TSTP Solution File: LCL528+1 by Prover9---1109a
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- Process Solution
%------------------------------------------------------------------------------
% File : Prover9---1109a
% Problem : LCL528+1 : TPTP v8.1.0. Released v3.3.0.
% Transfm : none
% Format : tptp:raw
% Command : tptp2X_and_run_prover9 %d %s
% Computer : n023.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 13:47:23 EDT 2022
% Result : Theorem 66.25s 66.61s
% Output : Refutation 66.25s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12 % Problem : LCL528+1 : TPTP v8.1.0. Released v3.3.0.
% 0.07/0.12 % Command : tptp2X_and_run_prover9 %d %s
% 0.12/0.32 % Computer : n023.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 03:58:13 EDT 2022
% 0.12/0.32 % CPUTime :
% 0.72/1.02 ============================== Prover9 ===============================
% 0.72/1.02 Prover9 (32) version 2009-11A, November 2009.
% 0.72/1.02 Process 16596 was started by sandbox on n023.cluster.edu,
% 0.72/1.02 Sun Jul 3 03:58:14 2022
% 0.72/1.02 The command was "/export/starexec/sandbox/solver/bin/prover9 -t 300 -f /tmp/Prover9_16443_n023.cluster.edu".
% 0.72/1.02 ============================== end of head ===========================
% 0.72/1.02
% 0.72/1.02 ============================== INPUT =================================
% 0.72/1.02
% 0.72/1.02 % Reading from file /tmp/Prover9_16443_n023.cluster.edu
% 0.72/1.02
% 0.72/1.02 set(prolog_style_variables).
% 0.72/1.02 set(auto2).
% 0.72/1.02 % set(auto2) -> set(auto).
% 0.72/1.02 % set(auto) -> set(auto_inference).
% 0.72/1.02 % set(auto) -> set(auto_setup).
% 0.72/1.02 % set(auto_setup) -> set(predicate_elim).
% 0.72/1.02 % set(auto_setup) -> assign(eq_defs, unfold).
% 0.72/1.02 % set(auto) -> set(auto_limits).
% 0.72/1.02 % set(auto_limits) -> assign(max_weight, "100.000").
% 0.72/1.02 % set(auto_limits) -> assign(sos_limit, 20000).
% 0.72/1.02 % set(auto) -> set(auto_denials).
% 0.72/1.02 % set(auto) -> set(auto_process).
% 0.72/1.02 % set(auto2) -> assign(new_constants, 1).
% 0.72/1.02 % set(auto2) -> assign(fold_denial_max, 3).
% 0.72/1.02 % set(auto2) -> assign(max_weight, "200.000").
% 0.72/1.02 % set(auto2) -> assign(max_hours, 1).
% 0.72/1.02 % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 0.72/1.02 % set(auto2) -> assign(max_seconds, 0).
% 0.72/1.02 % set(auto2) -> assign(max_minutes, 5).
% 0.72/1.02 % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 0.72/1.02 % set(auto2) -> set(sort_initial_sos).
% 0.72/1.02 % set(auto2) -> assign(sos_limit, -1).
% 0.72/1.02 % set(auto2) -> assign(lrs_ticks, 3000).
% 0.72/1.02 % set(auto2) -> assign(max_megs, 400).
% 0.72/1.02 % set(auto2) -> assign(stats, some).
% 0.72/1.02 % set(auto2) -> clear(echo_input).
% 0.72/1.02 % set(auto2) -> set(quiet).
% 0.72/1.02 % set(auto2) -> clear(print_initial_clauses).
% 0.72/1.02 % set(auto2) -> clear(print_given).
% 0.72/1.02 assign(lrs_ticks,-1).
% 0.72/1.02 assign(sos_limit,10000).
% 0.72/1.02 assign(order,kbo).
% 0.72/1.02 set(lex_order_vars).
% 0.72/1.02 clear(print_given).
% 0.72/1.02
% 0.72/1.02 % formulas(sos). % not echoed (88 formulas)
% 0.72/1.02
% 0.72/1.02 ============================== end of input ==========================
% 0.72/1.02
% 0.72/1.02 % From the command line: assign(max_seconds, 300).
% 0.72/1.02
% 0.72/1.02 ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 0.72/1.02
% 0.72/1.02 % Formulas that are not ordinary clauses:
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 4 implies_1 <-> (all X all Y is_a_theorem(implies(X,implies(Y,X)))) # label(implies_1) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 7 and_1 <-> (all X all Y is_a_theorem(implies(and(X,Y),X))) # label(and_1) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 8 and_2 <-> (all X all Y is_a_theorem(implies(and(X,Y),Y))) # label(and_2) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 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].
% 0.72/1.02 10 or_1 <-> (all X all Y is_a_theorem(implies(X,or(X,Y)))) # label(or_1) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 11 or_2 <-> (all X all Y is_a_theorem(implies(Y,or(X,Y)))) # label(or_2) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 16 kn1 <-> (all P is_a_theorem(implies(P,and(P,P)))) # label(kn1) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 17 kn2 <-> (all P all Q is_a_theorem(implies(and(P,Q),P))) # label(kn2) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 20 cn2 <-> (all P all Q is_a_theorem(implies(P,implies(not(P),Q)))) # label(cn2) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 21 cn3 <-> (all P is_a_theorem(implies(implies(not(P),P),P))) # label(cn3) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 22 r1 <-> (all P is_a_theorem(implies(or(P,P),P))) # label(r1) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 23 r2 <-> (all P all Q is_a_theorem(implies(Q,or(P,Q)))) # label(r2) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 24 r3 <-> (all P all Q is_a_theorem(implies(or(P,Q),or(Q,P)))) # label(r3) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 32 necessitation <-> (all X (is_a_theorem(X) -> is_a_theorem(necessarily(X)))) # label(necessitation) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 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].
% 0.72/1.02 37 axiom_M <-> (all X is_a_theorem(implies(necessarily(X),X))) # label(axiom_M) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 38 axiom_4 <-> (all X is_a_theorem(implies(necessarily(X),necessarily(necessarily(X))))) # label(axiom_4) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 39 axiom_B <-> (all X is_a_theorem(implies(X,necessarily(possibly(X))))) # label(axiom_B) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 40 axiom_5 <-> (all X is_a_theorem(implies(possibly(X),necessarily(possibly(X))))) # label(axiom_5) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.02 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].
% 0.72/1.05 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].
% 0.72/1.05 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].
% 0.72/1.05 44 axiom_s4 <-> (all X is_a_theorem(strict_implies(necessarily(X),necessarily(necessarily(X))))) # label(axiom_s4) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.05 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].
% 0.72/1.05 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].
% 0.72/1.05 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].
% 0.72/1.05 48 axiom_m4 <-> (all X is_a_theorem(strict_implies(X,and(X,X)))) # label(axiom_m4) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.05 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].
% 0.72/1.05 50 axiom_m6 <-> (all X is_a_theorem(strict_implies(X,possibly(X)))) # label(axiom_m6) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.05 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].
% 0.72/1.05 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].
% 0.72/1.05 53 axiom_m9 <-> (all X is_a_theorem(strict_implies(possibly(possibly(X)),possibly(X)))) # label(axiom_m9) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.05 54 axiom_m10 <-> (all X is_a_theorem(strict_implies(possibly(X),necessarily(possibly(X))))) # label(axiom_m10) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.05 55 op_possibly -> (all X possibly(X) = not(necessarily(not(X)))) # label(op_possibly) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.05 56 op_necessarily -> (all X necessarily(X) = not(possibly(not(X)))) # label(op_necessarily) # label(axiom) # label(non_clause). [assumption].
% 0.72/1.05 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].
% 0.72/1.05 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].
% 0.72/1.05
% 0.72/1.05 ============================== end of process non-clausal formulas ===
% 0.72/1.05
% 0.72/1.05 ============================== PROCESS INITIAL CLAUSES ===============
% 0.72/1.05
% 0.72/1.05 ============================== PREDICATE ELIMINATION =================
% 0.72/1.05
% 0.72/1.05 ============================== end predicate elimination =============
% 0.72/1.05
% 0.72/1.05 Auto_denials: (non-Horn, no changes).
% 0.72/1.05
% 0.72/1.05 Term ordering decisions:
% 0.72/1.05 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.
% 0.72/1.05
% 0.72/1.05 ============================== end of process initial clauses ========
% 0.72/1.05
% 0.72/1.05 ============================== CLAUSES FOR SEARCH ====================
% 66.25/66.61
% 66.25/66.61 ============================== end of clauses for search =============
% 66.25/66.61
% 66.25/66.61 ============================== SEARCH ================================
% 66.25/66.61
% 66.25/66.61 % Starting search at 0.05 seconds.
% 66.25/66.61
% 66.25/66.61 Low Water (keep): wt=22.000, iters=3404
% 66.25/66.61
% 66.25/66.61 Low Water (keep): wt=20.000, iters=3356
% 66.25/66.61
% 66.25/66.61 Low Water (keep): wt=19.000, iters=3396
% 66.25/66.61
% 66.25/66.61 Low Water (keep): wt=18.000, iters=3340
% 66.25/66.61
% 66.25/66.61 Low Water (keep): wt=16.000, iters=3351
% 66.25/66.61
% 66.25/66.61 Low Water (keep): wt=15.000, iters=3407
% 66.25/66.61
% 66.25/66.61 Low Water (keep): wt=14.000, iters=3468
% 66.25/66.61
% 66.25/66.61 Low Water (keep): wt=13.000, iters=3404
% 66.25/66.61
% 66.25/66.61 Low Water (keep): wt=12.000, iters=3336
% 66.25/66.61
% 66.25/66.61 Low Water (displace): id=15421, wt=34.000
% 66.25/66.61
% 66.25/66.61 Low Water (displace): id=14835, wt=32.000
% 66.25/66.61
% 66.25/66.61 Low Water (displace): id=15422, wt=29.000
% 66.25/66.61
% 66.25/66.61 Low Water (displace): id=15219, wt=28.000
% 66.25/66.61
% 66.25/66.61 Low Water (displace): id=20700, wt=10.000
% 66.25/66.61
% 66.25/66.61 Low Water (displace): id=20800, wt=9.000
% 66.25/66.61
% 66.25/66.61 Low Water (keep): wt=11.000, iters=3339
% 66.25/66.61
% 66.25/66.61 Low Water (displace): id=29069, wt=8.000
% 66.25/66.61
% 66.25/66.61 Low Water (keep): wt=10.000, iters=3333
% 66.25/66.61
% 66.25/66.61 ============================== PROOF =================================
% 66.25/66.61 % SZS status Theorem
% 66.25/66.61 % SZS output start Refutation
% 66.25/66.61
% 66.25/66.61 % Proof 1 at 62.45 (+ 3.15) seconds.
% 66.25/66.61 % Length of proof is 200.
% 66.25/66.61 % Level of proof is 34.
% 66.25/66.61 % Maximum clause weight is 18.000.
% 66.25/66.61 % Given clauses 20158.
% 66.25/66.61
% 66.25/66.61 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].
% 66.25/66.61 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].
% 66.25/66.61 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].
% 66.25/66.61 4 implies_1 <-> (all X all Y is_a_theorem(implies(X,implies(Y,X)))) # label(implies_1) # label(axiom) # label(non_clause). [assumption].
% 66.25/66.61 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].
% 66.25/66.61 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].
% 66.25/66.61 7 and_1 <-> (all X all Y is_a_theorem(implies(and(X,Y),X))) # label(and_1) # label(axiom) # label(non_clause). [assumption].
% 66.25/66.61 8 and_2 <-> (all X all Y is_a_theorem(implies(and(X,Y),Y))) # label(and_2) # label(axiom) # label(non_clause). [assumption].
% 66.25/66.61 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].
% 66.25/66.61 10 or_1 <-> (all X all Y is_a_theorem(implies(X,or(X,Y)))) # label(or_1) # label(axiom) # label(non_clause). [assumption].
% 66.25/66.61 11 or_2 <-> (all X all Y is_a_theorem(implies(Y,or(X,Y)))) # label(or_2) # label(axiom) # label(non_clause). [assumption].
% 66.25/66.61 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].
% 66.25/66.61 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].
% 66.25/66.61 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].
% 66.25/66.61 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].
% 66.25/66.61 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].
% 66.25/66.61 32 necessitation <-> (all X (is_a_theorem(X) -> is_a_theorem(necessarily(X)))) # label(necessitation) # label(axiom) # label(non_clause). [assumption].
% 66.25/66.61 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].
% 66.25/66.61 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].
% 66.25/66.61 59 -modus_ponens | -is_a_theorem(A) | -is_a_theorem(implies(A,B)) | is_a_theorem(B) # label(modus_ponens) # label(axiom). [clausify(1)].
% 66.25/66.61 63 -substitution_of_equivalents | -is_a_theorem(equiv(A,B)) | B = A # label(substitution_of_equivalents) # label(axiom). [clausify(2)].
% 66.25/66.61 66 -modus_tollens | is_a_theorem(implies(implies(not(A),not(B)),implies(B,A))) # label(modus_tollens) # label(axiom). [clausify(3)].
% 66.25/66.61 68 -implies_1 | is_a_theorem(implies(A,implies(B,A))) # label(implies_1) # label(axiom). [clausify(4)].
% 66.25/66.61 70 -implies_2 | is_a_theorem(implies(implies(A,implies(A,B)),implies(A,B))) # label(implies_2) # label(axiom). [clausify(5)].
% 66.25/66.61 72 -implies_3 | is_a_theorem(implies(implies(A,B),implies(implies(B,C),implies(A,C)))) # label(implies_3) # label(axiom). [clausify(6)].
% 66.25/66.61 74 -and_1 | is_a_theorem(implies(and(A,B),A)) # label(and_1) # label(axiom). [clausify(7)].
% 66.25/66.61 76 -and_2 | is_a_theorem(implies(and(A,B),B)) # label(and_2) # label(axiom). [clausify(8)].
% 66.25/66.61 78 -and_3 | is_a_theorem(implies(A,implies(B,and(A,B)))) # label(and_3) # label(axiom). [clausify(9)].
% 66.25/66.61 80 -or_1 | is_a_theorem(implies(A,or(A,B))) # label(or_1) # label(axiom). [clausify(10)].
% 66.25/66.61 82 -or_2 | is_a_theorem(implies(A,or(B,A))) # label(or_2) # label(axiom). [clausify(11)].
% 66.25/66.61 84 -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)].
% 66.25/66.61 90 -equivalence_3 | is_a_theorem(implies(implies(A,B),implies(implies(B,A),equiv(A,B)))) # label(equivalence_3) # label(axiom). [clausify(15)].
% 66.25/66.61 114 -op_or | or(A,B) = not(and(not(A),not(B))) # label(op_or) # label(axiom). [clausify(27)].
% 66.25/66.61 115 -op_or | not(and(not(A),not(B))) = or(A,B). [copy(114),flip(b)].
% 66.25/66.61 118 -op_implies_and | not(and(A,not(B))) = implies(A,B) # label(op_implies_and) # label(axiom). [clausify(29)].
% 66.25/66.61 120 -op_equiv | and(implies(A,B),implies(B,A)) = equiv(A,B) # label(op_equiv) # label(axiom). [clausify(31)].
% 66.25/66.61 121 op_or # label(hilbert_op_or) # label(axiom). [assumption].
% 66.25/66.61 122 op_implies_and # label(hilbert_op_implies_and) # label(axiom). [assumption].
% 66.25/66.61 123 op_equiv # label(hilbert_op_equiv) # label(axiom). [assumption].
% 66.25/66.61 124 modus_ponens # label(hilbert_modus_ponens) # label(axiom). [assumption].
% 66.25/66.61 125 modus_tollens # label(hilbert_modus_tollens) # label(axiom). [assumption].
% 66.25/66.61 126 implies_1 # label(hilbert_implies_1) # label(axiom). [assumption].
% 66.25/66.61 127 implies_2 # label(hilbert_implies_2) # label(axiom). [assumption].
% 66.25/66.61 128 implies_3 # label(hilbert_implies_3) # label(axiom). [assumption].
% 66.25/66.61 129 and_1 # label(hilbert_and_1) # label(axiom). [assumption].
% 66.25/66.61 130 and_2 # label(hilbert_and_2) # label(axiom). [assumption].
% 66.25/66.61 131 and_3 # label(hilbert_and_3) # label(axiom). [assumption].
% 66.25/66.61 132 or_1 # label(hilbert_or_1) # label(axiom). [assumption].
% 66.25/66.61 133 or_2 # label(hilbert_or_2) # label(axiom). [assumption].
% 66.25/66.61 134 or_3 # label(hilbert_or_3) # label(axiom). [assumption].
% 66.25/66.61 137 equivalence_3 # label(hilbert_equivalence_3) # label(axiom). [assumption].
% 66.25/66.61 138 substitution_of_equivalents # label(substitution_of_equivalents) # label(axiom). [assumption].
% 66.25/66.61 139 -necessitation | -is_a_theorem(A) | is_a_theorem(necessarily(A)) # label(necessitation) # label(axiom). [clausify(32)].
% 66.25/66.61 172 axiom_m1 | -is_a_theorem(strict_implies(and(c77,c78),and(c78,c77))) # label(axiom_m1) # label(axiom). [clausify(45)].
% 66.25/66.61 195 -op_strict_implies | strict_implies(A,B) = necessarily(implies(A,B)) # label(op_strict_implies) # label(axiom). [clausify(57)].
% 66.25/66.61 196 -op_strict_implies | necessarily(implies(A,B)) = strict_implies(A,B). [copy(195),flip(b)].
% 66.25/66.61 200 necessitation # label(km5_necessitation) # label(axiom). [assumption].
% 66.25/66.61 205 op_strict_implies # label(s1_0_op_strict_implies) # label(axiom). [assumption].
% 66.25/66.61 207 -axiom_m1 # label(s1_0_axiom_m1) # label(negated_conjecture). [assumption].
% 66.25/66.61 208 not(and(not(A),not(B))) = or(A,B). [back_unit_del(115),unit_del(a,121)].
% 66.25/66.61 209 not(and(A,not(B))) = implies(A,B). [back_unit_del(118),unit_del(a,122)].
% 66.25/66.61 210 and(implies(A,B),implies(B,A)) = equiv(A,B). [back_unit_del(120),unit_del(a,123)].
% 66.25/66.61 211 -is_a_theorem(A) | -is_a_theorem(implies(A,B)) | is_a_theorem(B). [back_unit_del(59),unit_del(a,124)].
% 66.25/66.61 212 is_a_theorem(implies(implies(not(A),not(B)),implies(B,A))). [back_unit_del(66),unit_del(a,125)].
% 66.25/66.61 213 is_a_theorem(implies(A,implies(B,A))). [back_unit_del(68),unit_del(a,126)].
% 66.25/66.61 214 is_a_theorem(implies(implies(A,implies(A,B)),implies(A,B))). [back_unit_del(70),unit_del(a,127)].
% 66.25/66.61 215 is_a_theorem(implies(implies(A,B),implies(implies(B,C),implies(A,C)))). [back_unit_del(72),unit_del(a,128)].
% 66.25/66.61 216 is_a_theorem(implies(and(A,B),A)). [back_unit_del(74),unit_del(a,129)].
% 66.25/66.61 217 is_a_theorem(implies(and(A,B),B)). [back_unit_del(76),unit_del(a,130)].
% 66.25/66.61 218 is_a_theorem(implies(A,implies(B,and(A,B)))). [back_unit_del(78),unit_del(a,131)].
% 66.25/66.61 219 is_a_theorem(implies(A,or(A,B))). [back_unit_del(80),unit_del(a,132)].
% 66.25/66.61 220 is_a_theorem(implies(A,or(B,A))). [back_unit_del(82),unit_del(a,133)].
% 66.25/66.61 221 is_a_theorem(implies(implies(A,B),implies(implies(C,B),implies(or(A,C),B)))). [back_unit_del(84),unit_del(a,134)].
% 66.25/66.61 224 is_a_theorem(implies(implies(A,B),implies(implies(B,A),equiv(A,B)))). [back_unit_del(90),unit_del(a,137)].
% 66.25/66.61 225 -is_a_theorem(equiv(A,B)) | B = A. [back_unit_del(63),unit_del(a,138)].
% 66.25/66.61 228 -is_a_theorem(A) | is_a_theorem(necessarily(A)). [back_unit_del(139),unit_del(a,200)].
% 66.25/66.61 232 necessarily(implies(A,B)) = strict_implies(A,B). [back_unit_del(196),unit_del(a,205)].
% 66.25/66.61 234 -is_a_theorem(strict_implies(and(c77,c78),and(c78,c77))). [back_unit_del(172),unit_del(a,207)].
% 66.25/66.61 235 implies(not(A),B) = or(A,B). [back_rewrite(208),rewrite([209(4)])].
% 66.25/66.61 242 is_a_theorem(implies(or(A,not(B)),implies(B,A))). [back_rewrite(212),rewrite([235(3)])].
% 66.25/66.61 254 not(and(A,implies(B,C))) = implies(A,and(B,not(C))). [para(209(a,1),209(a,1,1,2))].
% 66.25/66.61 255 -is_a_theorem(A) | is_a_theorem(implies(B,A)). [resolve(213,a,211,b)].
% 66.25/66.61 258 -is_a_theorem(implies(A,implies(A,B))) | is_a_theorem(implies(A,B)). [resolve(214,a,211,b)].
% 66.25/66.61 261 -is_a_theorem(implies(A,B)) | is_a_theorem(implies(implies(B,C),implies(A,C))). [resolve(215,a,211,b)].
% 66.25/66.61 279 -is_a_theorem(implies(A,B)) | is_a_theorem(implies(implies(C,B),implies(or(A,C),B))). [resolve(221,a,211,b)].
% 66.25/66.61 288 -is_a_theorem(implies(A,B)) | is_a_theorem(implies(implies(B,A),equiv(A,B))). [resolve(224,a,211,b)].
% 66.25/66.61 341 or(and(A,not(B)),C) = implies(implies(A,B),C). [para(209(a,1),235(a,1,1)),flip(a)].
% 66.25/66.61 342 and(or(A,B),implies(B,not(A))) = equiv(not(A),B). [para(235(a,1),210(a,1,1))].
% 66.25/66.61 370 -is_a_theorem(or(A,not(B))) | is_a_theorem(implies(B,A)). [resolve(242,a,211,b)].
% 66.25/66.61 375 is_a_theorem(implies(or(A,not(not(B))),or(B,A))). [para(235(a,1),242(a,1,2))].
% 66.25/66.61 855 is_a_theorem(implies(implies(A,B),implies(or(A,A),B))). [resolve(258,a,221,a)].
% 66.25/66.61 856 is_a_theorem(implies(A,and(A,A))). [resolve(258,a,218,a)].
% 66.25/66.61 858 is_a_theorem(implies(A,A)). [resolve(258,a,213,a)].
% 66.25/66.61 865 is_a_theorem(implies(A,implies(B,B))). [resolve(858,a,255,a)].
% 66.25/66.61 872 is_a_theorem(strict_implies(A,A)). [resolve(858,a,228,a),rewrite([232(2)])].
% 66.25/66.61 881 is_a_theorem(implies(A,strict_implies(B,B))). [resolve(872,a,255,a)].
% 66.25/66.61 1040 is_a_theorem(implies(implies(implies(A,B),C),implies(or(B,not(A)),C))). [resolve(261,a,242,a)].
% 66.25/66.61 1048 is_a_theorem(implies(implies(or(A,B),C),implies(B,C))). [resolve(261,a,220,a)].
% 66.25/66.61 1055 is_a_theorem(implies(implies(implies(A,B),C),implies(B,C))). [resolve(261,a,213,a)].
% 66.25/66.61 1385 is_a_theorem(implies(implies(implies(A,A),B),implies(C,B))). [resolve(865,a,261,a)].
% 66.25/66.61 1490 is_a_theorem(implies(implies(strict_implies(A,A),B),implies(C,B))). [resolve(881,a,261,a)].
% 66.25/66.61 2793 is_a_theorem(implies(implies(A,B),implies(or(and(C,B),A),B))). [resolve(279,a,217,a)].
% 66.25/66.61 3914 is_a_theorem(implies(implies(strict_implies(A,A),B),equiv(B,strict_implies(A,A)))). [resolve(288,a,881,a)].
% 66.25/66.61 3915 is_a_theorem(implies(implies(implies(A,A),B),equiv(B,implies(A,A)))). [resolve(288,a,865,a)].
% 66.25/66.61 3916 is_a_theorem(implies(implies(and(A,A),A),equiv(A,and(A,A)))). [resolve(288,a,856,a)].
% 66.25/66.61 3941 is_a_theorem(implies(implies(implies(A,B),or(B,not(A))),equiv(or(B,not(A)),implies(A,B)))). [resolve(288,a,242,a)].
% 66.25/66.61 3950 is_a_theorem(implies(implies(or(A,B),A),equiv(A,or(A,B)))). [resolve(288,a,219,a)].
% 66.25/66.61 3956 is_a_theorem(implies(implies(implies(A,B),B),equiv(B,implies(A,B)))). [resolve(288,a,213,a)].
% 66.25/66.61 15896 -is_a_theorem(implies(A,B)) | is_a_theorem(implies(or(A,A),B)). [resolve(855,a,211,b)].
% 66.25/66.61 15994 -is_a_theorem(implies(implies(A,B),C)) | is_a_theorem(implies(or(B,not(A)),C)). [resolve(1040,a,211,b)].
% 66.25/66.61 19013 -is_a_theorem(implies(or(A,B),C)) | is_a_theorem(implies(B,C)). [resolve(1048,a,211,b)].
% 66.25/66.61 19234 -is_a_theorem(implies(implies(A,B),C)) | is_a_theorem(implies(B,C)). [resolve(1055,a,211,b)].
% 66.25/66.61 19308 is_a_theorem(implies(implies(implies(A,A),B),B)). [resolve(1385,a,258,a)].
% 66.25/66.61 19328 is_a_theorem(implies(implies(strict_implies(A,A),B),B)). [resolve(1490,a,258,a)].
% 66.25/66.61 19515 -is_a_theorem(implies(implies(A,A),B)) | is_a_theorem(B). [resolve(19308,a,211,b)].
% 66.25/66.61 19521 -is_a_theorem(implies(strict_implies(A,A),B)) | is_a_theorem(B). [resolve(19328,a,211,b)].
% 66.25/66.61 21459 is_a_theorem(implies(or(and(A,B),B),B)). [resolve(2793,a,19515,a)].
% 66.25/66.61 21960 is_a_theorem(equiv(A,and(A,A))). [resolve(3916,a,211,b),unit_del(a,216)].
% 66.25/66.61 21991 and(A,A) = A. [resolve(21960,a,225,a)].
% 66.25/66.61 21996 or(A,A) = not(not(A)). [para(21991(a,1),209(a,1,1)),rewrite([235(4)]),flip(a)].
% 66.25/66.61 21997 equiv(A,A) = implies(A,A). [para(21991(a,1),210(a,1)),flip(a)].
% 66.25/66.61 21999 not(and(A,or(B,B))) = implies(A,not(B)). [para(21991(a,1),254(a,2,2)),rewrite([235(2)])].
% 66.25/66.61 22002 implies(or(A,A),B) = or(not(A),B). [para(21991(a,1),341(a,1,1)),rewrite([235(4)]),flip(a)].
% 66.25/66.61 22005 is_a_theorem(or(not(A),A)). [para(21991(a,1),21459(a,1,1,1)),rewrite([22002(2)])].
% 66.25/66.61 22068 -is_a_theorem(implies(A,B)) | is_a_theorem(or(not(A),B)). [back_rewrite(15896),rewrite([22002(4)])].
% 66.25/66.61 22082 is_a_theorem(implies(A,not(not(A)))). [resolve(22005,a,370,a)].
% 66.25/66.61 22117 -is_a_theorem(A) | is_a_theorem(not(not(A))). [resolve(22082,a,211,b)].
% 66.25/66.61 22850 is_a_theorem(not(not(implies(or(A,not(not(B))),or(B,A))))). [resolve(22117,a,375,a)].
% 66.25/66.61 38815 is_a_theorem(implies(or(A,not(strict_implies(B,B))),A)). [resolve(15994,a,19328,a)].
% 66.25/66.61 38826 is_a_theorem(or(not(or(A,not(strict_implies(B,B)))),A)). [resolve(38815,a,22068,a)].
% 66.25/66.61 38940 is_a_theorem(or(A,implies(A,B))). [resolve(19013,a,242,a),rewrite([235(3)])].
% 66.25/66.61 40796 is_a_theorem(implies(A,equiv(A,implies(B,A)))). [resolve(19234,a,3956,a)].
% 66.25/66.61 40797 is_a_theorem(implies(A,equiv(A,or(A,B)))). [resolve(19234,a,3950,a)].
% 66.25/66.61 40803 is_a_theorem(implies(A,equiv(A,implies(B,B)))). [resolve(19234,a,3915,a)].
% 66.25/66.61 40804 is_a_theorem(implies(A,equiv(A,strict_implies(B,B)))). [resolve(19234,a,3914,a)].
% 66.25/66.61 40814 -is_a_theorem(A) | is_a_theorem(equiv(A,implies(B,A))). [resolve(40796,a,211,b)].
% 66.25/66.61 40821 -is_a_theorem(A) | is_a_theorem(equiv(A,or(A,B))). [resolve(40797,a,211,b)].
% 66.25/66.61 40848 is_a_theorem(equiv(strict_implies(A,A),implies(B,B))). [resolve(40803,a,19521,a)].
% 66.25/66.61 40868 is_a_theorem(equiv(implies(A,A),strict_implies(B,B))). [resolve(40804,a,19515,a)].
% 66.25/66.61 40871 -is_a_theorem(A) | is_a_theorem(equiv(A,strict_implies(B,B))). [resolve(40804,a,211,b)].
% 66.25/66.61 40927 strict_implies(A,A) = implies(B,B). [resolve(40848,a,225,a),flip(a)].
% 66.25/66.61 40929 strict_implies(A,A) = c_0. [new_symbol(40927)].
% 66.25/66.61 40931 implies(A,A) = c_0. [back_rewrite(40927),rewrite([40929(1)]),flip(a)].
% 66.25/66.61 40936 -is_a_theorem(A) | is_a_theorem(equiv(A,c_0)). [back_rewrite(40871),rewrite([40929(2)])].
% 66.25/66.61 40939 is_a_theorem(c_0). [back_rewrite(40868),rewrite([40931(1),40929(2),21997(3),40931(3)])].
% 66.25/66.61 40981 is_a_theorem(or(not(or(A,not(c_0))),A)). [back_rewrite(38826),rewrite([40929(1)])].
% 66.25/66.61 41820 is_a_theorem(implies(implies(c_0,A),A)). [back_rewrite(19328),rewrite([40929(1)])].
% 66.25/66.61 42497 is_a_theorem(equiv(c_0,or(c_0,A))). [resolve(40939,a,40821,a)].
% 66.25/66.61 42498 is_a_theorem(equiv(c_0,implies(A,c_0))). [resolve(40939,a,40814,a)].
% 66.25/66.61 43178 is_a_theorem(equiv(or(A,implies(A,B)),c_0)). [resolve(40936,a,38940,a)].
% 66.25/66.61 43490 is_a_theorem(equiv(implies(A,not(not(A))),c_0)). [resolve(40936,a,22082,a)].
% 66.25/66.61 43495 is_a_theorem(equiv(or(not(A),A),c_0)). [resolve(40936,a,22005,a)].
% 66.25/66.61 43559 is_a_theorem(equiv(implies(and(A,B),A),c_0)). [resolve(40936,a,216,a)].
% 66.25/66.61 43560 is_a_theorem(equiv(implies(A,implies(B,A)),c_0)). [resolve(40936,a,213,a)].
% 66.25/66.61 43714 is_a_theorem(equiv(implies(implies(c_0,A),A),c_0)). [resolve(41820,a,40936,a)].
% 66.25/66.61 44673 or(c_0,A) = c_0. [resolve(42497,a,225,a)].
% 66.25/66.61 44694 implies(A,c_0) = c_0. [resolve(42498,a,225,a)].
% 66.25/66.61 44696 and(implies(c_0,A),c_0) = equiv(c_0,A). [para(44694(a,1),210(a,1,2))].
% 66.25/66.61 45804 or(not(A),A) = c_0. [resolve(43495,a,225,a),flip(a)].
% 66.25/66.61 46505 is_a_theorem(implies(A,not(or(not(A),not(c_0))))). [resolve(40981,a,370,a)].
% 66.25/66.61 46766 or(A,implies(A,B)) = c_0. [resolve(43178,a,225,a),flip(a)].
% 66.25/66.61 46767 or(not(A),or(A,B)) = c_0. [para(235(a,1),46766(a,1,2))].
% 66.25/66.61 46910 implies(A,not(not(A))) = c_0. [resolve(43490,a,225,a),flip(a)].
% 66.25/66.61 46911 equiv(A,not(not(A))) = c_0. [para(46910(a,1),210(a,1,1)),rewrite([235(4),45804(3),21991(3)]),flip(a)].
% 66.25/66.61 46917 not(not(A)) = A. [para(46911(a,1),225(a,1)),unit_del(a,40939)].
% 66.25/66.61 46946 is_a_theorem(implies(or(A,B),or(B,A))). [back_rewrite(22850),rewrite([46917(2),46917(5)])].
% 66.25/66.61 46947 or(A,A) = A. [back_rewrite(21996),rewrite([46917(3)])].
% 66.25/66.61 46986 or(not(A),B) = implies(A,B). [back_rewrite(22002),rewrite([46947(1)]),flip(a)].
% 66.25/66.61 46987 not(and(A,B)) = implies(A,not(B)). [back_rewrite(21999),rewrite([46947(1)])].
% 66.25/66.61 47122 implies(A,or(A,B)) = c_0. [back_rewrite(46767),rewrite([46986(3)])].
% 66.25/66.61 47123 is_a_theorem(implies(A,not(implies(A,not(c_0))))). [back_rewrite(46505),rewrite([46986(4)])].
% 66.25/66.61 47169 implies(A,not(implies(B,C))) = implies(A,and(B,not(C))). [back_rewrite(254),rewrite([46987(3)])].
% 66.25/66.61 47173 is_a_theorem(implies(A,and(A,c_0))). [back_rewrite(47123),rewrite([47169(5),46917(3)])].
% 66.25/66.61 53184 is_a_theorem(implies(implies(and(A,c_0),A),equiv(A,and(A,c_0)))). [resolve(47173,a,288,a)].
% 66.25/66.61 58570 implies(and(A,B),A) = c_0. [resolve(43559,a,225,a),flip(a)].
% 66.25/66.61 58573 is_a_theorem(implies(c_0,equiv(A,and(A,c_0)))). [back_rewrite(53184),rewrite([58570(3)])].
% 66.25/66.61 58590 implies(A,implies(B,A)) = c_0. [resolve(43560,a,225,a),flip(a)].
% 66.25/66.61 59214 implies(implies(c_0,A),A) = c_0. [resolve(43714,a,225,a),flip(a)].
% 66.25/66.61 59215 equiv(implies(c_0,A),A) = c_0. [para(59214(a,1),210(a,1,1)),rewrite([58590(4),21991(3)]),flip(a)].
% 66.25/66.61 59235 implies(c_0,A) = A. [para(59215(a,1),225(a,1)),flip(b),unit_del(a,40939)].
% 66.25/66.61 59242 is_a_theorem(equiv(A,and(A,c_0))). [back_rewrite(58573),rewrite([59235(5)])].
% 66.25/66.61 59260 equiv(c_0,A) = and(A,c_0). [back_rewrite(44696),rewrite([59235(2)]),flip(a)].
% 66.25/66.61 59465 is_a_theorem(equiv(or(A,not(c_0)),A)). [para(59235(a,1),3941(a,1,1,1)),rewrite([47122(4),59235(6),59235(6)])].
% 66.25/66.61 59650 and(A,c_0) = A. [resolve(59242,a,225,a)].
% 66.25/66.61 59660 equiv(c_0,A) = A. [back_rewrite(59260),rewrite([59650(4)])].
% 66.25/66.61 59693 -is_a_theorem(A) | c_0 = A. [para(59660(a,1),225(a,1)),flip(b)].
% 66.25/66.61 62734 or(A,not(c_0)) = A. [resolve(59465,a,225,a),flip(a)].
% 66.25/66.61 62750 implies(implies(A,B),not(c_0)) = and(A,not(B)). [para(62734(a,1),341(a,1)),flip(a)].
% 66.25/66.61 62751 equiv(not(A),not(c_0)) = A. [para(62734(a,1),342(a,1,1)),rewrite([235(4),44673(3),59650(2)]),flip(a)].
% 66.25/66.61 62764 equiv(A,not(c_0)) = not(A). [para(46917(a,1),62751(a,1,1))].
% 66.25/66.61 64252 implies(A,not(c_0)) = not(A). [para(62764(a,1),210(a,2)),rewrite([235(6),44673(5),59650(5)])].
% 66.25/66.61 64254 not(implies(A,B)) = and(A,not(B)). [back_rewrite(62750),rewrite([64252(4)])].
% 66.25/66.61 65018 implies(or(A,B),or(B,A)) = c_0. [resolve(46946,a,59693,a),flip(a)].
% 66.25/66.61 65021 is_a_theorem(equiv(or(A,B),or(B,A))). [resolve(46946,a,288,a),rewrite([65018(3),59235(5)])].
% 66.25/66.61 66139 or(A,B) = or(B,A). [resolve(65021,a,225,a)].
% 66.25/66.61 66363 or(A,not(B)) = implies(B,A). [back_rewrite(46986),rewrite([66139(2)])].
% 66.25/66.61 71679 and(not(A),not(B)) = not(or(A,B)). [para(235(a,1),64254(a,1,1)),flip(a)].
% 66.25/66.61 80614 and(not(A),B) = and(B,not(A)). [para(46917(a,1),71679(a,1,2)),rewrite([66363(4),64254(4)])].
% 66.25/66.61 80653 and(A,B) = and(B,A). [para(46917(a,1),80614(a,1,1)),rewrite([46917(3)])].
% 66.25/66.61 80986 $F. [back_rewrite(234),rewrite([80653(6),40929(7)]),unit_del(a,40939)].
% 66.25/66.61
% 66.25/66.61 % SZS output end Refutation
% 66.25/66.61 ============================== end of proof ==========================
% 66.25/66.61
% 66.25/66.61 ============================== STATISTICS ============================
% 66.25/66.61
% 66.25/66.61 Given=20158. Generated=6441379. Kept=80921. proofs=1.
% 66.25/66.61 Usable=4961. Sos=6644. Demods=1186. Limbo=333, Disabled=69129. Hints=0.
% 66.25/66.61 Megabytes=54.33.
% 66.25/66.61 User_CPU=62.45, System_CPU=3.15, Wall_clock=65.
% 66.25/66.61
% 66.25/66.61 ============================== end of statistics =====================
% 66.25/66.61
% 66.25/66.61 ============================== end of search =========================
% 66.25/66.61
% 66.25/66.61 THEOREM PROVED
% 66.25/66.61 % SZS status Theorem
% 66.25/66.61
% 66.25/66.61 Exiting with 1 proof.
% 66.25/66.61
% 66.25/66.61 Process 16596 exit (max_proofs) Sun Jul 3 03:59:19 2022
% 66.25/66.61 Prover9 interrupted
%------------------------------------------------------------------------------