TSTP Solution File: LCL301-3 by Twee---2.4.2

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Twee---2.4.2
% Problem  : LCL301-3 : TPTP v8.1.2. Released v2.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : parallel-twee %s --tstp --conditional-encoding if --smaller --drop-non-horn --give-up-on-saturation --explain-encoding --formal-proof

% Computer : n020.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  : 300s
% DateTime : Thu Aug 31 08:18:27 EDT 2023

% Result   : Unsatisfiable 0.19s 0.73s
% Output   : Proof 0.19s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : LCL301-3 : TPTP v8.1.2. Released v2.3.0.
% 0.00/0.13  % Command  : parallel-twee %s --tstp --conditional-encoding if --smaller --drop-non-horn --give-up-on-saturation --explain-encoding --formal-proof
% 0.13/0.34  % Computer : n020.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 300
% 0.13/0.34  % DateTime : Fri Aug 25 06:24:45 EDT 2023
% 0.13/0.34  % CPUTime  : 
% 0.19/0.73  Command-line arguments: --no-flatten-goal
% 0.19/0.73  
% 0.19/0.73  % SZS status Unsatisfiable
% 0.19/0.73  
% 0.19/0.76  % SZS output start Proof
% 0.19/0.76  Take the following subset of the input axioms:
% 0.19/0.76    fof(and_defn, axiom, ![P, Q]: and(P, Q)=not(or(not(P), not(Q)))).
% 0.19/0.76    fof(axiom_1_2, axiom, ![A]: axiom(implies(or(A, A), A))).
% 0.19/0.76    fof(axiom_1_3, axiom, ![B, A2]: axiom(implies(A2, or(B, A2)))).
% 0.19/0.76    fof(axiom_1_4, axiom, ![A2, B2]: axiom(implies(or(A2, B2), or(B2, A2)))).
% 0.19/0.76    fof(axiom_1_5, axiom, ![C, A2, B2]: axiom(implies(or(A2, or(B2, C)), or(B2, or(A2, C))))).
% 0.19/0.76    fof(equivalent_defn, axiom, ![P2, Q2]: equivalent(P2, Q2)=and(implies(P2, Q2), implies(Q2, P2))).
% 0.19/0.76    fof(implies_definition, axiom, ![X, Y]: implies(X, Y)=or(not(X), Y)).
% 0.19/0.76    fof(prove_this, negated_conjecture, ~theorem(equivalent(not(implies(not(p), not(q))), and(not(p), q)))).
% 0.19/0.76    fof(rule_1, axiom, ![X2]: (theorem(X2) | ~axiom(X2))).
% 0.19/0.76    fof(rule_2, axiom, ![X2, Y2]: (theorem(X2) | (~theorem(implies(Y2, X2)) | ~theorem(Y2)))).
% 0.19/0.76  
% 0.19/0.76  Now clausify the problem and encode Horn clauses using encoding 3 of
% 0.19/0.76  http://www.cse.chalmers.se/~nicsma/papers/horn.pdf.
% 0.19/0.76  We repeatedly replace C & s=t => u=v by the two clauses:
% 0.19/0.76    fresh(y, y, x1...xn) = u
% 0.19/0.76    C => fresh(s, t, x1...xn) = v
% 0.19/0.76  where fresh is a fresh function symbol and x1..xn are the free
% 0.19/0.76  variables of u and v.
% 0.19/0.76  A predicate p(X) is encoded as p(X)=true (this is sound, because the
% 0.19/0.77  input problem has no model of domain size 1).
% 0.19/0.77  
% 0.19/0.77  The encoding turns the above axioms into the following unit equations and goals:
% 0.19/0.77  
% 0.19/0.77  Axiom 1 (rule_2): fresh(X, X, Y) = true.
% 0.19/0.77  Axiom 2 (rule_1): fresh2(X, X, Y) = true.
% 0.19/0.77  Axiom 3 (implies_definition): implies(X, Y) = or(not(X), Y).
% 0.19/0.77  Axiom 4 (rule_2): fresh3(X, X, Y, Z) = theorem(Y).
% 0.19/0.77  Axiom 5 (rule_1): fresh2(axiom(X), true, X) = theorem(X).
% 0.19/0.77  Axiom 6 (axiom_1_3): axiom(implies(X, or(Y, X))) = true.
% 0.19/0.77  Axiom 7 (axiom_1_2): axiom(implies(or(X, X), X)) = true.
% 0.19/0.77  Axiom 8 (and_defn): and(X, Y) = not(or(not(X), not(Y))).
% 0.19/0.77  Axiom 9 (equivalent_defn): equivalent(X, Y) = and(implies(X, Y), implies(Y, X)).
% 0.19/0.77  Axiom 10 (rule_2): fresh3(theorem(implies(X, Y)), true, Y, X) = fresh(theorem(X), true, Y).
% 0.19/0.77  Axiom 11 (axiom_1_4): axiom(implies(or(X, Y), or(Y, X))) = true.
% 0.19/0.77  Axiom 12 (axiom_1_5): axiom(implies(or(X, or(Y, Z)), or(Y, or(X, Z)))) = true.
% 0.19/0.77  
% 0.19/0.77  Lemma 13: not(implies(X, not(Y))) = and(X, Y).
% 0.19/0.77  Proof:
% 0.19/0.77    not(implies(X, not(Y)))
% 0.19/0.77  = { by axiom 3 (implies_definition) }
% 0.19/0.77    not(or(not(X), not(Y)))
% 0.19/0.77  = { by axiom 8 (and_defn) R->L }
% 0.19/0.77    and(X, Y)
% 0.19/0.77  
% 0.19/0.77  Lemma 14: theorem(implies(X, or(Y, X))) = true.
% 0.19/0.77  Proof:
% 0.19/0.77    theorem(implies(X, or(Y, X)))
% 0.19/0.77  = { by axiom 5 (rule_1) R->L }
% 0.19/0.77    fresh2(axiom(implies(X, or(Y, X))), true, implies(X, or(Y, X)))
% 0.19/0.77  = { by axiom 6 (axiom_1_3) }
% 0.19/0.77    fresh2(true, true, implies(X, or(Y, X)))
% 0.19/0.77  = { by axiom 2 (rule_1) }
% 0.19/0.77    true
% 0.19/0.77  
% 0.19/0.77  Lemma 15: fresh(theorem(or(X, X)), true, X) = theorem(X).
% 0.19/0.77  Proof:
% 0.19/0.77    fresh(theorem(or(X, X)), true, X)
% 0.19/0.77  = { by axiom 10 (rule_2) R->L }
% 0.19/0.77    fresh3(theorem(implies(or(X, X), X)), true, X, or(X, X))
% 0.19/0.77  = { by axiom 5 (rule_1) R->L }
% 0.19/0.77    fresh3(fresh2(axiom(implies(or(X, X), X)), true, implies(or(X, X), X)), true, X, or(X, X))
% 0.19/0.77  = { by axiom 7 (axiom_1_2) }
% 0.19/0.77    fresh3(fresh2(true, true, implies(or(X, X), X)), true, X, or(X, X))
% 0.19/0.77  = { by axiom 2 (rule_1) }
% 0.19/0.77    fresh3(true, true, X, or(X, X))
% 0.19/0.77  = { by axiom 4 (rule_2) }
% 0.19/0.77    theorem(X)
% 0.19/0.77  
% 0.19/0.77  Lemma 16: theorem(implies(or(X, Y), or(Y, X))) = true.
% 0.19/0.77  Proof:
% 0.19/0.77    theorem(implies(or(X, Y), or(Y, X)))
% 0.19/0.77  = { by axiom 5 (rule_1) R->L }
% 0.19/0.77    fresh2(axiom(implies(or(X, Y), or(Y, X))), true, implies(or(X, Y), or(Y, X)))
% 0.19/0.77  = { by axiom 11 (axiom_1_4) }
% 0.19/0.77    fresh2(true, true, implies(or(X, Y), or(Y, X)))
% 0.19/0.77  = { by axiom 2 (rule_1) }
% 0.19/0.77    true
% 0.19/0.77  
% 0.19/0.77  Lemma 17: fresh(theorem(or(X, Y)), true, or(Y, X)) = theorem(or(Y, X)).
% 0.19/0.77  Proof:
% 0.19/0.77    fresh(theorem(or(X, Y)), true, or(Y, X))
% 0.19/0.77  = { by axiom 10 (rule_2) R->L }
% 0.19/0.77    fresh3(theorem(implies(or(X, Y), or(Y, X))), true, or(Y, X), or(X, Y))
% 0.19/0.77  = { by lemma 16 }
% 0.19/0.77    fresh3(true, true, or(Y, X), or(X, Y))
% 0.19/0.77  = { by axiom 4 (rule_2) }
% 0.19/0.77    theorem(or(Y, X))
% 0.19/0.77  
% 0.19/0.77  Lemma 18: fresh(theorem(or(X, or(Y, Z))), true, or(Y, or(X, Z))) = theorem(or(Y, or(X, Z))).
% 0.19/0.77  Proof:
% 0.19/0.77    fresh(theorem(or(X, or(Y, Z))), true, or(Y, or(X, Z)))
% 0.19/0.77  = { by axiom 10 (rule_2) R->L }
% 0.19/0.77    fresh3(theorem(implies(or(X, or(Y, Z)), or(Y, or(X, Z)))), true, or(Y, or(X, Z)), or(X, or(Y, Z)))
% 0.19/0.77  = { by axiom 5 (rule_1) R->L }
% 0.19/0.77    fresh3(fresh2(axiom(implies(or(X, or(Y, Z)), or(Y, or(X, Z)))), true, implies(or(X, or(Y, Z)), or(Y, or(X, Z)))), true, or(Y, or(X, Z)), or(X, or(Y, Z)))
% 0.19/0.77  = { by axiom 12 (axiom_1_5) }
% 0.19/0.77    fresh3(fresh2(true, true, implies(or(X, or(Y, Z)), or(Y, or(X, Z)))), true, or(Y, or(X, Z)), or(X, or(Y, Z)))
% 0.19/0.77  = { by axiom 2 (rule_1) }
% 0.19/0.77    fresh3(true, true, or(Y, or(X, Z)), or(X, or(Y, Z)))
% 0.19/0.77  = { by axiom 4 (rule_2) }
% 0.19/0.77    theorem(or(Y, or(X, Z)))
% 0.19/0.77  
% 0.19/0.77  Goal 1 (prove_this): theorem(equivalent(not(implies(not(p), not(q))), and(not(p), q))) = true.
% 0.19/0.77  Proof:
% 0.19/0.77    theorem(equivalent(not(implies(not(p), not(q))), and(not(p), q)))
% 0.19/0.77  = { by lemma 13 }
% 0.19/0.77    theorem(equivalent(and(not(p), q), and(not(p), q)))
% 0.19/0.77  = { by axiom 9 (equivalent_defn) }
% 0.19/0.77    theorem(and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.77  = { by axiom 4 (rule_2) R->L }
% 0.19/0.77    fresh3(true, true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), implies(and(not(p), q), and(not(p), q)))
% 0.19/0.77  = { by axiom 1 (rule_2) R->L }
% 0.19/0.77    fresh3(fresh(true, true, or(not(implies(and(not(p), q), and(not(p), q))), and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), implies(and(not(p), q), and(not(p), q)))
% 0.19/0.77  = { by axiom 2 (rule_1) R->L }
% 0.19/0.77    fresh3(fresh(fresh2(true, true, or(and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), not(implies(and(not(p), q), and(not(p), q))))), true, or(not(implies(and(not(p), q), and(not(p), q))), and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), implies(and(not(p), q), and(not(p), q)))
% 0.19/0.77  = { by axiom 7 (axiom_1_2) R->L }
% 0.19/0.77    fresh3(fresh(fresh2(axiom(implies(or(not(implies(and(not(p), q), and(not(p), q))), not(implies(and(not(p), q), and(not(p), q)))), not(implies(and(not(p), q), and(not(p), q))))), true, or(and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), not(implies(and(not(p), q), and(not(p), q))))), true, or(not(implies(and(not(p), q), and(not(p), q))), and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), implies(and(not(p), q), and(not(p), q)))
% 0.19/0.77  = { by axiom 3 (implies_definition) R->L }
% 0.19/0.77    fresh3(fresh(fresh2(axiom(implies(implies(implies(and(not(p), q), and(not(p), q)), not(implies(and(not(p), q), and(not(p), q)))), not(implies(and(not(p), q), and(not(p), q))))), true, or(and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), not(implies(and(not(p), q), and(not(p), q))))), true, or(not(implies(and(not(p), q), and(not(p), q))), and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), implies(and(not(p), q), and(not(p), q)))
% 0.19/0.78  = { by axiom 3 (implies_definition) }
% 0.19/0.78    fresh3(fresh(fresh2(axiom(or(not(implies(implies(and(not(p), q), and(not(p), q)), not(implies(and(not(p), q), and(not(p), q))))), not(implies(and(not(p), q), and(not(p), q))))), true, or(and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), not(implies(and(not(p), q), and(not(p), q))))), true, or(not(implies(and(not(p), q), and(not(p), q))), and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), implies(and(not(p), q), and(not(p), q)))
% 0.19/0.78  = { by lemma 13 }
% 0.19/0.78    fresh3(fresh(fresh2(axiom(or(and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), not(implies(and(not(p), q), and(not(p), q))))), true, or(and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), not(implies(and(not(p), q), and(not(p), q))))), true, or(not(implies(and(not(p), q), and(not(p), q))), and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), implies(and(not(p), q), and(not(p), q)))
% 0.19/0.78  = { by axiom 5 (rule_1) }
% 0.19/0.78    fresh3(fresh(theorem(or(and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), not(implies(and(not(p), q), and(not(p), q))))), true, or(not(implies(and(not(p), q), and(not(p), q))), and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), implies(and(not(p), q), and(not(p), q)))
% 0.19/0.78  = { by lemma 17 }
% 0.19/0.78    fresh3(theorem(or(not(implies(and(not(p), q), and(not(p), q))), and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), implies(and(not(p), q), and(not(p), q)))
% 0.19/0.78  = { by axiom 3 (implies_definition) R->L }
% 0.19/0.78    fresh3(theorem(implies(implies(and(not(p), q), and(not(p), q)), and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))), implies(and(not(p), q), and(not(p), q)))
% 0.19/0.78  = { by axiom 10 (rule_2) }
% 0.19/0.78    fresh(theorem(implies(and(not(p), q), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.78  = { by axiom 3 (implies_definition) }
% 0.19/0.78    fresh(theorem(or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.78  = { by lemma 17 R->L }
% 0.19/0.78    fresh(fresh(theorem(or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.78  = { by lemma 15 R->L }
% 0.19/0.78    fresh(fresh(fresh(theorem(or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.78  = { by lemma 18 R->L }
% 0.19/0.78    fresh(fresh(fresh(fresh(theorem(or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.78  = { by lemma 17 R->L }
% 0.19/0.78    fresh(fresh(fresh(fresh(fresh(theorem(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.78  = { by lemma 15 R->L }
% 0.19/0.78    fresh(fresh(fresh(fresh(fresh(fresh(theorem(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.78  = { by lemma 18 R->L }
% 0.19/0.78    fresh(fresh(fresh(fresh(fresh(fresh(fresh(theorem(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.78  = { by lemma 17 R->L }
% 0.19/0.78    fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(theorem(or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.79  = { by lemma 18 R->L }
% 0.19/0.79    fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(theorem(or(or(and(not(p), q), not(and(not(p), q))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))))), true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.79  = { by axiom 4 (rule_2) R->L }
% 0.19/0.79    fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh3(true, true, or(or(and(not(p), q), not(and(not(p), q))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q)))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q)))), true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.79  = { by lemma 14 R->L }
% 0.19/0.79    fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh3(theorem(implies(or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))), or(or(and(not(p), q), not(and(not(p), q))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q)))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q)))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q)))), true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.79  = { by axiom 10 (rule_2) }
% 0.19/0.80    fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(theorem(or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q)))), true, or(or(and(not(p), q), not(and(not(p), q))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))))), true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.80  = { by axiom 4 (rule_2) R->L }
% 0.19/0.80    fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh3(true, true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))), implies(and(not(p), q), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(and(not(p), q), not(and(not(p), q))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))))), true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.80  = { by lemma 16 R->L }
% 0.19/0.80    fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh3(theorem(implies(or(not(and(not(p), q)), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))))), true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))), implies(and(not(p), q), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(and(not(p), q), not(and(not(p), q))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))))), true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.80  = { by axiom 3 (implies_definition) R->L }
% 0.19/0.80    fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh3(theorem(implies(implies(and(not(p), q), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))))), true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))), implies(and(not(p), q), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(and(not(p), q), not(and(not(p), q))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))))), true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.80  = { by axiom 10 (rule_2) }
% 0.19/0.81    fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(theorem(implies(and(not(p), q), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q)))), true, or(or(and(not(p), q), not(and(not(p), q))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))))), true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.81  = { by lemma 14 }
% 0.19/0.81    fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(true, true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q)))), true, or(or(and(not(p), q), not(and(not(p), q))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))))), true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.81  = { by axiom 1 (rule_2) }
% 0.19/0.81    fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(true, true, or(or(and(not(p), q), not(and(not(p), q))), or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), not(and(not(p), q))))), true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.81  = { by axiom 1 (rule_2) }
% 0.19/0.81    fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(true, true, or(or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.81  = { by axiom 1 (rule_2) }
% 0.19/0.81    fresh(fresh(fresh(fresh(fresh(fresh(fresh(fresh(true, true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), and(not(p), q)))), true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.81  = { by axiom 1 (rule_2) }
% 0.19/0.81    fresh(fresh(fresh(fresh(fresh(fresh(fresh(true, true, or(or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)), or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q)))), true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.81  = { by axiom 1 (rule_2) }
% 0.19/0.81    fresh(fresh(fresh(fresh(fresh(fresh(true, true, or(or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))), and(not(p), q))), true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.81  = { by axiom 1 (rule_2) }
% 0.19/0.81    fresh(fresh(fresh(fresh(fresh(true, true, or(and(not(p), q), or(or(and(not(p), q), not(and(not(p), q))), not(and(not(p), q))))), true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.81  = { by axiom 1 (rule_2) }
% 0.19/0.81    fresh(fresh(fresh(fresh(true, true, or(or(and(not(p), q), not(and(not(p), q))), or(and(not(p), q), not(and(not(p), q))))), true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.81  = { by axiom 1 (rule_2) }
% 0.19/0.81    fresh(fresh(fresh(true, true, or(and(not(p), q), not(and(not(p), q)))), true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.81  = { by axiom 1 (rule_2) }
% 0.19/0.81    fresh(fresh(true, true, or(not(and(not(p), q)), and(not(p), q))), true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.81  = { by axiom 1 (rule_2) }
% 0.19/0.81    fresh(true, true, and(implies(and(not(p), q), and(not(p), q)), implies(and(not(p), q), and(not(p), q))))
% 0.19/0.81  = { by axiom 1 (rule_2) }
% 0.19/0.81    true
% 0.19/0.81  % SZS output end Proof
% 0.19/0.81  
% 0.19/0.81  RESULT: Unsatisfiable (the axioms are contradictory).
%------------------------------------------------------------------------------