equiv=1. necessarily=1. possibly=1. not=1.
% 0.73/1.04  
% 0.73/1.04  ============================== end of process initial clauses ========
% 0.73/1.04  
% 0.73/1.04  ============================== CLAUSES FOR SEARCH ====================
% 296.71/297.03  
% 296.71/297.03  ============================== end of clauses for search =============
% 296.71/297.03  
% 296.71/297.03  ============================== SEARCH ================================
% 296.71/297.03  
% 296.71/297.03  % Starting search at 0.04 seconds.
% 296.71/297.03  
% 296.71/297.03  Low Water (keep): wt=23.000, iters=3355
% 296.71/297.03  
% 296.71/297.03  Low Water (keep): wt=22.000, iters=3425
% 296.71/297.03  
% 296.71/297.03  Low Water (keep): wt=21.000, iters=3381
% 296.71/297.03  
% 296.71/297.03  Low Water (keep): wt=20.000, iters=3433
% 296.71/297.03  
% 296.71/297.03  Low Water (keep): wt=19.000, iters=3351
% 296.71/297.03  
% 296.71/297.03  Low Water (keep): wt=18.000, iters=3355
% 296.71/297.03  
% 296.71/297.03  Low Water (keep): wt=17.000, iters=3370
% 296.71/297.03  
% 296.71/297.03  Low Water (keep): wt=16.000, iters=3342
% 296.71/297.03  
% 296.71/297.03  NOTE: Back_subsumption disabled, ratio of kept to back_subsumed is 408 (0.00 of 2.04 sec).
% 296.71/297.03  % back CAC tautology: 10351 equiv(possibly(necessarily(not(A))),not(B)) = equiv(not(B),possibly(necessarily(not(A)))).  [back_rewrite(4407),rewrite([10190(9),4406(9)]),flip(a)].
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=15330, wt=41.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=15322, wt=40.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=15329, wt=38.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=15327, wt=37.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=15363, wt=36.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=15326, wt=34.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=15386, wt=33.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=15171, wt=32.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=14510, wt=31.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=15032, wt=30.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=15389, wt=29.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=15435, wt=28.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=21023, wt=16.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=21084, wt=15.000
% 296.71/297.03  % back CAC tautology: 24473 or(or(A,B),not(C)) = or(not(C),or(A,B)).  [para(24410(a,2),20506(a,1)),rewrite([20506(6)]),flip(a)].
% 296.71/297.03  % back CAC tautology: 24463 or(and(A,possibly(B)),not(C)) = or(not(C),and(A,possibly(B))).  [para(24410(a,2),2201(a,2)),rewrite([2201(5)])].
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=25718, wt=14.000
% 296.71/297.03  
% 296.71/297.03  Low Water (displace): id=26088, wt=13.000
% 296.71/297.03  
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% 296.71/297.03  Low Water (displace): id=26194, wt=10.000
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% 296.71/297.03  Low Water (keep): wt=15.000, iters=3334
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% 296.71/297.03  Low Water (displace): id=41872, wt=9.000
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% 296.71/297.03  Low Water (keep): wt=14.000, iters=3333
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% 296.71/297.03  Low Water (keep): wt=13.000, iters=3333
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% 296.71/297.03  Low Water (keep): wt=12.000, iters=3601
% 296.71/297.03  
% 296.71/297.03  ============================== PROOF =================================
% 296.71/297.03  % SZS status Theorem
% 296.71/297.03  % SZS output start Refutation
% 296.71/297.03  
% 296.71/297.03  % Proof 1 at 287.17 (+ 8.84) seconds.
% 296.71/297.03  % Length of proof is 260.
% 296.71/297.03  % Level of proof is 58.
% 296.71/297.03  % Maximum clause weight is 20.000.
% 296.71/297.03  % Given clauses 34237.
% 296.71/297.03  
% 296.71/297.03  2 substitution_of_equivalents <-> (all X all Y (is_a_theorem(equiv(X,Y)) -> X = Y)) # label(substitution_of_equivalents) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  11 or_2 <-> (all X all Y is_a_theorem(implies(Y,or(X,Y)))) # label(or_2) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  27 op_or -> (all X all Y or(X,Y) = not(and(not(X),not(Y)))) # label(op_or) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  29 op_implies_and -> (all X all Y implies(X,Y) = not(and(X,not(Y)))) # label(op_implies_and) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  31 op_equiv -> (all X all Y equiv(X,Y) = and(implies(X,Y),implies(Y,X))) # label(op_equiv) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  33 modus_ponens_strict_implies <-> (all X all Y (is_a_theorem(X) & is_a_theorem(strict_implies(X,Y)) -> is_a_theorem(Y))) # label(modus_ponens_strict_implies) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  34 adjunction <-> (all X all Y (is_a_theorem(X) & is_a_theorem(Y) -> is_a_theorem(and(X,Y)))) # label(adjunction) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  35 substitution_strict_equiv <-> (all X all Y (is_a_theorem(strict_equiv(X,Y)) -> X = Y)) # label(substitution_strict_equiv) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  45 axiom_m1 <-> (all X all Y is_a_theorem(strict_implies(and(X,Y),and(Y,X)))) # label(axiom_m1) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  46 axiom_m2 <-> (all X all Y is_a_theorem(strict_implies(and(X,Y),X))) # label(axiom_m2) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  47 axiom_m3 <-> (all X all Y all Z is_a_theorem(strict_implies(and(and(X,Y),Z),and(X,and(Y,Z))))) # label(axiom_m3) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  48 axiom_m4 <-> (all X is_a_theorem(strict_implies(X,and(X,X)))) # label(axiom_m4) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  49 axiom_m5 <-> (all X all Y all Z is_a_theorem(strict_implies(and(strict_implies(X,Y),strict_implies(Y,Z)),strict_implies(X,Z)))) # label(axiom_m5) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  57 op_strict_implies -> (all X all Y strict_implies(X,Y) = necessarily(implies(X,Y))) # label(op_strict_implies) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  58 op_strict_equiv -> (all X all Y strict_equiv(X,Y) = and(strict_implies(X,Y),strict_implies(Y,X))) # label(op_strict_equiv) # label(axiom) # label(non_clause).  [assumption].
% 296.71/297.03  63 -substitution_of_equivalents | -is_a_theorem(equiv(A,B)) | B = A # label(substitution_of_equivalents) # label(axiom).  [clausify(2)].
% 296.71/297.03  83 or_2 | -is_a_theorem(implies(c23,or(c22,c23))) # label(or_2) # label(axiom).  [clausify(11)].
% 296.71/297.03  114 -op_or | or(A,B) = not(and(not(A),not(B))) # label(op_or) # label(axiom).  [clausify(27)].
% 296.71/297.03  115 -op_or | not(and(not(A),not(B))) = or(A,B).  [copy(114),flip(b)].
% 296.71/297.03  118 -op_implies_and | not(and(A,not(B))) = implies(A,B) # label(op_implies_and) # label(axiom).  [clausify(29)].
% 296.71/297.03  120 -op_equiv | and(implies(A,B),implies(B,A)) = equiv(A,B) # label(op_equiv) # label(axiom).  [clausify(31)].
% 296.71/297.03  124 -modus_ponens_strict_implies | -is_a_theorem(A) | -is_a_theorem(strict_implies(A,B)) | is_a_theorem(B) # label(modus_ponens_strict_implies) # label(axiom).  [clausify(33)].
% 296.71/297.03  128 -adjunction | -is_a_theorem(A) | -is_a_theorem(B) | is_a_theorem(and(A,B)) # label(adjunction) # label(axiom).  [clausify(34)].
% 296.71/297.03  132 -substitution_strict_equiv | -is_a_theorem(strict_equiv(A,B)) | B = A # label(substitution_strict_equiv) # label(axiom).  [clausify(35)].
% 296.71/297.03  153 -axiom_m1 | is_a_theorem(strict_implies(and(A,B),and(B,A))) # label(axiom_m1) # label(axiom).  [clausify(45)].
% 296.71/297.03  155 -axiom_m2 | is_a_theorem(strict_implies(and(A,B),A)) # label(axiom_m2) # label(axiom).  [clausify(46)].
% 296.71/297.03  157 -axiom_m3 | is_a_theorem(strict_implies(and(and(A,B),C),and(A,and(B,C)))) # label(axiom_m3) # label(axiom).  [clausify(47)].
% 296.71/297.03  159 -axiom_m4 | is_a_theorem(strict_implies(A,and(A,A))) # label(axiom_m4) # label(axiom).  [clausify(48)].
% 296.71/297.03  161 -axiom_m5 | is_a_theorem(strict_implies(and(strict_implies(A,B),strict_implies(B,C)),strict_implies(A,C))) # label(axiom_m5) # label(axiom).  [clausify(49)].
% 296.71/297.03  177 -op_strict_implies | strict_implies(A,B) = necessarily(implies(A,B)) # label(op_strict_implies) # label(axiom).  [clausify(57)].
% 296.71/297.03  178 -op_strict_implies | necessarily(implies(A,B)) = strict_implies(A,B).  [copy(177),flip(b)].
% 296.71/297.03  179 -op_strict_equiv | strict_equiv(A,B) = and(strict_implies(A,B),strict_implies(B,A)) # label(op_strict_equiv) # label(axiom).  [clausify(58)].
% 296.71/297.03  180 -op_strict_equiv | and(strict_implies(A,B),strict_implies(B,A)) = strict_equiv(A,B).  [copy(179),flip(b)].
% 296.71/297.03  182 op_or # label(s1_0_op_or) # label(axiom).  [assumption].
% 296.71/297.03  184 op_strict_implies # label(s1_0_op_strict_implies) # label(axiom).  [assumption].
% 296.71/297.03  185 op_equiv # label(s1_0_op_equiv) # label(axiom).  [assumption].
% 296.71/297.03  186 op_strict_equiv # label(s1_0_op_strict_equiv) # label(axiom).  [assumption].
% 296.71/297.03  187 modus_ponens_strict_implies # label(s1_0_modus_ponens_strict_implies) # label(axiom).  [assumption].
% 296.71/297.03  188 substitution_strict_equiv # label(s1_0_substitution_strict_equiv) # label(axiom).  [assumption].
% 296.71/297.03  189 adjunction # label(s1_0_adjunction) # label(axiom).  [assumption].
% 296.71/297.03  190 axiom_m1 # label(s1_0_axiom_m1) # label(axiom).  [assumption].
% 296.71/297.03  191 axiom_m2 # label(s1_0_axiom_m2) # label(axiom).  [assumption].
% 296.71/297.03  192 axiom_m3 # label(s1_0_axiom_m3) # label(axiom).  [assumption].
% 296.71/297.03  193 axiom_m4 # label(s1_0_axiom_m4) # label(axiom).  [assumption].
% 296.71/297.03  194 axiom_m5 # label(s1_0_axiom_m5) # label(axiom).  [assumption].
% 296.71/297.03  195 op_implies_and # label(hilbert_op_implies_and) # label(axiom).  [assumption].
% 296.71/297.03  196 substitution_of_equivalents # label(substitution_of_equivalents) # label(axiom).  [assumption].
% 296.71/297.03  197 -or_2 # label(hilbert_or_2) # label(negated_conjecture).  [assumption].
% 296.71/297.03  200 not(and(not(A),not(B))) = or(A,B).  [back_unit_del(115),unit_del(a,182)].
% 296.71/297.03  201 necessarily(implies(A,B)) = strict_implies(A,B).  [back_unit_del(178),unit_del(a,184)].
% 296.71/297.03  202 and(implies(A,B),implies(B,A)) = equiv(A,B).  [back_unit_del(120),unit_del(a,185)].
% 296.71/297.03  203 and(strict_implies(A,B),strict_implies(B,A)) = strict_equiv(A,B).  [back_unit_del(180),unit_del(a,186)].
% 296.71/297.03  204 -is_a_theorem(A) | -is_a_theorem(strict_implies(A,B)) | is_a_theorem(B).  [back_unit_del(124),unit_del(a,187)].
% 296.71/297.03  205 -is_a_theorem(strict_equiv(A,B)) | B = A.  [back_unit_del(132),unit_del(a,188)].
% 296.71/297.03  206 -is_a_theorem(A) | -is_a_theorem(B) | is_a_theorem(and(A,B)).  [back_unit_del(128),unit_del(a,189)].
% 296.71/297.03  207 is_a_theorem(strict_implies(and(A,B),and(B,A))).  [back_unit_del(153),unit_del(a,190)].
% 296.71/297.03  208 is_a_theorem(strict_implies(and(A,B),A)).  [back_unit_del(155),unit_del(a,191)].
% 296.71/297.03  209 is_a_theorem(strict_implies(and(and(A,B),C),and(A,and(B,C)))).  [back_unit_del(157),unit_del(a,192)].
% 296.71/297.03  210 is_a_theorem(strict_implies(A,and(A,A))).  [back_unit_del(159),unit_del(a,193)].
% 296.71/297.03  211 is_a_theorem(strict_implies(and(strict_implies(A,B),strict_implies(B,C)),strict_implies(A,C))).  [back_unit_del(161),unit_del(a,194)].
% 296.71/297.03  212 not(and(A,not(B))) = implies(A,B).  [back_unit_del(118),unit_del(a,195)].
% 296.71/297.03  213 -is_a_theorem(equiv(A,B)) | B = A.  [back_unit_del(63),unit_del(a,196)].
% 296.71/297.03  214 -is_a_theorem(implies(c23,or(c22,c23))).  [back_unit_del(83),unit_del(a,197)].
% 296.71/297.03  219 implies(not(A),B) = or(A,B).  [back_rewrite(200),rewrite([212(4)])].
% 296.71/297.03  240 -is_a_theorem(A) | is_a_theorem(and(A,strict_implies(and(B,C),and(C,B)))).  [resolve(207,a,206,b)].
% 296.71/297.03  247 -is_a_theorem(A) | is_a_theorem(and(A,strict_implies(and(B,C),B))).  [resolve(208,a,206,b)].
% 296.71/297.03  248 -is_a_theorem(A) | is_a_theorem(and(strict_implies(and(B,C),B),A)).  [resolve(208,a,206,a)].
% 296.71/297.03  263 -is_a_theorem(A) | is_a_theorem(and(A,strict_implies(B,and(B,B)))).  [resolve(210,a,206,b)].
% 296.71/297.03  271 -is_a_theorem(and(strict_implies(A,B),strict_implies(B,C))) | is_a_theorem(strict_implies(A,C)).  [resolve(211,a,204,b)].
% 296.71/297.03  277 not(and(A,implies(B,C))) = implies(A,and(B,not(C))).  [para(212(a,1),212(a,1,1,2))].
% 296.71/297.03  280 necessarily(or(A,B)) = strict_implies(not(A),B).  [para(219(a,1),201(a,1,1))].
% 296.71/297.03  281 and(or(A,B),implies(B,not(A))) = equiv(not(A),B).  [para(219(a,1),202(a,1,1))].
% 296.71/297.03  282 and(implies(A,not(B)),or(B,A)) = equiv(A,not(B)).  [para(219(a,1),202(a,1,2))].
% 296.71/297.03  283 or(and(A,not(B)),C) = implies(implies(A,B),C).  [para(212(a,1),219(a,1,1)),flip(a)].
% 296.71/297.03  465 is_a_theorem(and(strict_implies(and(and(A,B),C),and(A,and(B,C))),strict_implies(and(D,E),and(E,D)))).  [resolve(240,a,209,a)].
% 296.71/297.03  467 is_a_theorem(and(strict_implies(and(A,B),and(B,A)),strict_implies(and(C,D),and(D,C)))).  [resolve(240,a,207,a)].
% 296.71/297.03  605 is_a_theorem(and(strict_implies(A,and(A,A)),strict_implies(and(B,C),B))).  [resolve(247,a,210,a)].
% 296.71/297.03  607 is_a_theorem(and(strict_implies(and(A,B),A),strict_implies(and(C,D),C))).  [resolve(247,a,208,a)].
% 296.71/297.03  2316 implies(A,and(not(B),not(C))) = not(and(A,or(B,C))).  [para(219(a,1),277(a,1,1,2)),flip(a)].
% 296.71/297.03  2429 and(or(A,not(B)),or(B,not(A))) = equiv(not(A),not(B)).  [para(219(a,1),281(a,1,2))].
% 296.71/297.03  9036 is_a_theorem(strict_implies(A,A)).  [resolve(605,a,271,a)].
% 296.71/297.03  9042 is_a_theorem(strict_equiv(A,and(A,A))).  [para(203(a,1),605(a,1))].
% 296.71/297.03  9087 is_a_theorem(and(strict_implies(A,A),strict_implies(B,and(B,B)))).  [resolve(9036,a,263,a)].
% 296.71/297.03  9088 is_a_theorem(and(strict_implies(and(A,B),A),strict_implies(C,C))).  [resolve(9036,a,248,a)].
% 296.71/297.03  9089 is_a_theorem(and(strict_implies(A,A),strict_implies(and(B,C),B))).  [resolve(9036,a,247,a)].
% 296.71/297.03  9098 -is_a_theorem(A) | is_a_theorem(and(A,strict_implies(B,B))).  [resolve(9036,a,206,b)].
% 296.71/297.03  9101 is_a_theorem(strict_implies(and(and(A,B),C),and(and(B,C),A))).  [resolve(465,a,271,a)].
% 296.71/297.03  9218 and(A,A) = A.  [resolve(9042,a,205,a)].
% 296.71/297.03  9223 is_a_theorem(and(strict_implies(A,A),strict_implies(B,B))).  [back_rewrite(9087),rewrite([9218(2)])].
% 296.71/297.03  9658 strict_equiv(A,A) = strict_implies(A,A).  [para(9218(a,1),203(a,1)),flip(a)].
% 296.71/297.03  9659 is_a_theorem(strict_implies(and(A,B),and(A,and(A,B)))).  [para(9218(a,1),209(a,1,1,1))].
% 296.71/297.03  9662 or(A,A) = not(not(A)).  [para(9218(a,1),212(a,1,1)),rewrite([219(4)]),flip(a)].
% 296.71/297.03  9675 implies(or(A,A),B) = or(not(A),B).  [para(9218(a,1),283(a,1,1)),rewrite([219(4)]),flip(a)].
% 296.71/297.03  9780 is_a_theorem(strict_equiv(and(A,B),and(B,A))).  [para(203(a,1),467(a,1))].
% 296.71/297.03  9921 strict_implies(or(A,A),B) = strict_implies(not(not(A)),B).  [para(9662(a,2),280(a,2,1)),rewrite([280(3)]),flip(a)].
% 296.71/297.03  9938 not(or(A,A)) = not(not(not(A))).  [para(9662(a,2),9662(a,2,1)),rewrite([9662(3)]),flip(a)].
% 296.71/297.03  10190 and(A,B) = and(B,A).  [resolve(9780,a,205,a)].
% 296.71/297.03  10306 is_a_theorem(strict_implies(and(A,and(B,C)),and(B,and(C,A)))).  [back_rewrite(9101),rewrite([10190(2),10190(4)])].
% 296.71/297.03  10455 equiv(not(A),B) = equiv(B,not(A)).  [back_rewrite(282),rewrite([10190(4),281(4)])].
% 296.71/297.03  10496 and(or(A,B),implies(B,not(A))) = equiv(B,not(A)).  [back_rewrite(281),rewrite([10455(6)])].
% 296.71/297.03  10497 equiv(A,B) = equiv(B,A).  [para(10190(a,1),202(a,1)),rewrite([202(3)])].
% 296.71/297.03  10498 strict_equiv(A,B) = strict_equiv(B,A).  [para(10190(a,1),203(a,1)),rewrite([203(3)])].
% 296.71/297.03  10499 is_a_theorem(strict_implies(and(A,B),B)).  [para(10190(a,1),208(a,1,1))].
% 296.71/297.03  10504 -is_a_theorem(and(strict_implies(A,B),strict_implies(C,A))) | is_a_theorem(strict_implies(C,B)).  [para(10190(a,1),271(a,1))].
% 296.71/297.03  10575 -is_a_theorem(A) | is_a_theorem(and(A,strict_implies(and(B,C),C))).  [resolve(10499,a,206,b)].
% 296.71/297.03  10595 -is_a_theorem(equiv(A,B)) | A = B.  [para(10497(a,1),213(a,1))].
% 296.71/297.03  10599 -is_a_theorem(strict_equiv(A,B)) | A = B.  [para(10498(a,1),205(a,1))].
% 296.71/297.03  10768 implies(A,or(B,B)) = implies(A,not(not(B))).  [para(9938(a,1),212(a,1,1,2)),rewrite([212(5)]),flip(a)].
% 296.71/297.03  10769 or(or(A,A),B) = or(not(not(A)),B).  [para(9938(a,1),219(a,1,1)),rewrite([219(4)]),flip(a)].
% 296.71/297.03  10785 not(not(not(or(A,A)))) = not(not(not(not(not(A))))).  [para(9938(a,1),9938(a,2,1,1)),rewrite([9662(3)])].
% 296.71/297.03  10962 is_a_theorem(and(strict_implies(A,A),strict_implies(and(B,C),C))).  [para(10190(a,1),9089(a,1,2,1))].
% 296.71/297.03  11008 is_a_theorem(strict_implies(and(A,and(B,C)),B)).  [resolve(607,a,271,a),rewrite([10190(2)])].
% 296.71/297.03  11034 is_a_theorem(strict_implies(and(A,and(B,C)),C)).  [para(10190(a,1),11008(a,1,1,2))].
% 296.71/297.03  11050 -is_a_theorem(A) | is_a_theorem(and(A,strict_implies(and(B,and(C,D)),D))).  [resolve(11034,a,206,b)].
% 296.71/297.03  11155 is_a_theorem(and(strict_implies(and(A,B),and(A,and(A,B))),strict_implies(and(C,D),D))).  [resolve(10575,a,9659,a)].
% 296.71/297.03  12106 and(strict_implies(A,not(not(B))),strict_implies(or(B,B),A)) = strict_equiv(A,not(not(B))).  [para(9921(a,2),203(a,1,2))].
% 296.71/297.03  12107 -is_a_theorem(or(A,A)) | -is_a_theorem(strict_implies(not(not(A)),B)) | is_a_theorem(B).  [para(9921(a,1),204(b,1))].
% 296.71/297.03  12852 strict_implies(A,or(B,B)) = strict_implies(A,not(not(B))).  [para(10768(a,1),201(a,1,1)),rewrite([201(4)]),flip(a)].
% 296.71/297.03  12853 or(A,or(B,B)) = or(A,not(not(B))).  [para(10768(a,1),219(a,1)),rewrite([219(4)]),flip(a)].
% 296.71/297.03  13452 strict_equiv(A,or(B,B)) = strict_equiv(A,not(not(B))).  [para(12852(a,1),203(a,1,1)),rewrite([12106(6)]),flip(a)].
% 296.71/297.03  13454 -is_a_theorem(A) | -is_a_theorem(strict_implies(A,or(B,B))) | is_a_theorem(not(not(B))).  [para(12852(a,2),204(b,1))].
% 296.71/297.03  13661 or(A,not(or(B,B))) = or(A,not(not(not(B)))).  [para(9662(a,2),12853(a,2,2,1)),rewrite([9662(3)]),flip(a)].
% 296.71/297.03  13667 or(or(A,A),not(not(B))) = or(not(not(A)),or(B,B)).  [para(12853(a,1),10769(a,1))].
% 296.71/297.03  13668 or(or(A,A),or(B,B)) = or(not(not(A)),not(not(B))).  [para(12853(a,1),10769(a,2))].
% 296.71/297.03  13758 -is_a_theorem(strict_equiv(A,not(not(B)))) | or(B,B) = A.  [para(13452(a,1),205(a,1))].
% 296.71/297.03  13759 -is_a_theorem(strict_equiv(A,or(B,B))) | not(not(B)) = A.  [para(13452(a,2),205(a,1))].
% 296.71/297.03  13764 strict_equiv(A,not(or(B,B))) = strict_equiv(A,not(not(not(B)))).  [para(9662(a,2),13452(a,2,2,1)),rewrite([9662(3)]),flip(a)].
% 296.71/297.03  15885 -is_a_theorem(and(strict_implies(or(A,A),B),strict_implies(C,not(not(A))))) | is_a_theorem(strict_implies(C,B)).  [para(9921(a,2),10504(a,1,1))].
% 296.71/297.03  17908 not(and(not(A),or(B,C))) = or(A,and(not(B),not(C))).  [para(2316(a,1),219(a,1))].
% 296.71/297.03  17914 not(and(A,or(B,C))) = not(and(A,or(C,B))).  [para(10190(a,1),2316(a,1,2)),rewrite([2316(4)])].
% 296.71/297.03  19747 or(or(A,A),not(or(B,B))) = or(not(not(A)),not(not(not(B)))).  [para(13661(a,1),10769(a,2))].
% 296.71/297.03  19790 -is_a_theorem(strict_equiv(A,not(not(not(B))))) | not(or(B,B)) = A.  [para(13764(a,1),205(a,1))].
% 296.71/297.03  19867 not(and(or(A,B),or(B,A))) = not(or(A,B)).  [para(9218(a,1),17914(a,1,1)),flip(a)].
% 296.71/297.03  20499 not(or(A,B)) = not(or(B,A)).  [para(10190(a,1),19867(a,1,1)),rewrite([19867(4)])].
% 296.71/297.03  20505 implies(A,or(B,C)) = implies(A,or(C,B)).  [para(20499(a,1),212(a,1,1,2)),rewrite([212(4)])].
% 296.71/297.03  20527 strict_implies(A,or(B,C)) = strict_implies(A,or(C,B)).  [para(20505(a,1),201(a,1,1)),rewrite([201(3)])].
% 296.71/297.03  20779 and(strict_implies(A,or(B,C)),strict_implies(or(C,B),A)) = strict_equiv(A,or(C,B)).  [para(20527(a,1),203(a,1,1))].
% 296.71/297.03  24399 or(A,and(not(B),not(C))) = implies(or(B,C),A).  [para(10190(a,1),17908(a,1,1)),rewrite([212(4)]),flip(a)].
% 296.71/297.03  24410 or(not(A),B) = or(B,not(A)).  [para(9218(a,1),24399(a,1,2)),rewrite([9675(4)]),flip(a)].
% 296.71/297.03  24413 implies(or(A,B),C) = implies(or(B,A),C).  [para(10190(a,1),24399(a,1,2)),rewrite([24399(4)])].
% 296.71/297.03  24454 implies(or(A,A),B) = or(B,not(A)).  [back_rewrite(9675),rewrite([24410(4)])].
% 296.71/297.03  24460 strict_implies(not(not(A)),B) = strict_implies(not(B),not(A)).  [para(24410(a,1),280(a,1,1)),rewrite([280(3)]),flip(a)].
% 296.71/297.03  24554 -is_a_theorem(or(A,A)) | -is_a_theorem(strict_implies(not(B),not(A))) | is_a_theorem(B).  [back_rewrite(12107),rewrite([24460(5)])].
% 296.71/297.03  24556 strict_implies(or(A,A),B) = strict_implies(not(B),not(A)).  [back_rewrite(9921),rewrite([24460(5)])].
% 296.71/297.03  24611 strict_implies(or(A,B),C) = strict_implies(or(B,A),C).  [para(24413(a,1),201(a,1,1)),rewrite([201(3)])].
% 296.71/297.03  24613 strict_equiv(A,or(B,C)) = strict_equiv(A,or(C,B)).  [back_rewrite(20779),rewrite([24611(4),203(5)])].
% 296.71/297.03  24715 is_a_theorem(strict_implies(or(A,A),A)).  [para(24556(a,2),9036(a,1))].
% 296.71/297.03  24719 strict_implies(or(A,A),not(B)) = strict_implies(or(B,B),not(A)).  [para(9662(a,2),24556(a,2,1))].
% 296.71/297.03  24720 is_a_theorem(and(strict_implies(or(A,A),A),strict_implies(B,B))).  [para(24556(a,2),9223(a,1,1))].
% 296.71/297.03  24728 is_a_theorem(and(strict_implies(and(A,B),A),strict_implies(or(C,C),C))).  [para(24556(a,2),9088(a,1,2))].
% 296.71/297.03  25105 -is_a_theorem(A) | is_a_theorem(and(A,strict_implies(or(B,B),B))).  [resolve(24715,a,206,b)].
% 296.71/297.03  25163 is_a_theorem(and(strict_implies(or(A,A),A),strict_implies(or(B,B),B))).  [para(24556(a,2),24720(a,1,2))].
% 296.71/297.03  25279 -is_a_theorem(strict_equiv(A,or(B,C))) | or(C,B) = A.  [para(24613(a,1),205(a,1))].
% 296.71/297.03  25305 or(A,B) = or(B,A).  [para(9658(a,1),25279(a,1)),unit_del(a,9036)].
% 296.71/297.03  25326 strict_implies(not(A),B) = strict_implies(not(B),A).  [para(25305(a,1),280(a,1,1)),rewrite([280(2)])].
% 296.71/297.03  25327 and(or(A,B),implies(A,not(B))) = equiv(A,not(B)).  [para(25305(a,1),10496(a,1,1))].
% 296.71/297.03  25330 or(or(A,A),or(B,B)) = or(not(not(B)),not(not(A))).  [para(13668(a,2),25305(a,2)),flip(a)].
% 296.71/297.03  25350 and(strict_implies(A,not(B)),strict_implies(not(A),B)) = strict_equiv(A,not(B)).  [para(25326(a,1),203(a,1,1)),rewrite([10190(5),10498(7)])].
% 296.71/297.03  25445 is_a_theorem(strict_implies(not(A),not(and(A,B)))).  [resolve(24728,a,10504,a),rewrite([9662(3),25326(4)])].
% 296.71/297.03  25477 -is_a_theorem(not(A)) | is_a_theorem(not(and(A,B))).  [resolve(25445,a,204,b)].
% 296.71/297.03  25483 is_a_theorem(strict_implies(not(A),implies(A,B))).  [para(212(a,1),25445(a,1,2))].
% 296.71/297.03  25487 is_a_theorem(strict_implies(or(A,A),implies(B,A))).  [para(9662(a,2),25445(a,1,1)),rewrite([10190(3),212(4)])].
% 296.71/297.03  25529 is_a_theorem(and(strict_implies(not(A),implies(A,B)),strict_implies(and(C,and(D,E)),E))).  [resolve(25483,a,11050,a)].
% 296.71/297.03  25570 is_a_theorem(strict_implies(or(A,A),or(A,B))).  [para(9662(a,2),25483(a,1,1)),rewrite([219(3)])].
% 296.71/297.03  25572 is_a_theorem(strict_implies(not(not(not(A))),or(B,not(A)))).  [para(9938(a,1),25483(a,1,1)),rewrite([24454(5)])].
% 296.71/297.03  25738 -is_a_theorem(not(not(not(or(A,A))))) | is_a_theorem(implies(B,not(not(not(A))))).  [para(10785(a,2),25477(a,1)),rewrite([10190(10),212(11)])].
% 296.71/297.03  25773 is_a_theorem(and(strict_implies(or(A,A),implies(B,A)),strict_implies(C,C))).  [resolve(25487,a,9098,a)].
% 296.71/297.03  25858 is_a_theorem(and(strict_implies(or(A,A),or(A,B)),strict_implies(C,C))).  [resolve(25570,a,9098,a)].
% 296.71/297.03  26323 is_a_theorem(strict_implies(not(not(implies(A,B))),or(C,implies(A,B)))).  [para(212(a,1),25572(a,1,1,1,1)),rewrite([212(6)])].
% 296.71/297.03  27159 is_a_theorem(strict_implies(not(A),not(or(A,A)))).  [resolve(25163,a,10504,a),rewrite([9662(3),25326(4)])].
% 296.71/297.03  27199 is_a_theorem(strict_implies(not(A),not(not(not(A))))).  [para(9662(a,1),27159(a,1,2,1))].
% 296.71/297.03  27346 is_a_theorem(and(strict_implies(not(A),not(not(not(A)))),strict_implies(B,B))).  [resolve(27199,a,9098,a)].
% 296.71/297.03  29532 -is_a_theorem(not(not(implies(A,B)))) | is_a_theorem(or(C,implies(A,B))).  [resolve(26323,a,204,b)].
% 296.71/297.03  30965 is_a_theorem(strict_equiv(and(A,B),and(A,and(A,B)))).  [para(203(a,1),11155(a,1))].
% 296.71/297.03  30966 and(A,and(A,B)) = and(A,B).  [resolve(30965,a,10599,a),flip(a)].
% 296.71/297.03  34001 is_a_theorem(strict_equiv(not(A),not(not(not(A))))).  [para(25350(a,1),27346(a,1))].
% 296.71/297.03  34276 not(or(A,A)) = not(A).  [resolve(34001,a,19790,a)].
% 296.71/297.03  34277 not(not(not(A))) = not(A).  [resolve(34001,a,13758,a),rewrite([9662(3)])].
% 296.71/297.03  34470 -is_a_theorem(not(A)) | is_a_theorem(implies(B,not(A))).  [back_rewrite(25738),rewrite([34276(2),34277(3),34277(5)])].
% 296.71/297.03  34570 or(or(A,A),not(B)) = or(not(B),not(not(A))).  [back_rewrite(19747),rewrite([34276(3),34277(8),25305(7)])].
% 296.71/297.03  34912 implies(A,or(B,B)) = implies(A,B).  [para(34276(a,1),212(a,1,1,2)),rewrite([212(3)]),flip(a)].
% 296.71/297.03  34913 not(not(implies(A,B))) = implies(A,B).  [para(212(a,1),34276(a,2)),rewrite([9662(5),212(3)])].
% 296.71/297.03  34914 or(A,or(B,B)) = or(B,A).  [para(34276(a,1),219(a,1,1)),rewrite([219(2),25305(3)]),flip(a)].
% 296.71/297.03  34956 or(not(not(A)),not(not(B))) = or(B,not(not(A))).  [para(34276(a,1),13667(a,2,1,1)),rewrite([9662(3),34276(2),34914(9)])].
% 296.71/297.03  35090 implies(A,not(not(B))) = implies(A,B).  [back_rewrite(10768),rewrite([34912(2)]),flip(a)].
% 296.71/297.03  35121 -is_a_theorem(implies(A,B)) | is_a_theorem(or(C,implies(A,B))).  [back_rewrite(29532),rewrite([34913(3)])].
% 296.71/297.03  35159 or(A,not(not(B))) = or(B,A).  [back_rewrite(25330),rewrite([34914(3),34914(2),25305(6),34956(6)]),flip(a)].
% 296.71/297.03  35287 or(or(A,A),not(B)) = or(A,not(B)).  [back_rewrite(34570),rewrite([35159(7)])].
% 296.71/297.03  35529 -is_a_theorem(implies(A,B)) | is_a_theorem(implies(C,implies(A,B))).  [para(212(a,1),34470(a,1)),rewrite([212(5)])].
% 296.71/297.03  35596 strict_implies(A,or(B,B)) = strict_implies(A,B).  [para(34912(a,1),201(a,1,1)),rewrite([201(2)]),flip(a)].
% 296.71/297.03  35656 -is_a_theorem(A) | -is_a_theorem(strict_implies(A,B)) | is_a_theorem(not(not(B))).  [back_rewrite(13454),rewrite([35596(3)])].
% 296.71/297.03  35657 strict_implies(A,not(not(B))) = strict_implies(A,B).  [back_rewrite(12852),rewrite([35596(2)]),flip(a)].
% 296.71/297.03  35745 -is_a_theorem(and(strict_implies(or(A,A),B),strict_implies(C,A))) | is_a_theorem(strict_implies(C,B)).  [back_rewrite(15885),rewrite([35657(5)])].
% 296.71/297.03  35831 not(not(or(A,B))) = or(A,B).  [para(219(a,1),34913(a,1,1,1)),rewrite([219(5)])].
% 296.71/297.03  36142 strict_implies(not(A),not(or(B,C))) = strict_implies(or(B,C),A).  [para(35831(a,1),25326(a,1,1)),flip(a)].
% 296.71/297.03  36593 -is_a_theorem(A) | is_a_theorem(not(not(A))).  [resolve(35656,b,9036,a)].
% 296.71/297.03  37150 is_a_theorem(not(not(and(strict_implies(A,A),strict_implies(and(B,C),C))))).  [resolve(36593,a,10962,a)].
% 296.71/297.03  37244 is_a_theorem(not(not(strict_implies(A,A)))).  [resolve(36593,a,9036,a)].
% 296.71/297.03  37810 is_a_theorem(implies(A,strict_implies(B,B))).  [resolve(37244,a,34470,a),rewrite([35090(4)])].
% 296.71/297.03  37960 is_a_theorem(or(A,implies(B,strict_implies(C,C)))).  [resolve(37810,a,35121,a)].
% 296.71/297.03  37998 -is_a_theorem(A) | is_a_theorem(and(A,implies(B,strict_implies(C,C)))).  [resolve(37810,a,206,b)].
% 296.71/297.03  39091 is_a_theorem(or(A,or(B,strict_implies(C,C)))).  [para(219(a,1),37960(a,1,2))].
% 296.71/297.03  39594 -is_a_theorem(strict_implies(or(A,strict_implies(B,B)),C)) | is_a_theorem(C).  [resolve(39091,a,24554,a),rewrite([36142(5)])].
% 296.71/297.03  49881 equiv(or(A,A),not(not(B))) = equiv(not(A),not(B)).  [para(35287(a,1),25327(a,1,1)),rewrite([35090(6),24454(4),2429(5)]),flip(a)].
% 296.71/297.03  57962 is_a_theorem(implies(A,and(strict_implies(B,B),strict_implies(and(C,D),D)))).  [resolve(37150,a,34470,a),rewrite([35090(7)])].
% 296.71/297.03  58427 is_a_theorem(strict_implies(and(A,and(B,not(C))),implies(C,D))).  [resolve(25529,a,10504,a)].
% 296.71/297.03  61018 is_a_theorem(implies(A,and(strict_implies(B,B),strict_implies(C,C)))).  [para(9218(a,1),57962(a,1,2,2,1))].
% 296.71/297.03  61020 is_a_theorem(implies(A,implies(B,and(strict_implies(C,C),strict_implies(D,D))))).  [resolve(61018,a,35529,a)].
% 296.71/297.03  68037 is_a_theorem(strict_implies(A,or(A,B))).  [resolve(35745,a,25858,a)].
% 296.71/297.03  68040 is_a_theorem(strict_implies(A,implies(B,A))).  [resolve(35745,a,25773,a)].
% 296.71/297.03  68059 is_a_theorem(and(strict_implies(A,or(A,B)),strict_implies(or(C,C),C))).  [resolve(68037,a,25105,a)].
% 296.71/297.03  68099 -is_a_theorem(A) | is_a_theorem(and(A,strict_implies(B,implies(C,B)))).  [resolve(68040,a,206,b)].
% 296.71/297.03  69155 is_a_theorem(strict_equiv(A,or(A,A))).  [para(203(a,1),68059(a,1))].
% 296.71/297.03  69178 not(not(A)) = A.  [resolve(69155,a,13759,a)].
% 296.71/297.03  69179 or(A,A) = A.  [resolve(69155,a,10599,a),flip(a)].
% 296.71/297.03  69272 equiv(not(A),not(B)) = equiv(A,B).  [back_rewrite(49881),rewrite([69179(1),69178(2)]),flip(a)].
% 296.71/297.03  69668 strict_implies(A,not(B)) = strict_implies(B,not(A)).  [back_rewrite(24719),rewrite([69179(1),69179(3)])].
% 296.71/297.03  69676 or(A,not(B)) = implies(B,A).  [back_rewrite(24454),rewrite([69179(1)]),flip(a)].
% 296.71/297.03  70199 not(and(A,B)) = implies(A,not(B)).  [para(69178(a,1),212(a,1,1,2))].
% 296.71/297.03  70200 not(implies(A,B)) = and(A,not(B)).  [para(212(a,1),69178(a,1,1))].
% 296.71/297.03  70799 -is_a_theorem(strict_implies(strict_implies(A,A),B)) | is_a_theorem(B).  [para(69179(a,1),39594(a,1,1))].
% 296.71/297.03  74614 -is_a_theorem(equiv(A,B)) | not(A) = not(B).  [para(69272(a,1),10595(a,1))].
% 296.71/297.03  74706 implies(A,not(B)) = implies(B,not(A)).  [para(10190(a,1),70199(a,1,1)),rewrite([70199(2)])].
% 296.71/297.03  74708 implies(A,implies(A,not(B))) = implies(A,not(B)).  [para(30966(a,1),70199(a,1,1)),rewrite([70199(2),70199(4)]),flip(a)].
% 296.71/297.03  74712 or(A,implies(B,not(C))) = implies(and(B,C),A).  [para(70199(a,1),69676(a,1,2))].
% 296.71/297.03  74721 implies(and(A,not(B)),C) = or(C,implies(A,B)).  [para(70200(a,1),219(a,1,1)),rewrite([25305(5)])].
% 296.71/297.03  74722 and(not(A),not(B)) = not(or(A,B)).  [para(219(a,1),70200(a,1,1)),flip(a)].
% 296.71/297.03  76534 is_a_theorem(strict_implies(and(A,not(or(B,C))),implies(C,D))).  [para(74722(a,1),58427(a,1,1,2))].
% 296.71/297.03  77356 implies(A,implies(A,B)) = implies(A,B).  [para(69178(a,1),74708(a,1,2,2)),rewrite([69178(4)])].
% 296.71/297.03  77363 strict_implies(A,implies(A,B)) = strict_implies(A,B).  [para(77356(a,1),201(a,1,1)),rewrite([201(2)]),flip(a)].
% 296.71/297.03  78064 is_a_theorem(strict_implies(not(or(A,or(B,C))),implies(C,D))).  [para(74722(a,1),76534(a,1,1))].
% 296.71/297.03  78325 is_a_theorem(strict_implies(and(A,not(B)),or(C,or(A,D)))).  [para(25326(a,1),78064(a,1)),rewrite([70200(2),25305(3)])].
% 296.71/297.03  78386 is_a_theorem(strict_implies(and(A,B),or(C,or(A,D)))).  [para(69178(a,1),78325(a,1,1,2))].
% 296.71/297.03  78397 is_a_theorem(strict_implies(and(A,B),or(C,implies(D,A)))).  [para(69676(a,1),78386(a,1,2,2))].
% 296.71/297.03  78418 is_a_theorem(strict_implies(and(A,not(B)),implies(and(B,C),D))).  [para(74706(a,1),78397(a,1,2,2)),rewrite([10190(2),74712(5)])].
% 296.71/297.03  78448 is_a_theorem(strict_implies(and(A,not(A)),B)).  [para(77363(a,1),78418(a,1))].
% 296.71/297.03  78480 is_a_theorem(strict_implies(A,implies(B,B))).  [para(69668(a,1),78448(a,1)),rewrite([70199(3),69178(2)])].
% 296.71/297.03  78691 is_a_theorem(and(strict_implies(A,implies(B,B)),strict_implies(C,implies(D,C)))).  [resolve(78480,a,68099,a)].
% 296.71/297.03  83159 is_a_theorem(strict_equiv(implies(A,A),implies(B,implies(A,A)))).  [para(203(a,1),78691(a,1)),rewrite([10498(4)])].
% 296.71/297.03  83250 implies(A,implies(B,B)) = implies(B,B).  [resolve(83159,a,10599,a),flip(a)].
% 296.71/297.03  83257 strict_implies(A,implies(B,B)) = strict_implies(B,B).  [para(83250(a,1),201(a,1,1)),rewrite([201(2)]),flip(a)].
% 296.71/297.03  83258 or(A,implies(B,B)) = implies(B,B).  [para(83250(a,1),219(a,1)),flip(a)].
% 296.71/297.03  83311 strict_implies(and(A,not(A)),B) = strict_implies(A,A).  [para(83257(a,1),25326(a,1)),rewrite([70200(3)]),flip(a)].
% 296.71/297.03  83467 strict_implies(A,A) = strict_implies(B,B).  [para(83311(a,1),83257(a,1))].
% 296.71/297.03  83468 strict_implies(A,A) = c_0.  [new_symbol(83467)].
% 296.71/297.03  84458 -is_a_theorem(strict_implies(c_0,A)) | is_a_theorem(A).  [back_rewrite(70799),rewrite([83468(1)])].
% 296.71/297.03  84777 is_a_theorem(implies(A,implies(B,c_0))).  [back_rewrite(61020),rewrite([83468(1),83468(2),9218(3)])].
% 296.71/297.03  85318 -is_a_theorem(A) | is_a_theorem(and(A,implies(B,c_0))).  [back_rewrite(37998),rewrite([83468(2)])].
% 296.71/297.03  88880 is_a_theorem(and(implies(A,implies(B,c_0)),implies(C,c_0))).  [resolve(85318,a,84777,a)].
% 296.71/297.03  92186 is_a_theorem(equiv(c_0,implies(A,c_0))).  [para(202(a,1),88880(a,1))].
% 296.71/297.03  92203 and(A,not(c_0)) = not(c_0).  [resolve(92186,a,74614,a),rewrite([70200(5)]),flip(a)].
% 296.71/297.03  92215 implies(A,c_0) = c_0.  [resolve(92186,a,10595,a),flip(a)].
% 296.71/297.03  92348 or(c_0,implies(A,B)) = c_0.  [para(92215(a,1),74721(a,1)),flip(a)].
% 296.71/297.03  92609 implies(A,A) = c_0.  [para(83250(a,1),92348(a,1,2)),rewrite([83258(3)])].
% 296.71/297.03  92644 and(A,not(A)) = not(c_0).  [para(92609(a,1),70200(a,1,1)),flip(a)].
% 296.71/297.03  92931 is_a_theorem(strict_implies(c_0,implies(and(A,B),A))).  [para(92644(a,1),10306(a,1,2,2)),rewrite([10190(2),92203(6),69668(6),70199(5),70199(4),219(5),74712(4)])].
% 296.71/297.03  93270 is_a_theorem(implies(and(A,B),A)).  [resolve(92931,a,84458,a)].
% 296.71/297.03  93358 is_a_theorem(implies(and(A,B),B)).  [para(10190(a,1),93270(a,1,1))].
% 296.71/297.03  93434 is_a_theorem(implies(A,or(B,A))).  [para(74722(a,1),93358(a,1,1)),rewrite([74706(4),69178(3)])].
% 296.71/297.03  93435 $F.  [resolve(93434,a,214,a)].
% 296.71/297.03  
% 296.71/297.03  % SZS output end Refutation
% 296.71/297.03  ============================== end of proof ==========================
% 296.71/297.03  
% 296.71/297.03  ============================== STATISTICS ============================
% 296.71/297.03  
% 296.71/297.03  Given=34237. Generated=16897984. Kept=93370. proofs=1.
% 296.71/297.03  Usable=15521. Sos=6323. Demods=197. Limbo=59, Disabled=71601. Hints=0.
% 296.71/297.03  Megabytes=114.11.
% 296.71/297.03  User_CPU=287.17, System_CPU=8.84, Wall_clock=296.
% 296.71/297.03  
% 296.71/297.03  ============================== end of statistics =====================
% 296.71/297.03  
% 296.71/297.03  ============================== end of search =========================
% 296.71/297.03  
% 296.71/297.03  THEOREM PROVED
% 296.71/297.03  % SZS status Theorem
% 296.71/297.03  
% 296.71/297.03  Exiting with 1 proof.
% 296.71/297.03  
% 296.71/297.03  Process 19223 exit (max_proofs) Sun Jul  3 15:08:50 2022
% 296.71/297.03  Prover9 interrupted
%------------------------------------------------------------------------------