TSTP Solution File: LCL458+1 by Prover9---1109a

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Prover9---1109a
% Problem  : LCL458+1 : TPTP v8.1.0. Released v3.3.0.
% 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 : Sun Jul 17 13:46:58 EDT 2022

% Result   : Theorem 36.25s 36.52s
% Output   : Refutation 36.25s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.11  % Problem  : LCL458+1 : TPTP v8.1.0. Released v3.3.0.
% 0.10/0.12  % Command  : tptp2X_and_run_prover9 %d %s
% 0.12/0.32  % Computer : n013.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 : Sat Jul  2 19:07:44 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.78/1.07  ============================== Prover9 ===============================
% 0.78/1.07  Prover9 (32) version 2009-11A, November 2009.
% 0.78/1.07  Process 20181 was started by sandbox2 on n013.cluster.edu,
% 0.78/1.07  Sat Jul  2 19:07:45 2022
% 0.78/1.07  The command was "/export/starexec/sandbox2/solver/bin/prover9 -t 300 -f /tmp/Prover9_19780_n013.cluster.edu".
% 0.78/1.07  ============================== end of head ===========================
% 0.78/1.07  
% 0.78/1.07  ============================== INPUT =================================
% 0.78/1.07  
% 0.78/1.07  % Reading from file /tmp/Prover9_19780_n013.cluster.edu
% 0.78/1.07  
% 0.78/1.07  set(prolog_style_variables).
% 0.78/1.07  set(auto2).
% 0.78/1.07      % set(auto2) -> set(auto).
% 0.78/1.07      % set(auto) -> set(auto_inference).
% 0.78/1.07      % set(auto) -> set(auto_setup).
% 0.78/1.07      % set(auto_setup) -> set(predicate_elim).
% 0.78/1.07      % set(auto_setup) -> assign(eq_defs, unfold).
% 0.78/1.07      % set(auto) -> set(auto_limits).
% 0.78/1.07      % set(auto_limits) -> assign(max_weight, "100.000").
% 0.78/1.07      % set(auto_limits) -> assign(sos_limit, 20000).
% 0.78/1.07      % set(auto) -> set(auto_denials).
% 0.78/1.07      % set(auto) -> set(auto_process).
% 0.78/1.07      % set(auto2) -> assign(new_constants, 1).
% 0.78/1.07      % set(auto2) -> assign(fold_denial_max, 3).
% 0.78/1.07      % set(auto2) -> assign(max_weight, "200.000").
% 0.78/1.07      % set(auto2) -> assign(max_hours, 1).
% 0.78/1.07      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 0.78/1.07      % set(auto2) -> assign(max_seconds, 0).
% 0.78/1.07      % set(auto2) -> assign(max_minutes, 5).
% 0.78/1.07      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 0.78/1.07      % set(auto2) -> set(sort_initial_sos).
% 0.78/1.07      % set(auto2) -> assign(sos_limit, -1).
% 0.78/1.07      % set(auto2) -> assign(lrs_ticks, 3000).
% 0.78/1.07      % set(auto2) -> assign(max_megs, 400).
% 0.78/1.07      % set(auto2) -> assign(stats, some).
% 0.78/1.07      % set(auto2) -> clear(echo_input).
% 0.78/1.07      % set(auto2) -> set(quiet).
% 0.78/1.07      % set(auto2) -> clear(print_initial_clauses).
% 0.78/1.07      % set(auto2) -> clear(print_given).
% 0.78/1.07  assign(lrs_ticks,-1).
% 0.78/1.07  assign(sos_limit,10000).
% 0.78/1.07  assign(order,kbo).
% 0.78/1.07  set(lex_order_vars).
% 0.78/1.07  clear(print_given).
% 0.78/1.07  
% 0.78/1.07  % formulas(sos).  % not echoed (53 formulas)
% 0.78/1.07  
% 0.78/1.07  ============================== end of input ==========================
% 0.78/1.07  
% 0.78/1.07  % From the command line: assign(max_seconds, 300).
% 0.78/1.07  
% 0.78/1.07  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 0.78/1.07  
% 0.78/1.07  % Formulas that are not ordinary clauses:
% 0.78/1.07  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].
% 0.78/1.07  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].
% 0.78/1.07  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].
% 0.78/1.07  4 implies_1 <-> (all X all Y is_a_theorem(implies(X,implies(Y,X)))) # label(implies_1) # label(axiom) # label(non_clause).  [assumption].
% 0.78/1.07  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].
% 0.78/1.07  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].
% 0.78/1.07  7 and_1 <-> (all X all Y is_a_theorem(implies(and(X,Y),X))) # label(and_1) # label(axiom) # label(non_clause).  [assumption].
% 0.78/1.07  8 and_2 <-> (all X all Y is_a_theorem(implies(and(X,Y),Y))) # label(and_2) # label(axiom) # label(non_clause).  [assumption].
% 0.78/1.07  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].
% 0.78/1.07  10 or_1 <-> (all X all Y is_a_theorem(implies(X,or(X,Y)))) # label(or_1) # label(axiom) # label(non_clause).  [assumption].
% 0.78/1.07  11 or_2 <-> (all X all Y is_a_theorem(implies(Y,or(X,Y)))) # label(or_2) # label(axiom) # label(non_clause).  [assumption].
% 0.78/1.07  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].
% 0.78/1.07  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].
% 0.78/1.07  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].
% 1.74/2.01  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].
% 1.74/2.01  16 kn1 <-> (all P is_a_theorem(implies(P,and(P,P)))) # label(kn1) # label(axiom) # label(non_clause).  [assumption].
% 1.74/2.01  17 kn2 <-> (all P all Q is_a_theorem(implies(and(P,Q),P))) # label(kn2) # label(axiom) # label(non_clause).  [assumption].
% 1.74/2.01  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].
% 1.74/2.01  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].
% 1.74/2.01  20 cn2 <-> (all P all Q is_a_theorem(implies(P,implies(not(P),Q)))) # label(cn2) # label(axiom) # label(non_clause).  [assumption].
% 1.74/2.01  21 cn3 <-> (all P is_a_theorem(implies(implies(not(P),P),P))) # label(cn3) # label(axiom) # label(non_clause).  [assumption].
% 1.74/2.01  22 r1 <-> (all P is_a_theorem(implies(or(P,P),P))) # label(r1) # label(axiom) # label(non_clause).  [assumption].
% 1.74/2.01  23 r2 <-> (all P all Q is_a_theorem(implies(Q,or(P,Q)))) # label(r2) # label(axiom) # label(non_clause).  [assumption].
% 1.74/2.01  24 r3 <-> (all P all Q is_a_theorem(implies(or(P,Q),or(Q,P)))) # label(r3) # label(axiom) # label(non_clause).  [assumption].
% 1.74/2.01  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].
% 1.74/2.01  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].
% 1.74/2.01  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].
% 1.74/2.01  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].
% 1.74/2.01  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].
% 1.74/2.01  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].
% 1.74/2.01  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].
% 1.74/2.01  
% 1.74/2.01  ============================== end of process non-clausal formulas ===
% 1.74/2.01  
% 1.74/2.01  ============================== PROCESS INITIAL CLAUSES ===============
% 1.74/2.01  
% 1.74/2.01  ============================== PREDICATE ELIMINATION =================
% 1.74/2.01  
% 1.74/2.01  ============================== end predicate elimination =============
% 1.74/2.01  
% 1.74/2.01  Auto_denials:  (non-Horn, no changes).
% 1.74/2.01  
% 1.74/2.01  Term ordering decisions:
% 1.74/2.01  
% 1.74/2.01  % Assigning unary symbol not kb_weight 0 and highest precedence (93).
% 1.74/2.01  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. implies=1. or=1. and=1. equiv=1. not=0.
% 1.74/2.01  
% 1.74/2.01  ============================== end of process initial clauses ========
% 1.74/2.01  
% 1.74/2.01  ============================== CLAUSES FOR SEARCH ====================
% 1.74/2.01  
% 1.74/2.01  ============================== end of clauses for search =============
% 1.74/2.01  
% 1.74/2.01  ============================== SEARCH ================================
% 1.74/2.01  
% 1.74/2.01  % Starting search at 0.02 seconds.
% 1.74/2.01  
% 1.74/2.01  Low Water (keep): wt=34.000, iters=3336
% 1.74/2.01  
% 1.74/2.01  Low Water (keep): wt=28.000, iters=3350
% 1.74/2.01  
% 1.74/2.01  Low Water (keep): wt=22.000, iters=3353
% 1.74/2.01  
% 1.74/2.01  Low Water (keep): wt=21.000, iters=3352
% 1.74/2.01  
% 1.74/2.01  Low Water (keep): wt=19.000, iters=3357
% 1.74/2.01  
% 1.74/2.01  Low Water (keep): wt=17.000, iters=3344
% 1.74/2.01  
% 1.74/2.01  Low Water (keep): wt=16.000, iters=3345
% 1.74/2.01  
% 1.74/2.01  Low Water (keep): wt=15.000, iters=3333
% 1.74/2.01  
% 1.74/2.01  Low Water (keep): wt=14.000, iters=3389
% 1.74/2.01  
% 1.74/2.01  Low Water (keep): wt=13.000, iters=3354
% 36.25/36.52  
% 36.25/36.52  NOTE: Back_subsumption disabled, ratio of kept to back_subsumed is 40 (0.00 of 1.03 sec).
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=3496, wt=41.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=3494, wt=40.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=4692, wt=39.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=4690, wt=38.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=5197, wt=37.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=5195, wt=36.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=5150, wt=35.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=5199, wt=34.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=5148, wt=33.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=5201, wt=32.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=5192, wt=31.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=5204, wt=30.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=5196, wt=29.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=5207, wt=28.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=12619, wt=21.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=12622, wt=20.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=12753, wt=12.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=12755, wt=11.000
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=13077, wt=10.000
% 36.25/36.52  
% 36.25/36.52  Low Water (keep): wt=12.000, iters=3449
% 36.25/36.52  
% 36.25/36.52  Low Water (displace): id=18783, wt=9.000
% 36.25/36.52  
% 36.25/36.52  Low Water (keep): wt=11.000, iters=3334
% 36.25/36.52  
% 36.25/36.52  Low Water (keep): wt=10.000, iters=3333
% 36.25/36.52  
% 36.25/36.52  ============================== PROOF =================================
% 36.25/36.52  % SZS status Theorem
% 36.25/36.52  % SZS output start Refutation
% 36.25/36.52  
% 36.25/36.52  % Proof 1 at 33.34 (+ 2.12) seconds.
% 36.25/36.52  % Length of proof is 262.
% 36.25/36.52  % Level of proof is 43.
% 36.25/36.52  % Maximum clause weight is 20.000.
% 36.25/36.52  % Given clauses 5295.
% 36.25/36.52  
% 36.25/36.52  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].
% 36.25/36.52  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].
% 36.25/36.52  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].
% 36.25/36.52  4 implies_1 <-> (all X all Y is_a_theorem(implies(X,implies(Y,X)))) # label(implies_1) # label(axiom) # label(non_clause).  [assumption].
% 36.25/36.52  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].
% 36.25/36.52  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].
% 36.25/36.52  7 and_1 <-> (all X all Y is_a_theorem(implies(and(X,Y),X))) # label(and_1) # label(axiom) # label(non_clause).  [assumption].
% 36.25/36.52  8 and_2 <-> (all X all Y is_a_theorem(implies(and(X,Y),Y))) # label(and_2) # label(axiom) # label(non_clause).  [assumption].
% 36.25/36.52  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].
% 36.25/36.52  10 or_1 <-> (all X all Y is_a_theorem(implies(X,or(X,Y)))) # label(or_1) # label(axiom) # label(non_clause).  [assumption].
% 36.25/36.52  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].
% 36.25/36.52  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].
% 36.25/36.52  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].
% 36.25/36.52  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].
% 36.25/36.52  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].
% 36.25/36.52  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].
% 36.25/36.52  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].
% 36.25/36.52  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].
% 36.25/36.52  32 op_or # label(hilbert_op_or) # label(axiom).  [assumption].
% 36.25/36.52  33 op_implies_and # label(hilbert_op_implies_and) # label(axiom).  [assumption].
% 36.25/36.52  34 op_equiv # label(hilbert_op_equiv) # label(axiom).  [assumption].
% 36.25/36.52  35 modus_ponens # label(hilbert_modus_ponens) # label(axiom).  [assumption].
% 36.25/36.52  36 modus_tollens # label(hilbert_modus_tollens) # label(axiom).  [assumption].
% 36.25/36.52  37 implies_1 # label(hilbert_implies_1) # label(axiom).  [assumption].
% 36.25/36.52  38 implies_2 # label(hilbert_implies_2) # label(axiom).  [assumption].
% 36.25/36.52  39 implies_3 # label(hilbert_implies_3) # label(axiom).  [assumption].
% 36.25/36.52  40 and_1 # label(hilbert_and_1) # label(axiom).  [assumption].
% 36.25/36.52  41 and_2 # label(hilbert_and_2) # label(axiom).  [assumption].
% 36.25/36.52  42 and_3 # label(hilbert_and_3) # label(axiom).  [assumption].
% 36.25/36.52  43 or_1 # label(hilbert_or_1) # label(axiom).  [assumption].
% 36.25/36.52  45 or_3 # label(hilbert_or_3) # label(axiom).  [assumption].
% 36.25/36.52  48 equivalence_3 # label(hilbert_equivalence_3) # label(axiom).  [assumption].
% 36.25/36.52  49 substitution_of_equivalents # label(substitution_of_equivalents) # label(axiom).  [assumption].
% 36.25/36.52  50 op_implies_or # label(principia_op_implies_or) # label(axiom).  [assumption].
% 36.25/36.52  51 op_and # label(principia_op_and) # label(axiom).  [assumption].
% 36.25/36.52  52 -r5 # label(principia_r5) # label(negated_conjecture).  [assumption].
% 36.25/36.52  53 -implies_1 | is_a_theorem(implies(A,implies(B,A))) # label(implies_1) # label(axiom).  [clausify(4)].
% 36.25/36.52  54 is_a_theorem(implies(A,implies(B,A))).  [copy(53),unit_del(a,37)].
% 36.25/36.52  56 -and_1 | is_a_theorem(implies(and(A,B),A)) # label(and_1) # label(axiom).  [clausify(7)].
% 36.25/36.52  57 is_a_theorem(implies(and(A,B),A)).  [copy(56),unit_del(a,40)].
% 36.25/36.52  59 -and_2 | is_a_theorem(implies(and(A,B),B)) # label(and_2) # label(axiom).  [clausify(8)].
% 36.25/36.52  60 is_a_theorem(implies(and(A,B),B)).  [copy(59),unit_del(a,41)].
% 36.25/36.52  62 -or_1 | is_a_theorem(implies(A,or(A,B))) # label(or_1) # label(axiom).  [clausify(10)].
% 36.25/36.52  63 is_a_theorem(implies(A,or(A,B))).  [copy(62),unit_del(a,43)].
% 36.25/36.52  76 -substitution_of_equivalents | -is_a_theorem(equiv(A,B)) | B = A # label(substitution_of_equivalents) # label(axiom).  [clausify(2)].
% 36.25/36.52  77 -is_a_theorem(equiv(A,B)) | B = A.  [copy(76),unit_del(a,49)].
% 36.25/36.52  82 -modus_ponens | -is_a_theorem(A) | -is_a_theorem(implies(A,B)) | is_a_theorem(B) # label(modus_ponens) # label(axiom).  [clausify(1)].
% 36.25/36.52  83 -is_a_theorem(A) | -is_a_theorem(implies(A,B)) | is_a_theorem(B).  [copy(82),unit_del(a,35)].
% 36.25/36.52  84 -and_3 | is_a_theorem(implies(A,implies(B,and(A,B)))) # label(and_3) # label(axiom).  [clausify(9)].
% 36.25/36.52  85 is_a_theorem(implies(A,implies(B,and(A,B)))).  [copy(84),unit_del(a,42)].
% 36.25/36.52  95 -op_implies_or | or(not(A),B) = implies(A,B) # label(op_implies_or) # label(axiom).  [clausify(30)].
% 36.25/36.52  96 or(not(A),B) = implies(A,B).  [copy(95),unit_del(a,50)].
% 36.25/36.52  97 -op_implies_and | not(and(A,not(B))) = implies(A,B) # label(op_implies_and) # label(axiom).  [clausify(29)].
% 36.25/36.52  98 not(and(A,not(B))) = implies(A,B).  [copy(97),unit_del(a,33)].
% 36.25/36.52  99 -modus_tollens | is_a_theorem(implies(implies(not(A),not(B)),implies(B,A))) # label(modus_tollens) # label(axiom).  [clausify(3)].
% 36.25/36.52  100 is_a_theorem(implies(implies(not(A),not(B)),implies(B,A))).  [copy(99),unit_del(a,36)].
% 36.25/36.52  102 -implies_2 | is_a_theorem(implies(implies(A,implies(A,B)),implies(A,B))) # label(implies_2) # label(axiom).  [clausify(5)].
% 36.25/36.52  103 is_a_theorem(implies(implies(A,implies(A,B)),implies(A,B))).  [copy(102),unit_del(a,38)].
% 36.25/36.52  105 -op_or | or(A,B) = not(and(not(A),not(B))) # label(op_or) # label(axiom).  [clausify(27)].
% 36.25/36.52  106 or(A,B) = implies(not(A),B).  [copy(105),rewrite([98(6)]),unit_del(a,32)].
% 36.25/36.52  107 -op_and | and(A,B) = not(or(not(A),not(B))) # label(op_and) # label(axiom).  [clausify(28)].
% 36.25/36.52  108 not(implies(not(not(A)),not(B))) = and(A,B).  [copy(107),rewrite([106(5)]),flip(b),unit_del(a,51)].
% 36.25/36.52  109 -op_equiv | and(implies(A,B),implies(B,A)) = equiv(A,B) # label(op_equiv) # label(axiom).  [clausify(31)].
% 36.25/36.52  110 and(implies(A,B),implies(B,A)) = equiv(A,B).  [copy(109),unit_del(a,34)].
% 36.25/36.52  111 -implies_3 | is_a_theorem(implies(implies(A,B),implies(implies(B,C),implies(A,C)))) # label(implies_3) # label(axiom).  [clausify(6)].
% 36.25/36.52  112 is_a_theorem(implies(implies(A,B),implies(implies(B,C),implies(A,C)))).  [copy(111),unit_del(a,39)].
% 36.25/36.52  114 -equivalence_3 | is_a_theorem(implies(implies(A,B),implies(implies(B,A),equiv(A,B)))) # label(equivalence_3) # label(axiom).  [clausify(15)].
% 36.25/36.52  115 is_a_theorem(implies(implies(A,B),implies(implies(B,A),equiv(A,B)))).  [copy(114),unit_del(a,48)].
% 36.25/36.52  124 r5 | -is_a_theorem(implies(implies(c54,c55),implies(or(c53,c54),or(c53,c55)))) # label(r5) # label(axiom).  [clausify(26)].
% 36.25/36.52  125 -is_a_theorem(implies(implies(c54,c55),implies(implies(not(c53),c54),implies(not(c53),c55)))).  [copy(124),rewrite([106(7),106(11)]),unit_del(a,52)].
% 36.25/36.52  126 -or_3 | is_a_theorem(implies(implies(A,B),implies(implies(C,B),implies(or(A,C),B)))) # label(or_3) # label(axiom).  [clausify(12)].
% 36.25/36.52  127 is_a_theorem(implies(implies(A,B),implies(implies(C,B),implies(implies(not(A),C),B)))).  [copy(126),rewrite([106(4)]),unit_del(a,45)].
% 36.25/36.52  131 implies(not(not(A)),B) = implies(A,B).  [back_rewrite(96),rewrite([106(2)])].
% 36.25/36.52  136 is_a_theorem(implies(A,implies(not(A),B))).  [back_rewrite(63),rewrite([106(1)])].
% 36.25/36.52  137 not(implies(A,not(B))) = and(A,B).  [back_rewrite(108),rewrite([131(4)])].
% 36.25/36.52  141 -is_a_theorem(A) | is_a_theorem(implies(B,A)).  [resolve(83,b,54,a)].
% 36.25/36.52  142 -is_a_theorem(A) | is_a_theorem(implies(B,and(A,B))).  [resolve(85,a,83,b)].
% 36.25/36.52  145 not(and(A,implies(B,C))) = implies(A,and(B,not(C))).  [para(98(a,1),98(a,1,1,2))].
% 36.25/36.52  146 -is_a_theorem(implies(not(A),not(B))) | is_a_theorem(implies(B,A)).  [resolve(100,a,83,b)].
% 36.25/36.52  149 -is_a_theorem(implies(A,implies(A,B))) | is_a_theorem(implies(A,B)).  [resolve(103,a,83,b)].
% 36.25/36.52  150 -is_a_theorem(implies(A,B)) | is_a_theorem(implies(implies(B,C),implies(A,C))).  [resolve(112,a,83,b)].
% 36.25/36.52  151 -is_a_theorem(implies(A,B)) | is_a_theorem(implies(implies(B,A),equiv(A,B))).  [resolve(115,a,83,b)].
% 36.25/36.52  152 -is_a_theorem(implies(implies(c54,c55),implies(implies(c54,c55),implies(implies(not(c53),c54),implies(not(c53),c55))))).  [ur(83,b,103,a,c,125,a)].
% 36.25/36.52  169 -is_a_theorem(implies(A,B)) | is_a_theorem(implies(implies(C,B),implies(implies(not(A),C),B))).  [resolve(127,a,83,b)].
% 36.25/36.52  171 is_a_theorem(implies(implies(and(A,not(B)),C),implies(implies(D,C),implies(implies(implies(A,B),D),C)))).  [para(98(a,1),127(a,1,2,2,1,1))].
% 36.25/36.52  172 is_a_theorem(implies(A,implies(B,not(not(A))))).  [para(131(a,1),54(a,1))].
% 36.25/36.52  179 is_a_theorem(implies(implies(A,not(B)),implies(B,not(A)))).  [para(131(a,1),100(a,1,1))].
% 36.25/36.52  182 and(implies(A,not(not(B))),implies(B,A)) = equiv(A,not(not(B))).  [para(131(a,1),110(a,1,2))].
% 36.25/36.52  187 is_a_theorem(implies(implies(not(A),B),implies(implies(C,B),implies(implies(A,C),B)))).  [para(131(a,1),127(a,1,2,2,1))].
% 36.25/36.52  192 is_a_theorem(implies(not(A),implies(A,B))).  [para(131(a,1),136(a,1,2))].
% 36.25/36.52  199 and(not(not(A)),B) = and(A,B).  [para(131(a,1),137(a,1,1)),rewrite([137(3)]),flip(a)].
% 36.25/36.52  318 is_a_theorem(implies(A,and(implies(and(B,C),C),A))).  [resolve(142,a,60,a)].
% 36.25/36.52  319 is_a_theorem(implies(A,and(implies(and(B,C),B),A))).  [resolve(142,a,57,a)].
% 36.25/36.52  320 is_a_theorem(implies(A,and(implies(B,implies(C,B)),A))).  [resolve(142,a,54,a)].
% 36.25/36.52  401 implies(implies(A,B),and(B,not(A))) = not(equiv(A,B)).  [para(110(a,1),145(a,1,1)),flip(a)].
% 36.25/36.52  536 -is_a_theorem(implies(A,not(B))) | is_a_theorem(implies(B,not(A))).  [para(131(a,1),146(a,1))].
% 36.25/36.52  617 is_a_theorem(implies(and(A,B),not(not(A)))).  [para(199(a,1),57(a,1,1))].
% 36.25/36.52  1053 is_a_theorem(implies(A,not(not(A)))).  [resolve(149,a,172,a)].
% 36.25/36.52  1057 is_a_theorem(implies(A,and(A,A))).  [resolve(149,a,85,a)].
% 36.25/36.52  1058 is_a_theorem(implies(A,A)).  [resolve(149,a,54,a)].
% 36.25/36.52  1062 is_a_theorem(implies(A,and(implies(B,B),A))).  [resolve(1058,a,142,a)].
% 36.25/36.52  1063 is_a_theorem(implies(A,implies(B,B))).  [resolve(1058,a,141,a)].
% 36.25/36.52  1121 is_a_theorem(implies(implies(A,B),implies(and(A,C),B))).  [resolve(150,a,617,a),rewrite([131(3)])].
% 36.25/36.52  1127 is_a_theorem(implies(implies(implies(A,B),C),implies(not(A),C))).  [resolve(150,a,192,a)].
% 36.25/36.52  1140 is_a_theorem(implies(implies(A,B),implies(and(C,A),B))).  [resolve(150,a,60,a)].
% 36.25/36.52  1141 is_a_theorem(implies(implies(implies(A,B),C),implies(B,C))).  [resolve(150,a,54,a)].
% 36.25/36.52  1270 is_a_theorem(implies(A,and(implies(B,and(B,B)),A))).  [resolve(1057,a,142,a)].
% 36.25/36.52  1302 is_a_theorem(implies(A,and(A,not(not(A))))).  [para(131(a,1),1057(a,1)),rewrite([199(5)])].
% 36.25/36.52  1305 is_a_theorem(implies(implies(implies(A,A),B),implies(C,B))).  [resolve(1063,a,150,a)].
% 36.25/36.52  1306 is_a_theorem(implies(A,and(implies(B,implies(C,C)),A))).  [resolve(1063,a,142,a)].
% 36.25/36.52  1383 is_a_theorem(implies(implies(implies(A,A),B),equiv(B,implies(A,A)))).  [resolve(151,a,1063,a)].
% 36.25/36.52  1384 is_a_theorem(implies(implies(and(A,A),A),equiv(A,and(A,A)))).  [resolve(151,a,1057,a)].
% 36.25/36.52  2206 -is_a_theorem(A) | is_a_theorem(and(implies(B,B),A)).  [resolve(1062,a,83,b)].
% 36.25/36.52  2621 -is_a_theorem(A) | is_a_theorem(and(A,not(not(A)))).  [resolve(1302,a,83,b)].
% 36.25/36.52  4106 is_a_theorem(equiv(A,not(not(A)))).  [resolve(2621,a,1053,a),rewrite([137(7),98(6),182(5)])].
% 36.25/36.52  4139 not(not(A)) = A.  [resolve(4106,a,77,a)].
% 36.25/36.52  4266 not(and(A,B)) = implies(A,not(B)).  [para(4139(a,1),98(a,1,1,2))].
% 36.25/36.52  4267 not(implies(A,B)) = and(A,not(B)).  [para(98(a,1),4139(a,1,1))].
% 36.25/36.52  4268 is_a_theorem(implies(implies(not(A),B),implies(not(B),A))).  [para(4139(a,1),100(a,1,1,2))].
% 36.25/36.52  4269 -is_a_theorem(implies(not(A),B)) | is_a_theorem(implies(not(B),A)).  [para(4139(a,1),146(a,1,2))].
% 36.25/36.52  6815 -is_a_theorem(implies(A,B)) | is_a_theorem(implies(not(B),not(A))).  [para(4139(a,1),536(a,1,2))].
% 36.25/36.52  6826 -is_a_theorem(implies(A,B)) | is_a_theorem(implies(and(A,C),B)).  [resolve(1121,a,83,b)].
% 36.25/36.52  6848 is_a_theorem(implies(implies(A,B),implies(implies(not(B),A),B))).  [resolve(169,a,1058,a)].
% 36.25/36.52  6920 -is_a_theorem(implies(A,B)) | is_a_theorem(implies(and(C,A),B)).  [resolve(1140,a,83,b)].
% 36.25/36.52  6936 -is_a_theorem(implies(implies(A,B),C)) | is_a_theorem(implies(B,C)).  [resolve(1141,a,83,b)].
% 36.25/36.52  7072 is_a_theorem(implies(implies(implies(A,A),B),B)).  [resolve(1305,a,149,a)].
% 36.25/36.52  7083 is_a_theorem(and(implies(A,A),implies(implies(implies(B,B),C),C))).  [resolve(7072,a,2206,a)].
% 36.25/36.52  7090 -is_a_theorem(implies(implies(A,A),B)) | is_a_theorem(B).  [resolve(7072,a,83,b)].
% 36.25/36.52  7887 is_a_theorem(implies(implies(implies(A,implies(B,B)),C),C)).  [resolve(4269,a,1306,a),rewrite([4266(5),4139(4)])].
% 36.25/36.52  7888 is_a_theorem(implies(implies(implies(A,and(A,A)),B),B)).  [resolve(4269,a,1270,a),rewrite([4266(5),4139(4)])].
% 36.25/36.52  7890 is_a_theorem(implies(implies(implies(A,implies(B,A)),C),C)).  [resolve(4269,a,320,a),rewrite([4266(5),4139(4)])].
% 36.25/36.52  7891 is_a_theorem(implies(implies(implies(and(A,B),A),C),C)).  [resolve(4269,a,319,a),rewrite([4266(5),4139(4)])].
% 36.25/36.52  7892 is_a_theorem(implies(implies(implies(and(A,B),B),C),C)).  [resolve(4269,a,318,a),rewrite([4266(5),4139(4)])].
% 36.25/36.52  9060 is_a_theorem(implies(and(A,B),and(B,A))).  [resolve(6815,a,179,a),rewrite([4267(3),4139(2),4267(4),4139(3)])].
% 36.25/36.52  9106 is_a_theorem(implies(equiv(A,B),equiv(B,A))).  [para(110(a,1),9060(a,1,1)),rewrite([110(4)])].
% 36.25/36.52  9284 is_a_theorem(implies(and(A,B),implies(C,A))).  [resolve(6826,a,54,a)].
% 36.25/36.52  10543 is_a_theorem(implies(and(A,not(B)),implies(B,C))).  [resolve(6920,a,192,a)].
% 36.25/36.52  10559 is_a_theorem(implies(and(A,and(B,C)),C)).  [resolve(6920,a,60,a)].
% 36.25/36.52  10622 is_a_theorem(implies(A,implies(B,implies(C,A)))).  [resolve(10559,a,536,a),rewrite([4266(4),4266(3),4139(2)])].
% 36.25/36.52  12060 is_a_theorem(implies(A,implies(implies(A,B),implies(C,B)))).  [resolve(6936,a,112,a)].
% 36.25/36.52  12061 is_a_theorem(implies(A,implies(B,and(implies(C,A),B)))).  [resolve(6936,a,85,a)].
% 36.25/36.52  13429 -is_a_theorem(implies(implies(A,implies(B,B)),C)) | is_a_theorem(C).  [resolve(7887,a,83,b)].
% 36.25/36.52  13476 -is_a_theorem(implies(implies(A,and(A,A)),B)) | is_a_theorem(B).  [resolve(7888,a,83,b)].
% 36.25/36.52  13495 -is_a_theorem(implies(implies(A,implies(B,A)),C)) | is_a_theorem(C).  [resolve(7890,a,83,b)].
% 36.25/36.52  13514 -is_a_theorem(implies(implies(and(A,B),A),C)) | is_a_theorem(C).  [resolve(7891,a,83,b)].
% 36.25/36.52  13534 -is_a_theorem(implies(implies(and(A,B),B),C)) | is_a_theorem(C).  [resolve(7892,a,83,b)].
% 36.25/36.52  18030 is_a_theorem(implies(A,and(implies(B,A),A))).  [resolve(12061,a,149,a)].
% 36.25/36.52  18049 is_a_theorem(implies(implies(implies(A,not(B)),B),B)).  [resolve(18030,a,4269,a),rewrite([4266(5),4139(4)])].
% 36.25/36.52  18251 is_a_theorem(implies(implies(A,B),implies(implies(implies(B,C),A),B))).  [resolve(13514,a,171,a)].
% 36.25/36.52  29085 -is_a_theorem(implies(implies(A,B),C)) | is_a_theorem(implies(not(A),C)).  [resolve(1127,a,83,b)].
% 36.25/36.52  31861 is_a_theorem(implies(implies(not(A),and(B,A)),A)).  [resolve(6848,a,13534,a)].
% 36.25/36.52  31941 is_a_theorem(implies(A,and(A,implies(B,A)))).  [resolve(31861,a,536,a),rewrite([4139(2),4267(4),4266(3),4139(2)])].
% 36.25/36.52  43873 is_a_theorem(implies(not(A),implies(implies(not(B),A),B))).  [resolve(29085,a,6848,a)].
% 36.25/36.52  43887 is_a_theorem(implies(A,implies(implies(B,C),implies(implies(A,B),C)))).  [resolve(29085,a,187,a),rewrite([4139(2)])].
% 36.25/36.52  43889 is_a_theorem(implies(not(A),implies(B,and(implies(A,C),B)))).  [resolve(29085,a,85,a)].
% 36.25/36.52  43901 is_a_theorem(implies(A,implies(implies(not(B),not(A)),B))).  [para(4139(a,1),43873(a,1,1))].
% 36.25/36.52  44340 is_a_theorem(implies(implies(not(A),and(B,not(B))),A)).  [resolve(43901,a,7090,a),rewrite([4267(3)])].
% 36.25/36.52  46524 is_a_theorem(implies(A,and(A,implies(B,B)))).  [resolve(44340,a,536,a),rewrite([4139(2),4267(4),4266(3),4139(2)])].
% 36.25/36.52  78324 is_a_theorem(implies(not(A),and(implies(A,B),not(A)))).  [resolve(43889,a,149,a)].
% 36.25/36.52  78407 is_a_theorem(implies(implies(implies(A,B),A),A)).  [resolve(78324,a,6815,a),rewrite([4266(4),4139(3),4139(4)])].
% 36.25/36.52  104705 is_a_theorem(equiv(implies(A,implies(B,B)),implies(B,B))).  [resolve(1383,a,13495,a)].
% 36.25/36.52  104706 is_a_theorem(equiv(equiv(A,A),implies(A,A))).  [resolve(1383,a,13476,a),rewrite([110(3)])].
% 36.25/36.52  104707 is_a_theorem(equiv(implies(A,A),implies(B,B))).  [resolve(1383,a,13429,a)].
% 36.25/36.52  104716 is_a_theorem(implies(A,equiv(A,implies(B,B)))).  [resolve(1383,a,6936,a)].
% 36.25/36.52  104839 equiv(A,A) = implies(A,A).  [resolve(104706,a,77,a),flip(a)].
% 36.25/36.52  104927 is_a_theorem(implies(A,and(equiv(implies(B,B),implies(C,C)),A))).  [resolve(104707,a,142,a)].
% 36.25/36.52  104929 implies(A,A) = implies(B,B).  [resolve(104707,a,77,a)].
% 36.25/36.52  104933 implies(A,A) = c_0.  [new_symbol(104929)].
% 36.25/36.52  104938 is_a_theorem(implies(A,and(c_0,A))).  [back_rewrite(104927),rewrite([104933(1),104933(2),104839(3),104933(3)])].
% 36.25/36.52  105011 equiv(A,A) = c_0.  [back_rewrite(104839),rewrite([104933(2)])].
% 36.25/36.52  105013 is_a_theorem(implies(A,equiv(A,c_0))).  [back_rewrite(104716),rewrite([104933(1)])].
% 36.25/36.52  105014 is_a_theorem(c_0).  [back_rewrite(104707),rewrite([104933(1),104933(2),105011(3)])].
% 36.25/36.52  105015 is_a_theorem(equiv(implies(A,c_0),c_0)).  [back_rewrite(104705),rewrite([104933(1),104933(3)])].
% 36.25/36.52  105151 is_a_theorem(implies(A,and(A,c_0))).  [back_rewrite(46524),rewrite([104933(1)])].
% 36.25/36.52  106484 is_a_theorem(and(c_0,implies(implies(c_0,A),A))).  [back_rewrite(7083),rewrite([104933(1),104933(2)])].
% 36.25/36.52  107104 and(A,not(A)) = not(c_0).  [para(104933(a,1),4267(a,1,1)),flip(a)].
% 36.25/36.52  107452 is_a_theorem(implies(implies(and(c_0,A),A),equiv(A,and(c_0,A)))).  [resolve(104938,a,151,a)].
% 36.25/36.52  107745 is_a_theorem(equiv(implies(and(A,B),B),c_0)).  [resolve(105013,a,13534,a)].
% 36.25/36.52  107746 is_a_theorem(equiv(implies(and(A,B),A),c_0)).  [resolve(105013,a,13514,a)].
% 36.25/36.52  107747 is_a_theorem(equiv(implies(A,implies(B,A)),c_0)).  [resolve(105013,a,13495,a)].
% 36.25/36.52  107841 implies(A,c_0) = c_0.  [resolve(105015,a,77,a),flip(a)].
% 36.25/36.52  107902 and(implies(c_0,A),c_0) = equiv(c_0,A).  [para(107841(a,1),110(a,1,2))].
% 36.25/36.52  108520 is_a_theorem(implies(implies(and(A,c_0),A),equiv(A,and(A,c_0)))).  [resolve(105151,a,151,a)].
% 36.25/36.52  109410 and(implies(A,B),and(A,not(B))) = not(c_0).  [para(4267(a,1),107104(a,1,2))].
% 36.25/36.52  110053 is_a_theorem(equiv(A,and(A,A))).  [resolve(1384,a,13534,a)].
% 36.25/36.52  110093 and(A,A) = A.  [resolve(110053,a,77,a)].
% 36.25/36.52  110100 implies(A,not(A)) = not(A).  [para(110093(a,1),4266(a,1,1)),flip(a)].
% 36.25/36.52  110111 is_a_theorem(implies(implies(A,B),implies(implies(B,not(A)),not(A)))).  [para(110100(a,1),112(a,1,2,2))].
% 36.25/36.52  112188 implies(and(A,B),B) = c_0.  [resolve(107745,a,77,a),flip(a)].
% 36.25/36.52  112189 is_a_theorem(implies(c_0,equiv(A,and(c_0,A)))).  [back_rewrite(107452),rewrite([112188(3)])].
% 36.25/36.52  112191 is_a_theorem(implies(implies(A,and(B,C)),implies(c_0,implies(A,C)))).  [para(112188(a,1),112(a,1,2,1))].
% 36.25/36.52  112192 and(and(A,B),not(B)) = not(c_0).  [para(112188(a,1),4267(a,1,1)),flip(a)].
% 36.25/36.52  112214 implies(and(A,B),A) = c_0.  [resolve(107746,a,77,a),flip(a)].
% 36.25/36.52  112215 is_a_theorem(implies(c_0,equiv(A,and(A,c_0)))).  [back_rewrite(108520),rewrite([112214(3)])].
% 36.25/36.52  112237 is_a_theorem(implies(implies(A,and(B,C)),implies(c_0,implies(A,B)))).  [para(112214(a,1),112(a,1,2,1))].
% 36.25/36.52  112267 implies(A,implies(B,A)) = c_0.  [resolve(107747,a,77,a),flip(a)].
% 36.25/36.52  112269 and(c_0,implies(implies(A,B),B)) = equiv(B,implies(A,B)).  [para(112267(a,1),110(a,1,1))].
% 36.25/36.52  112272 and(A,and(B,not(A))) = not(c_0).  [para(112267(a,1),4267(a,1,1)),rewrite([4267(4)]),flip(a)].
% 36.25/36.52  112311 is_a_theorem(equiv(A,implies(c_0,A))).  [back_rewrite(106484),rewrite([112269(5)])].
% 36.25/36.52  112351 implies(c_0,A) = A.  [resolve(112311,a,77,a)].
% 36.25/36.52  112357 is_a_theorem(implies(implies(A,and(B,C)),implies(A,B))).  [back_rewrite(112237),rewrite([112351(5)])].
% 36.25/36.52  112358 is_a_theorem(equiv(A,and(A,c_0))).  [back_rewrite(112215),rewrite([112351(5)])].
% 36.25/36.52  112361 is_a_theorem(implies(implies(A,and(B,C)),implies(A,C))).  [back_rewrite(112191),rewrite([112351(5)])].
% 36.25/36.52  112362 is_a_theorem(equiv(A,and(c_0,A))).  [back_rewrite(112189),rewrite([112351(5)])].
% 36.25/36.52  112372 equiv(c_0,A) = and(A,c_0).  [back_rewrite(107902),rewrite([112351(2)]),flip(a)].
% 36.25/36.52  114361 and(A,c_0) = A.  [resolve(112358,a,77,a)].
% 36.25/36.52  114362 equiv(c_0,A) = A.  [back_rewrite(112372),rewrite([114361(4)])].
% 36.25/36.52  114811 -is_a_theorem(A) | c_0 = A.  [para(114362(a,1),77(a,1)),flip(b)].
% 36.25/36.52  115247 implies(implies(implies(A,B),A),A) = c_0.  [resolve(114811,a,78407,a),flip(a)].
% 36.25/36.52  115358 implies(A,and(A,implies(B,A))) = c_0.  [resolve(114811,a,31941,a),flip(a)].
% 36.25/36.52  115379 implies(implies(implies(A,not(B)),B),B) = c_0.  [resolve(114811,a,18049,a),flip(a)].
% 36.25/36.52  115429 implies(A,implies(implies(A,B),implies(C,B))) = c_0.  [resolve(114811,a,12060,a),flip(a)].
% 36.25/36.52  115456 implies(A,implies(B,implies(C,A))) = c_0.  [resolve(114811,a,10622,a),flip(a)].
% 36.25/36.52  115466 implies(and(A,not(B)),implies(B,C)) = c_0.  [resolve(114811,a,10543,a),flip(a)].
% 36.25/36.52  115494 implies(and(A,B),implies(C,A)) = c_0.  [resolve(114811,a,9284,a),flip(a)].
% 36.25/36.52  115512 implies(equiv(A,B),equiv(B,A)) = c_0.  [resolve(114811,a,9106,a),flip(a)].
% 36.25/36.52  115517 implies(and(A,B),and(B,A)) = c_0.  [resolve(114811,a,9060,a),flip(a)].
% 36.25/36.52  115536 implies(implies(not(A),B),implies(not(B),A)) = c_0.  [resolve(114811,a,4268,a),flip(a)].
% 36.25/36.52  115540 implies(implies(implies(A,B),C),implies(B,C)) = c_0.  [resolve(114811,a,1141,a),flip(a)].
% 36.25/36.52  115667 and(c_0,A) = A.  [resolve(112362,a,77,a)].
% 36.25/36.52  115706 equiv(A,implies(B,A)) = implies(implies(B,A),A).  [back_rewrite(112269),rewrite([115667(4)]),flip(a)].
% 36.25/36.52  117878 equiv(A,and(A,implies(B,A))) = c_0.  [para(115358(a,1),110(a,1,1)),rewrite([112214(4),110093(3)]),flip(a)].
% 36.25/36.52  118154 equiv(implies(A,B),and(B,C)) = implies(implies(A,B),and(B,C)).  [para(115494(a,1),110(a,1,2)),rewrite([114361(5)]),flip(a)].
% 36.25/36.52  118347 equiv(equiv(A,B),equiv(B,A)) = c_0.  [para(115512(a,1),110(a,1,1)),rewrite([115512(4),110093(3)]),flip(a)].
% 36.25/36.52  118355 equiv(and(A,B),and(B,A)) = c_0.  [para(115517(a,1),110(a,1,1)),rewrite([115517(4),110093(3)]),flip(a)].
% 36.25/36.52  119071 and(A,implies(B,A)) = A.  [para(117878(a,1),77(a,1)),unit_del(a,105014)].
% 36.25/36.52  119158 equiv(A,B) = equiv(B,A).  [para(118347(a,1),77(a,1)),unit_del(a,105014)].
% 36.25/36.52  119485 -is_a_theorem(equiv(A,B)) | A = B.  [para(119158(a,1),77(a,1))].
% 36.25/36.52  119752 and(A,B) = and(B,A).  [para(118355(a,1),77(a,1)),unit_del(a,105014)].
% 36.25/36.52  120271 and(not(A),and(B,A)) = not(c_0).  [back_rewrite(112192),rewrite([119752(3)])].
% 36.25/36.52  120421 implies(A,not(B)) = implies(B,not(A)).  [para(119752(a,1),4266(a,1,1)),rewrite([4266(2)])].
% 36.25/36.52  120526 is_a_theorem(implies(implies(A,B),implies(A,and(A,B)))).  [back_rewrite(110111),rewrite([120421(3),120421(5),4267(4),4139(3)])].
% 36.25/36.52  121016 and(not(c_0),implies(A,B)) = not(c_0).  [para(112272(a,1),120271(a,1,2)),rewrite([4266(3),4139(2),119752(4)])].
% 36.25/36.52  121156 and(not(c_0),not(equiv(A,B))) = not(c_0).  [para(401(a,1),121016(a,1,2))].
% 36.25/36.52  121258 -is_a_theorem(implies(implies(c54,c55),and(A,implies(implies(c54,c55),implies(implies(not(c53),c54),implies(not(c53),c55)))))).  [ur(83,b,112357,a,c,152,a),rewrite([119752(17)])].
% 36.25/36.52  121362 implies(implies(A,and(B,C)),implies(A,C)) = c_0.  [resolve(112361,a,114811,a),flip(a)].
% 36.25/36.52  122156 and(c_0,implies(A,B)) = implies(A,B).  [para(115466(a,1),119071(a,1,2)),rewrite([119752(3)])].
% 36.25/36.52  122998 is_a_theorem(equiv(implies(A,B),implies(A,and(A,B)))).  [resolve(120526,a,151,a),rewrite([121362(4),112351(6)])].
% 36.25/36.52  123462 not(equiv(not(c_0),equiv(A,B))) = equiv(A,B).  [para(121156(a,1),401(a,1,2)),rewrite([120421(4),112351(4),120421(5),4139(4),112351(3),119158(5)]),flip(a)].
% 36.25/36.52  124219 implies(A,and(A,B)) = implies(A,B).  [resolve(122998,a,119485,a),flip(a)].
% 36.25/36.52  124254 implies(not(A),and(B,not(A))) = implies(not(A),B).  [para(124219(a,1),106(a,2)),rewrite([119752(2),106(3)])].
% 36.25/36.52  124255 equiv(A,and(A,B)) = implies(A,B).  [para(124219(a,1),110(a,1,1)),rewrite([112214(3),119752(3),122156(3)]),flip(a)].
% 36.25/36.52  124370 -is_a_theorem(implies(A,B)) | and(A,B) = A.  [para(124255(a,1),77(a,1))].
% 36.25/36.52  124433 implies(implies(A,B),A) = A.  [para(115247(a,1),124370(a,1)),rewrite([119752(5),119071(5)]),flip(b),unit_del(a,105014)].
% 36.25/36.52  124442 implies(implies(A,not(B)),B) = B.  [para(115379(a,1),124370(a,1)),rewrite([119752(6),119071(6)]),flip(b),unit_del(a,105014)].
% 36.25/36.52  131215 implies(implies(A,B),and(A,not(B))) = and(A,not(B)).  [para(109410(a,1),124219(a,1,2)),rewrite([120421(4),4267(3),112351(4)]),flip(a)].
% 36.25/36.52  131216 equiv(not(c_0),implies(A,B)) = and(A,not(B)).  [para(109410(a,1),124255(a,1,2)),rewrite([119158(4),131215(8)])].
% 36.25/36.52  131681 and(A,implies(implies(A,B),implies(C,B))) = A.  [para(115429(a,1),124370(a,1)),unit_del(a,105014)].
% 36.25/36.52  131881 and(implies(not(A),B),implies(not(B),A)) = implies(not(A),B).  [para(115536(a,1),124370(a,1)),unit_del(a,105014)].
% 36.25/36.52  131900 and(implies(A,B),implies(implies(C,A),B)) = implies(implies(C,A),B).  [para(115540(a,1),124370(a,1)),rewrite([119752(6)]),unit_del(a,105014)].
% 36.25/36.52  132951 implies(implies(implies(A,B),C),A) = implies(C,A).  [resolve(18251,a,124370,a),rewrite([131900(5)])].
% 36.25/36.52  133093 implies(implies(A,B),B) = implies(not(B),A).  [para(115706(a,1),123462(a,1,1,2)),rewrite([131216(5),119752(3),4266(4),4267(3),124254(4),115706(4)]),flip(a)].
% 36.25/36.52  133136 equiv(A,implies(B,A)) = implies(not(A),B).  [back_rewrite(115706),rewrite([133093(4)])].
% 36.25/36.52  133139 implies(A,and(B,A)) = implies(A,B).  [para(4139(a,1),133093(a,2,1)),rewrite([120421(4),4267(3),4139(2)])].
% 36.25/36.52  133353 implies(implies(A,B),and(B,A)) = A.  [para(133139(a,1),133136(a,1,2)),rewrite([119158(3),118154(3),4266(5),124442(6)])].
% 36.25/36.52  133365 implies(not(A),B) = implies(not(B),A).  [para(115536(a,1),133353(a,1,1)),rewrite([131881(6),112351(4)])].
% 36.25/36.52  133385 implies(implies(A,B),B) = implies(not(A),B).  [back_rewrite(133093),rewrite([133365(4)])].
% 36.25/36.52  136829 implies(implies(A,B),implies(C,B)) = implies(and(C,not(B)),A).  [para(131681(a,1),133353(a,1,2)),rewrite([132951(4),133385(3),4267(2)]),flip(a)].
% 36.25/36.52  136999 is_a_theorem(implies(A,implies(and(implies(A,B),not(C)),B))).  [back_rewrite(43887),rewrite([136829(4)])].
% 36.25/36.52  137111 implies(implies(A,B),implies(A,C)) = implies(B,implies(A,C)).  [para(124433(a,1),132951(a,1,1,1))].
% 36.25/36.52  137160 -is_a_theorem(implies(implies(c54,c55),A)).  [back_rewrite(121258),rewrite([137111(15),137111(13),115456(11),114361(5)])].
% 36.25/36.52  137161 $F.  [resolve(137160,a,136999,a)].
% 36.25/36.52  
% 36.25/36.52  % SZS output end Refutation
% 36.25/36.52  ============================== end of proof ==========================
% 36.25/36.52  
% 36.25/36.52  ============================== STATISTICS ============================
% 36.25/36.52  
% 36.25/36.52  Given=5295. Generated=4296671. Kept=137089. proofs=1.
% 36.25/36.52  Usable=1220. Sos=8093. Demods=1920. Limbo=49, Disabled=127808. Hints=0.
% 36.25/36.52  Megabytes=76.90.
% 36.25/36.52  User_CPU=33.35, System_CPU=2.12, Wall_clock=36.
% 36.25/36.52  
% 36.25/36.52  ============================== end of statistics =====================
% 36.25/36.52  
% 36.25/36.52  ============================== end of search =========================
% 36.25/36.52  
% 36.25/36.52  THEOREM PROVED
% 36.25/36.52  % SZS status Theorem
% 36.25/36.52  
% 36.25/36.52  Exiting with 1 proof.
% 36.25/36.52  
% 36.25/36.52  Process 20181 exit (max_proofs) Sat Jul  2 19:08:21 2022
% 36.25/36.52  Prover9 interrupted
%------------------------------------------------------------------------------