TSTP Solution File: SET021-7 by CSE---1.6

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : CSE---1.6
% Problem  : SET021-7 : TPTP v8.1.2. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -jar /export/starexec/sandbox/solver/bin/mcs_scs.jar %s %d

% Computer : n026.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 14:27:58 EDT 2023

% Result   : Unsatisfiable 0.59s 0.85s
% Output   : CNFRefutation 0.66s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem    : SET021-7 : TPTP v8.1.2. Bugfixed v2.1.0.
% 0.00/0.13  % Command    : java -jar /export/starexec/sandbox/solver/bin/mcs_scs.jar %s %d
% 0.16/0.35  % Computer : n026.cluster.edu
% 0.16/0.35  % Model    : x86_64 x86_64
% 0.16/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.35  % Memory   : 8042.1875MB
% 0.16/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.16/0.35  % CPULimit   : 300
% 0.16/0.35  % WCLimit    : 300
% 0.16/0.35  % DateTime   : Sat Aug 26 16:20:33 EDT 2023
% 0.16/0.35  % CPUTime    : 
% 0.21/0.59  start to proof:theBenchmark
% 0.59/0.83  %-------------------------------------------
% 0.59/0.83  % File        :CSE---1.6
% 0.59/0.83  % Problem     :theBenchmark
% 0.59/0.83  % Transform   :cnf
% 0.59/0.83  % Format      :tptp:raw
% 0.59/0.83  % Command     :java -jar mcs_scs.jar %d %s
% 0.59/0.83  
% 0.59/0.83  % Result      :Theorem 0.150000s
% 0.59/0.83  % Output      :CNFRefutation 0.150000s
% 0.59/0.83  %-------------------------------------------
% 0.59/0.84  %--------------------------------------------------------------------------
% 0.59/0.84  % File     : SET021-7 : TPTP v8.1.2. Bugfixed v2.1.0.
% 0.59/0.84  % Domain   : Set Theory
% 0.59/0.84  % Problem  : 2nd is unique when x is an ordered pair of sets
% 0.59/0.84  % Version  : [Qua92] axioms : Augmented.
% 0.59/0.84  % English  :
% 0.59/0.84  
% 0.59/0.84  % Refs     : [Qua92] Quaife (1992), Automated Deduction in von Neumann-Bern
% 0.59/0.84  % Source   : [Quaife]
% 0.59/0.84  % Names    : OP7.2 [Qua92]
% 0.59/0.84  
% 0.59/0.84  % Status   : Unsatisfiable
% 0.59/0.84  % Rating   : 0.10 v8.1.0, 0.11 v7.4.0, 0.29 v7.3.0, 0.17 v7.0.0, 0.27 v6.3.0, 0.18 v6.2.0, 0.40 v6.1.0, 0.43 v6.0.0, 0.60 v5.5.0, 0.85 v5.3.0, 0.89 v5.2.0, 0.81 v5.1.0, 0.88 v5.0.0, 0.86 v4.1.0, 0.85 v4.0.1, 0.73 v4.0.0, 0.64 v3.7.0, 0.40 v3.5.0, 0.45 v3.4.0, 0.67 v3.3.0, 0.64 v3.2.0, 0.62 v3.1.0, 0.45 v2.7.0, 0.58 v2.6.0, 0.67 v2.5.0, 0.73 v2.4.0, 0.75 v2.2.1, 0.67 v2.2.0, 0.33 v2.1.0
% 0.59/0.84  % Syntax   : Number of clauses     :  159 (  46 unt;  32 nHn; 100 RR)
% 0.59/0.84  %            Number of literals    :  322 ( 101 equ; 135 neg)
% 0.59/0.84  %            Maximal clause size   :    5 (   2 avg)
% 0.59/0.84  %            Maximal term depth    :    6 (   1 avg)
% 0.59/0.84  %            Number of predicates  :   10 (   9 usr;   0 prp; 1-3 aty)
% 0.59/0.84  %            Number of functors    :   42 (  42 usr;  10 con; 0-3 aty)
% 0.59/0.84  %            Number of variables   :  299 (  53 sgn)
% 0.59/0.84  % SPC      : CNF_UNS_RFO_SEQ_NHN
% 0.59/0.84  
% 0.59/0.84  % Comments : Preceding lemmas are added.
% 0.59/0.84  % Bugfixes : v2.1.0 - Bugfix in SET004-0.ax.
% 0.59/0.84  %--------------------------------------------------------------------------
% 0.59/0.84  %----Include von Neuman-Bernays-Godel set theory axioms
% 0.59/0.84  include('Axioms/SET004-0.ax').
% 0.59/0.84  %--------------------------------------------------------------------------
% 0.59/0.84  %----Corollaries to Unordered pair axiom. Not in paper, but in email.
% 0.59/0.84  cnf(corollary_1_to_unordered_pair,axiom,
% 0.59/0.84      ( ~ member(ordered_pair(X,Y),cross_product(U,V))
% 0.59/0.84      | member(X,unordered_pair(X,Y)) ) ).
% 0.59/0.84  
% 0.59/0.84  cnf(corollary_2_to_unordered_pair,axiom,
% 0.59/0.84      ( ~ member(ordered_pair(X,Y),cross_product(U,V))
% 0.59/0.84      | member(Y,unordered_pair(X,Y)) ) ).
% 0.59/0.84  
% 0.59/0.84  %----Corollaries to Cartesian product axiom.
% 0.59/0.84  cnf(corollary_1_to_cartesian_product,axiom,
% 0.59/0.84      ( ~ member(ordered_pair(U,V),cross_product(X,Y))
% 0.59/0.84      | member(U,universal_class) ) ).
% 0.59/0.84  
% 0.59/0.84  cnf(corollary_2_to_cartesian_product,axiom,
% 0.59/0.84      ( ~ member(ordered_pair(U,V),cross_product(X,Y))
% 0.59/0.84      | member(V,universal_class) ) ).
% 0.59/0.84  
% 0.59/0.84  %----                        PARTIAL ORDER.
% 0.59/0.84  %----(PO1): reflexive.
% 0.59/0.84  cnf(subclass_is_reflexive,axiom,
% 0.59/0.84      subclass(X,X) ).
% 0.59/0.84  
% 0.59/0.84  %----(PO2): antisymmetry is part of A-3.
% 0.59/0.84  %----(x < y), (y < x) --> (x = y).
% 0.59/0.84  
% 0.59/0.84  %----(PO3): transitivity.
% 0.59/0.84  cnf(transitivity_of_subclass,axiom,
% 0.59/0.84      ( ~ subclass(X,Y)
% 0.59/0.84      | ~ subclass(Y,Z)
% 0.59/0.84      | subclass(X,Z) ) ).
% 0.59/0.84  
% 0.59/0.84  %----                          EQUALITY.
% 0.59/0.84  %----(EQ1): equality axiom.
% 0.59/0.84  %----a:x:(x = x).
% 0.59/0.84  %----This is always an axiom in the TPTP presentation.
% 0.59/0.84  
% 0.59/0.84  %----(EQ2): expanded equality definition.
% 0.59/0.84  cnf(equality1,axiom,
% 0.59/0.84      ( X = Y
% 0.59/0.84      | member(not_subclass_element(X,Y),X)
% 0.59/0.84      | member(not_subclass_element(Y,X),Y) ) ).
% 0.59/0.84  
% 0.59/0.84  cnf(equality2,axiom,
% 0.59/0.84      ( ~ member(not_subclass_element(X,Y),Y)
% 0.59/0.84      | X = Y
% 0.59/0.84      | member(not_subclass_element(Y,X),Y) ) ).
% 0.59/0.84  
% 0.59/0.84  cnf(equality3,axiom,
% 0.59/0.84      ( ~ member(not_subclass_element(Y,X),X)
% 0.59/0.84      | X = Y
% 0.59/0.84      | member(not_subclass_element(X,Y),X) ) ).
% 0.59/0.84  
% 0.59/0.84  cnf(equality4,axiom,
% 0.59/0.84      ( ~ member(not_subclass_element(X,Y),Y)
% 0.59/0.84      | ~ member(not_subclass_element(Y,X),X)
% 0.59/0.84      | X = Y ) ).
% 0.59/0.84  
% 0.59/0.84  %----                        SPECIAL CLASSES.
% 0.59/0.84  %----(SP1): lemma.
% 0.59/0.84  cnf(special_classes_lemma,axiom,
% 0.59/0.84      ~ member(Y,intersection(complement(X),X)) ).
% 0.59/0.84  
% 0.59/0.84  %----(SP2):  Existence of O (null class).
% 0.59/0.84  %----e:x:a:z:(-(z e x)).
% 0.59/0.84  cnf(existence_of_null_class,axiom,
% 0.59/0.84      ~ member(Z,null_class) ).
% 0.59/0.84  
% 0.59/0.84  %----(SP3): O is a subclass of every class.
% 0.59/0.84  cnf(null_class_is_subclass,axiom,
% 0.59/0.84      subclass(null_class,X) ).
% 0.59/0.84  
% 0.59/0.84  %----corollary.
% 0.59/0.84  cnf(corollary_of_null_class_is_subclass,axiom,
% 0.59/0.84      ( ~ subclass(X,null_class)
% 0.59/0.84      | X = null_class ) ).
% 0.59/0.84  
% 0.59/0.84  %----(SP4): uniqueness of null class.
% 0.59/0.84  cnf(null_class_is_unique,axiom,
% 0.59/0.84      ( Z = null_class
% 0.59/0.84      | member(not_subclass_element(Z,null_class),Z) ) ).
% 0.59/0.84  
% 0.59/0.84  %----(SP5): O is a set (follows from axiom of infinity).
% 0.59/0.84  cnf(null_class_is_a_set,axiom,
% 0.59/0.84      member(null_class,universal_class) ).
% 0.59/0.84  
% 0.59/0.84  %----                      UNORDERED PAIRS.
% 0.59/0.84  %----(UP1): unordered pair is commutative.
% 0.59/0.84  cnf(commutativity_of_unordered_pair,axiom,
% 0.59/0.84      unordered_pair(X,Y) = unordered_pair(Y,X) ).
% 0.59/0.84  
% 0.59/0.84  %----(UP2): if one argument is a proper class, pair contains only the
% 0.59/0.84  %----other. In a slightly different form to the paper
% 0.59/0.84  cnf(singleton_in_unordered_pair1,axiom,
% 0.59/0.84      subclass(singleton(X),unordered_pair(X,Y)) ).
% 0.59/0.84  
% 0.59/0.84  cnf(singleton_in_unordered_pair2,axiom,
% 0.59/0.84      subclass(singleton(Y),unordered_pair(X,Y)) ).
% 0.59/0.84  
% 0.59/0.84  cnf(unordered_pair_equals_singleton1,axiom,
% 0.59/0.84      ( member(Y,universal_class)
% 0.59/0.84      | unordered_pair(X,Y) = singleton(X) ) ).
% 0.59/0.84  
% 0.59/0.84  cnf(unordered_pair_equals_singleton2,axiom,
% 0.59/0.84      ( member(X,universal_class)
% 0.59/0.84      | unordered_pair(X,Y) = singleton(Y) ) ).
% 0.59/0.84  
% 0.59/0.84  %----(UP3): if both arguments are proper classes, pair is null.
% 0.59/0.84  cnf(null_unordered_pair,axiom,
% 0.59/0.84      ( unordered_pair(X,Y) = null_class
% 0.59/0.84      | member(X,universal_class)
% 0.59/0.84      | member(Y,universal_class) ) ).
% 0.59/0.84  
% 0.59/0.84  %----(UP4): left cancellation for unordered pairs.
% 0.59/0.84  cnf(left_cancellation,axiom,
% 0.59/0.84      ( unordered_pair(X,Y) != unordered_pair(X,Z)
% 0.59/0.84      | ~ member(ordered_pair(Y,Z),cross_product(universal_class,universal_class))
% 0.59/0.84      | Y = Z ) ).
% 0.59/0.84  
% 0.59/0.84  %----(UP5): right cancellation for unordered pairs.
% 0.59/0.84  cnf(right_cancellation,axiom,
% 0.59/0.84      ( unordered_pair(X,Z) != unordered_pair(Y,Z)
% 0.59/0.84      | ~ member(ordered_pair(X,Y),cross_product(universal_class,universal_class))
% 0.59/0.84      | X = Y ) ).
% 0.59/0.84  
% 0.59/0.84  %----(UP6): corollary to (A-4).
% 0.59/0.84  cnf(corollary_to_unordered_pair_axiom1,axiom,
% 0.59/0.84      ( ~ member(X,universal_class)
% 0.59/0.84      | unordered_pair(X,Y) != null_class ) ).
% 0.59/0.84  
% 0.59/0.84  cnf(corollary_to_unordered_pair_axiom2,axiom,
% 0.59/0.84      ( ~ member(Y,universal_class)
% 0.59/0.84      | unordered_pair(X,Y) != null_class ) ).
% 0.59/0.84  
% 0.59/0.84  %----corollary to instantiate variables.
% 0.59/0.84  %----Not in the paper
% 0.59/0.84  cnf(corollary_to_unordered_pair_axiom3,axiom,
% 0.59/0.84      ( ~ member(ordered_pair(X,Y),cross_product(U,V))
% 0.59/0.84      | unordered_pair(X,Y) != null_class ) ).
% 0.59/0.84  
% 0.59/0.84  %----(UP7): if both members of a pair belong to a set, the pair
% 0.59/0.84  %----is a subset.
% 0.59/0.84  cnf(unordered_pair_is_subset,axiom,
% 0.59/0.84      ( ~ member(X,Z)
% 0.59/0.84      | ~ member(Y,Z)
% 0.59/0.84      | subclass(unordered_pair(X,Y),Z) ) ).
% 0.59/0.84  
% 0.59/0.84  %----                       SINGLETONS.
% 0.59/0.84  %----(SS1):  every singleton is a set.
% 0.59/0.84  cnf(singletons_are_sets,axiom,
% 0.59/0.84      member(singleton(X),universal_class) ).
% 0.59/0.84  
% 0.59/0.84  %----corollary, not in the paper.
% 0.59/0.84  cnf(corollary_1_to_singletons_are_sets,axiom,
% 0.59/0.84      member(singleton(Y),unordered_pair(X,singleton(Y))) ).
% 0.59/0.84  
% 0.59/0.84  %----(SS2): a set belongs to its singleton.
% 0.59/0.84  %----(u = x), (u e universal_class) --> (u e {x}).
% 0.59/0.84  cnf(set_in_its_singleton,axiom,
% 0.59/0.84      ( ~ member(X,universal_class)
% 0.59/0.85      | member(X,singleton(X)) ) ).
% 0.59/0.85  
% 0.59/0.85  %----corollary
% 0.59/0.85  cnf(corollary_to_set_in_its_singleton,axiom,
% 0.59/0.85      ( ~ member(X,universal_class)
% 0.59/0.85      | singleton(X) != null_class ) ).
% 0.59/0.85  
% 0.59/0.85  %----Not in the paper
% 0.59/0.85  cnf(null_class_in_its_singleton,axiom,
% 0.59/0.85      member(null_class,singleton(null_class)) ).
% 0.59/0.85  
% 0.59/0.85  %----(SS3): only x can belong to {x}.
% 0.59/0.85  cnf(only_member_in_singleton,axiom,
% 0.59/0.85      ( ~ member(Y,singleton(X))
% 0.59/0.85      | Y = X ) ).
% 0.59/0.85  
% 0.59/0.85  %----(SS4): if x is not a set, {x} = O.
% 0.59/0.85  cnf(singleton_is_null_class,axiom,
% 0.59/0.85      ( member(X,universal_class)
% 0.59/0.85      | singleton(X) = null_class ) ).
% 0.59/0.85  
% 0.59/0.85  %----(SS5): a singleton set is determined by its element.
% 0.59/0.85  cnf(singleton_identified_by_element1,axiom,
% 0.59/0.85      ( singleton(X) != singleton(Y)
% 0.59/0.85      | ~ member(X,universal_class)
% 0.59/0.85      | X = Y ) ).
% 0.59/0.85  
% 0.59/0.85  cnf(singleton_identified_by_element2,axiom,
% 0.59/0.85      ( singleton(X) != singleton(Y)
% 0.59/0.85      | ~ member(Y,universal_class)
% 0.59/0.85      | X = Y ) ).
% 0.59/0.85  
% 0.59/0.85  %----(SS5.5).
% 0.59/0.85  %----Not in the paper
% 0.59/0.85  cnf(singleton_in_unordered_pair3,axiom,
% 0.59/0.85      ( unordered_pair(Y,Z) != singleton(X)
% 0.59/0.85      | ~ member(X,universal_class)
% 0.59/0.85      | X = Y
% 0.59/0.85      | X = Z ) ).
% 0.59/0.85  
% 0.59/0.85  %----(SS6): existence of memb.
% 0.59/0.85  %----a:x:e:u:(((u e universal_class) & x = {u}) | (-e:y:((y
% 0.59/0.85  %----e universal_class) & x = {y}) & u = x)).
% 0.59/0.85  cnf(member_exists1,axiom,
% 0.59/0.85      ( ~ member(Y,universal_class)
% 0.59/0.85      | member(member_of(singleton(Y)),universal_class) ) ).
% 0.59/0.85  
% 0.59/0.85  cnf(member_exists2,axiom,
% 0.59/0.85      ( ~ member(Y,universal_class)
% 0.59/0.85      | singleton(member_of(singleton(Y))) = singleton(Y) ) ).
% 0.59/0.85  
% 0.59/0.85  cnf(member_exists3,axiom,
% 0.59/0.85      ( member(member_of(X),universal_class)
% 0.59/0.85      | member_of(X) = X ) ).
% 0.59/0.85  
% 0.59/0.85  cnf(member_exists4,axiom,
% 0.59/0.85      ( singleton(member_of(X)) = X
% 0.59/0.85      | member_of(X) = X ) ).
% 0.59/0.85  
% 0.59/0.85  %----(SS7): uniqueness of memb of a singleton set.
% 0.59/0.85  %----a:x:a:u:(((u e universal_class) & x = {u}) ==> member_of(x) = u)
% 0.59/0.85  cnf(member_of_singleton_is_unique,axiom,
% 0.59/0.85      ( ~ member(U,universal_class)
% 0.59/0.85      | member_of(singleton(U)) = U ) ).
% 0.59/0.85  
% 0.59/0.85  %----(SS8): uniqueness of memb when x is not a singleton of a set.
% 0.59/0.85  %----a:x:a:u:((e:y:((y e universal_class) & x = {y})
% 0.59/0.85  %----& u = x) | member_of(x) = u)
% 0.59/0.85  cnf(member_of_non_singleton_unique1,axiom,
% 0.59/0.85      ( member(member_of1(X),universal_class)
% 0.59/0.85      | member_of(X) = X ) ).
% 0.59/0.85  
% 0.59/0.85  cnf(member_of_non_singleton_unique2,axiom,
% 0.59/0.85      ( singleton(member_of1(X)) = X
% 0.59/0.85      | member_of(X) = X ) ).
% 0.59/0.85  
% 0.59/0.85  %----(SS9): corollary to (SS1).
% 0.59/0.85  cnf(corollary_2_to_singletons_are_sets,axiom,
% 0.59/0.85      ( singleton(member_of(X)) != X
% 0.59/0.85      | member(X,universal_class) ) ).
% 0.59/0.85  
% 0.59/0.85  %----(SS10).
% 0.59/0.85  cnf(property_of_singletons1,axiom,
% 0.59/0.85      ( singleton(member_of(X)) != X
% 0.59/0.85      | ~ member(Y,X)
% 0.59/0.85      | member_of(X) = Y ) ).
% 0.59/0.85  
% 0.59/0.85  %----(SS11).
% 0.59/0.85  cnf(property_of_singletons2,axiom,
% 0.59/0.85      ( ~ member(X,Y)
% 0.59/0.85      | subclass(singleton(X),Y) ) ).
% 0.59/0.85  
% 0.59/0.85  %----(SS12): there are at most two subsets of a singleton.
% 0.59/0.85  cnf(two_subsets_of_singleton,axiom,
% 0.59/0.85      ( ~ subclass(X,singleton(Y))
% 0.59/0.85      | X = null_class
% 0.59/0.85      | singleton(Y) = X ) ).
% 0.59/0.85  
% 0.59/0.85  %----(SS13): a class contains 0, 1, or at least 2 members.
% 0.59/0.85  cnf(number_of_elements_in_class,axiom,
% 0.59/0.85      ( member(not_subclass_element(intersection(complement(singleton(not_subclass_element(X,null_class))),X),null_class),intersection(complement(singleton(not_subclass_element(X,null_class))),X))
% 0.59/0.85      | singleton(not_subclass_element(X,null_class)) = X
% 0.59/0.85      | X = null_class ) ).
% 0.59/0.85  
% 0.59/0.85  %----corollaries.
% 0.59/0.85  cnf(corollary_2_to_number_of_elements_in_class,axiom,
% 0.59/0.85      ( member(not_subclass_element(intersection(complement(singleton(not_subclass_element(X,null_class))),X),null_class),X)
% 0.59/0.85      | singleton(not_subclass_element(X,null_class)) = X
% 0.59/0.85      | X = null_class ) ).
% 0.59/0.85  
% 0.59/0.85  cnf(corollary_1_to_number_of_elements_in_class,axiom,
% 0.59/0.85      ( not_subclass_element(intersection(complement(singleton(not_subclass_element(X,null_class))),X),null_class) != not_subclass_element(X,null_class)
% 0.59/0.85      | singleton(not_subclass_element(X,null_class)) = X
% 0.59/0.85      | X = null_class ) ).
% 0.59/0.85  
% 0.59/0.85  %----(SS14): relation to ordered pair.
% 0.59/0.85  %----It looks like we could simplify Godel's axioms by taking singleton
% 0.59/0.85  %----as a primitive and using the next as a definition. Not in the paper
% 0.59/0.85  cnf(unordered_pairs_and_singletons,axiom,
% 0.59/0.85      unordered_pair(X,Y) = union(singleton(X),singleton(Y)) ).
% 0.59/0.85  
% 0.59/0.85  %----                       ORDERED PAIRS.
% 0.59/0.85  %----(OP1): an ordered pair is a set.
% 0.59/0.85  cnf(ordered_pair_is_set,axiom,
% 0.59/0.85      member(ordered_pair(X,Y),universal_class) ).
% 0.59/0.85  
% 0.59/0.85  %----(OP2): members of ordered pair.
% 0.59/0.85  cnf(singleton_member_of_ordered_pair,axiom,
% 0.59/0.85      member(singleton(X),ordered_pair(X,Y)) ).
% 0.59/0.85  
% 0.59/0.85  cnf(unordered_pair_member_of_ordered_pair,axiom,
% 0.59/0.85      member(unordered_pair(X,singleton(Y)),ordered_pair(X,Y)) ).
% 0.59/0.85  
% 0.59/0.85  %----(OP3): special cases.
% 0.59/0.85  cnf(property_1_of_ordered_pair,axiom,
% 0.59/0.85      ( unordered_pair(singleton(X),unordered_pair(X,null_class)) = ordered_pair(X,Y)
% 0.59/0.85      | member(Y,universal_class) ) ).
% 0.59/0.85  
% 0.59/0.85  cnf(property_2_of_ordered_pair,axiom,
% 0.59/0.85      ( ~ member(Y,universal_class)
% 0.59/0.85      | unordered_pair(null_class,singleton(singleton(Y))) = ordered_pair(X,Y)
% 0.59/0.85      | member(X,universal_class) ) ).
% 0.59/0.85  
% 0.59/0.85  cnf(property_3_of_ordered_pair,axiom,
% 0.59/0.85      ( unordered_pair(null_class,singleton(null_class)) = ordered_pair(X,Y)
% 0.59/0.85      | member(X,universal_class)
% 0.59/0.85      | member(Y,universal_class) ) ).
% 0.59/0.85  
% 0.59/0.85  %----(OP4)-(OP5): an ordered pair uniquely determines its components.
% 0.59/0.85  %----(OP4). This OP10 from the paper. OP4 is now omitted
% 0.59/0.85  cnf(ordered_pair_determines_components1,axiom,
% 0.59/0.85      ( ordered_pair(W,X) != ordered_pair(Y,Z)
% 0.59/0.85      | ~ member(W,universal_class)
% 0.59/0.85      | W = Y ) ).
% 0.59/0.85  
% 0.59/0.85  %----(OP5). This OP11 from the paper. OP5 is now omitted
% 0.59/0.85  cnf(ordered_pair_determines_components2,axiom,
% 0.59/0.85      ( ordered_pair(W,X) != ordered_pair(Y,Z)
% 0.59/0.85      | ~ member(X,universal_class)
% 0.59/0.85      | X = Z ) ).
% 0.59/0.85  
% 0.59/0.85  %----(OP6): existence of 1st and 2nd.
% 0.59/0.85  %----a:x:e:u:e:v:((([u,v] e cross_product(universal_class,
% 0.59/0.85  %----universal_class)) & x = [u,v]) | (-e:y:e:z:(([y,z] e cross_product(
% 0.59/0.85  %----universal_class,universal_class)) & x = [y,z]) & u = x & v = x)).
% 0.59/0.85  cnf(existence_of_1st_and_2nd_1,axiom,
% 0.59/0.85      ( ~ member(ordered_pair(Y,Z),cross_product(universal_class,universal_class))
% 0.59/0.85      | member(ordered_pair(first(ordered_pair(Y,Z)),second(ordered_pair(Y,Z))),cross_product(universal_class,universal_class)) ) ).
% 0.59/0.85  
% 0.59/0.85  %----next is subsumed by Axiom B5'-b ([y,z]
% 0.59/0.85  %----e cross_product(universal_class,universal_class)) -->
% 0.59/0.85  %----([first([y,z]),second([y,z])] = [y,z]).
% 0.59/0.85  
% 0.59/0.85  cnf(existence_of_1st_and_2nd_2,axiom,
% 0.59/0.85      ( member(ordered_pair(first(X),second(X)),cross_product(universal_class,universal_class))
% 0.59/0.85      | first(X) = X ) ).
% 0.59/0.85  
% 0.59/0.85  cnf(existence_of_1st_and_2nd_3,axiom,
% 0.59/0.85      ( member(ordered_pair(first(X),second(X)),cross_product(universal_class,universal_class))
% 0.59/0.85      | second(X) = X ) ).
% 0.59/0.85  
% 0.59/0.85  cnf(existence_of_1st_and_2nd_4,axiom,
% 0.59/0.85      ( ordered_pair(first(X),second(X)) = X
% 0.59/0.85      | first(X) = X ) ).
% 0.59/0.85  
% 0.59/0.85  cnf(existence_of_1st_and_2nd_5,axiom,
% 0.59/0.85      ( ordered_pair(first(X),second(X)) = X
% 0.59/0.85      | second(X) = X ) ).
% 0.59/0.85  
% 0.59/0.85  cnf(prove_unique_1st_and_2nd_in_pair_of_sets2_1,negated_conjecture,
% 0.59/0.85      member(ordered_pair(u,v),cross_product(universal_class,universal_class)) ).
% 0.59/0.85  
% 0.59/0.85  cnf(prove_unique_1st_and_2nd_in_pair_of_sets2_2,negated_conjecture,
% 0.59/0.85      second(ordered_pair(u,v)) != v ).
% 0.59/0.85  
% 0.59/0.85  %--------------------------------------------------------------------------
% 0.59/0.85  %-------------------------------------------
% 0.59/0.85  % Proof found
% 0.59/0.85  % SZS status Theorem for theBenchmark
% 0.59/0.85  % SZS output start Proof
% 0.59/0.85  %ClaNum:188(EqnAxiom:44)
% 0.59/0.85  %VarNum:1115(SingletonVarNum:266)
% 0.59/0.85  %MaxLitNum:5
% 0.59/0.85  %MaxfuncDepth:24
% 0.59/0.85  %SharedTerms:42
% 0.59/0.85  %goalClause: 66 75
% 0.59/0.85  %singleGoalClaCount:2
% 0.59/0.85  [45]P1(a1)
% 0.59/0.85  [46]P2(a2)
% 0.59/0.85  [47]P5(a4,a19)
% 0.59/0.85  [48]P5(a1,a19)
% 0.59/0.85  [53]P6(a5,f6(a19,a19))
% 0.66/0.85  [54]P6(a20,f6(a19,a19))
% 0.66/0.85  [55]P5(a4,f26(a4,a4))
% 0.66/0.85  [66]P5(f26(f26(a25,a25),f26(a25,f26(a27,a27))),f6(a19,a19))
% 0.66/0.85  [64]E(f10(f9(f11(f6(a23,a19))),a23),a13)
% 0.66/0.85  [75]~E(f24(f26(f26(a25,a25),f26(a25,f26(a27,a27)))),a27)
% 0.66/0.85  [71]E(f10(f6(a19,a19),f10(f6(a19,a19),f8(f7(f8(a5),f9(f11(f6(a5,a19))))))),a23)
% 0.66/0.85  [49]P6(x491,a19)
% 0.66/0.85  [50]P6(a4,x501)
% 0.66/0.85  [51]P6(x511,x511)
% 0.66/0.85  [73]~P5(x731,a4)
% 0.66/0.85  [62]P6(f21(x621),f6(f6(a19,a19),a19))
% 0.66/0.85  [63]P6(f11(x631),f6(f6(a19,a19),a19))
% 0.66/0.85  [72]E(f10(f9(x721),f8(f9(f10(f7(f9(f11(f6(a5,a19))),x721),a13)))),f3(x721))
% 0.66/0.85  [52]E(f26(x521,x522),f26(x522,x521))
% 0.66/0.85  [56]P5(f26(x561,x562),a19)
% 0.66/0.85  [58]P6(f7(x581,x582),f6(a19,a19))
% 0.66/0.85  [59]P6(f26(x591,x591),f26(x592,x591))
% 0.66/0.85  [60]P6(f26(x601,x601),f26(x601,x602))
% 0.66/0.85  [65]P5(f26(x651,x651),f26(x652,f26(x651,x651)))
% 0.66/0.85  [74]~P5(x741,f10(f8(x742),x742))
% 0.66/0.85  [68]P5(f26(x681,x681),f26(f26(x681,x681),f26(x681,f26(x682,x682))))
% 0.66/0.85  [70]P5(f26(x701,f26(x702,x702)),f26(f26(x701,x701),f26(x701,f26(x702,x702))))
% 0.66/0.85  [69]E(f8(f10(f8(f26(x691,x691)),f8(f26(x692,x692)))),f26(x691,x692))
% 0.66/0.85  [61]E(f10(f6(x611,x612),x613),f10(x613,f6(x611,x612)))
% 0.66/0.85  [76]~P7(x761)+P2(x761)
% 0.66/0.85  [77]~P8(x771)+P2(x771)
% 0.66/0.85  [80]~P1(x801)+P6(a1,x801)
% 0.66/0.85  [81]~P1(x811)+P5(a4,x811)
% 0.66/0.85  [82]~P6(x821,a4)+E(x821,a4)
% 0.66/0.85  [84]P5(f22(x841),x841)+E(x841,a4)
% 0.66/0.85  [85]E(f14(x851),x851)+P5(f14(x851),a19)
% 0.66/0.85  [86]E(f14(x861),x861)+P5(f15(x861),a19)
% 0.66/0.85  [87]P5(x871,a19)+E(f26(x871,x871),a4)
% 0.66/0.85  [90]E(x901,a4)+P5(f16(x901,a4),x901)
% 0.66/0.85  [94]~P2(x941)+P6(x941,f6(a19,a19))
% 0.66/0.85  [83]E(x831,a4)+E(f10(x831,f22(x831)),a4)
% 0.66/0.86  [88]E(f14(x881),x881)+E(f26(f14(x881),f14(x881)),x881)
% 0.66/0.86  [89]E(f14(x891),x891)+E(f26(f15(x891),f15(x891)),x891)
% 0.66/0.86  [99]~P5(x991,a19)+E(f14(f26(x991,x991)),x991)
% 0.66/0.86  [103]P5(x1031,a19)+~E(f26(f14(x1031),f14(x1031)),x1031)
% 0.66/0.86  [127]~P5(x1271,a19)+P5(f14(f26(x1271,x1271)),a19)
% 0.66/0.86  [109]~P8(x1091)+E(f6(f9(f9(x1091)),f9(f9(x1091))),f9(x1091))
% 0.66/0.86  [131]~P7(x1311)+P2(f9(f11(f6(x1311,a19))))
% 0.66/0.86  [135]~P5(x1351,a19)+E(f26(f14(f26(x1351,x1351)),f14(f26(x1351,x1351))),f26(x1351,x1351))
% 0.66/0.86  [138]~P5(x1381,a19)+P5(f9(f10(a5,f6(a19,x1381))),a19)
% 0.66/0.86  [141]E(f12(x1411),x1411)+E(f26(f26(f12(x1411),f12(x1411)),f26(f12(x1411),f26(f24(x1411),f24(x1411)))),x1411)
% 0.66/0.86  [142]E(f24(x1421),x1421)+E(f26(f26(f12(x1421),f12(x1421)),f26(f12(x1421),f26(f24(x1421),f24(x1421)))),x1421)
% 0.66/0.86  [143]~P9(x1431)+P6(f7(x1431,f9(f11(f6(x1431,a19)))),a13)
% 0.66/0.86  [144]~P2(x1441)+P6(f7(x1441,f9(f11(f6(x1441,a19)))),a13)
% 0.66/0.86  [145]~P8(x1451)+P6(f9(f9(f11(f6(x1451,a19)))),f9(f9(x1451)))
% 0.66/0.86  [153]P9(x1531)+~P6(f7(x1531,f9(f11(f6(x1531,a19)))),a13)
% 0.66/0.86  [156]E(f12(x1561),x1561)+P5(f26(f26(f12(x1561),f12(x1561)),f26(f12(x1561),f26(f24(x1561),f24(x1561)))),f6(a19,a19))
% 0.66/0.86  [157]E(f24(x1571),x1571)+P5(f26(f26(f12(x1571),f12(x1571)),f26(f12(x1571),f26(f24(x1571),f24(x1571)))),f6(a19,a19))
% 0.66/0.86  [173]~P1(x1731)+P6(f9(f9(f11(f6(f10(a20,f6(x1731,a19)),a19)))),x1731)
% 0.66/0.86  [178]~P5(x1781,a19)+P5(f8(f9(f9(f11(f6(f10(a5,f6(f8(x1781),a19)),a19))))),a19)
% 0.66/0.86  [78]~E(x782,x781)+P6(x781,x782)
% 0.66/0.86  [79]~E(x791,x792)+P6(x791,x792)
% 0.66/0.86  [92]P5(x922,a19)+E(f26(x921,x922),f26(x921,x921))
% 0.66/0.86  [93]P5(x931,a19)+E(f26(x931,x932),f26(x932,x932))
% 0.66/0.86  [95]~P5(x952,a19)+~E(f26(x951,x952),a4)
% 0.66/0.86  [96]~P5(x961,a19)+~E(f26(x961,x962),a4)
% 0.66/0.86  [100]P6(x1001,x1002)+P5(f16(x1001,x1002),x1001)
% 0.66/0.86  [101]~P5(x1011,x1012)+~P5(x1011,f8(x1012))
% 0.66/0.86  [106]~P5(x1061,a19)+P5(x1061,f26(x1062,x1061))
% 0.66/0.86  [107]~P5(x1071,a19)+P5(x1071,f26(x1071,x1072))
% 0.66/0.86  [110]~P5(x1101,x1102)+P6(f26(x1101,x1101),x1102)
% 0.66/0.86  [111]E(x1111,x1112)+~P5(x1111,f26(x1112,x1112))
% 0.66/0.86  [119]P6(x1191,x1192)+~P5(f16(x1191,x1192),x1192)
% 0.66/0.86  [136]~P5(x1362,f9(x1361))+~E(f10(x1361,f6(f26(x1362,x1362),a19)),a4)
% 0.66/0.86  [140]P5(x1402,a19)+E(f26(f26(x1401,x1401),f26(x1401,f26(x1402,x1402))),f26(f26(x1401,x1401),f26(x1401,a4)))
% 0.66/0.86  [152]P5(x1521,x1522)+~P5(f26(f26(x1521,x1521),f26(x1521,f26(x1522,x1522))),a5)
% 0.66/0.86  [168]~P5(f26(f26(x1681,x1681),f26(x1681,f26(x1682,x1682))),a20)+E(f8(f10(f8(x1681),f8(f26(x1681,x1681)))),x1682)
% 0.66/0.86  [183]~P5(f26(f26(x1831,x1831),f26(x1831,f26(x1832,x1832))),f6(a19,a19))+P5(f26(f26(f12(f26(f26(x1831,x1831),f26(x1831,f26(x1832,x1832)))),f12(f26(f26(x1831,x1831),f26(x1831,f26(x1832,x1832))))),f26(f12(f26(f26(x1831,x1831),f26(x1831,f26(x1832,x1832)))),f26(f24(f26(f26(x1831,x1831),f26(x1831,f26(x1832,x1832)))),f24(f26(f26(x1831,x1831),f26(x1831,f26(x1832,x1832))))))),f6(a19,a19))
% 0.66/0.86  [124]P2(x1241)+~P3(x1241,x1242,x1243)
% 0.66/0.86  [125]P8(x1251)+~P4(x1252,x1253,x1251)
% 0.66/0.86  [126]P8(x1261)+~P4(x1262,x1261,x1263)
% 0.66/0.86  [134]~P4(x1341,x1342,x1343)+P3(x1341,x1342,x1343)
% 0.66/0.86  [117]P5(x1171,x1172)+~P5(x1171,f10(x1173,x1172))
% 0.66/0.86  [118]P5(x1181,x1182)+~P5(x1181,f10(x1182,x1183))
% 0.66/0.86  [128]~P3(x1282,x1281,x1283)+E(f9(f9(x1281)),f9(x1282))
% 0.66/0.86  [146]~P5(x1461,f6(x1462,x1463))+E(f26(f26(f12(x1461),f12(x1461)),f26(f12(x1461),f26(f24(x1461),f24(x1461)))),x1461)
% 0.66/0.86  [149]~P3(x1491,x1493,x1492)+P6(f9(f9(f11(f6(x1491,a19)))),f9(f9(x1492)))
% 0.66/0.86  [154]P5(x1541,a19)+~P5(f26(f26(x1542,x1542),f26(x1542,f26(x1541,x1541))),f6(x1543,x1544))
% 0.66/0.86  [155]P5(x1551,a19)+~P5(f26(f26(x1551,x1551),f26(x1551,f26(x1552,x1552))),f6(x1553,x1554))
% 0.66/0.86  [158]P5(x1581,x1582)+~P5(f26(f26(x1583,x1583),f26(x1583,f26(x1581,x1581))),f6(x1584,x1582))
% 0.66/0.86  [159]P5(x1591,x1592)+~P5(f26(f26(x1591,x1591),f26(x1591,f26(x1593,x1593))),f6(x1592,x1594))
% 0.66/0.86  [160]~E(f26(x1601,x1602),a4)+~P5(f26(f26(x1601,x1601),f26(x1601,f26(x1602,x1602))),f6(x1603,x1604))
% 0.66/0.86  [164]P5(x1641,f26(x1642,x1641))+~P5(f26(f26(x1642,x1642),f26(x1642,f26(x1641,x1641))),f6(x1643,x1644))
% 0.66/0.86  [165]P5(x1651,f26(x1651,x1652))+~P5(f26(f26(x1651,x1651),f26(x1651,f26(x1652,x1652))),f6(x1653,x1654))
% 0.66/0.86  [179]~P5(f26(f26(f26(f26(x1793,x1793),f26(x1793,f26(x1791,x1791))),f26(f26(x1793,x1793),f26(x1793,f26(x1791,x1791)))),f26(f26(f26(x1793,x1793),f26(x1793,f26(x1791,x1791))),f26(x1792,x1792))),f21(x1794))+P5(f26(f26(f26(f26(x1791,x1791),f26(x1791,f26(x1792,x1792))),f26(f26(x1791,x1791),f26(x1791,f26(x1792,x1792)))),f26(f26(f26(x1791,x1791),f26(x1791,f26(x1792,x1792))),f26(x1793,x1793))),x1794)
% 0.66/0.86  [180]~P5(f26(f26(f26(f26(x1802,x1802),f26(x1802,f26(x1801,x1801))),f26(f26(x1802,x1802),f26(x1802,f26(x1801,x1801)))),f26(f26(f26(x1802,x1802),f26(x1802,f26(x1801,x1801))),f26(x1803,x1803))),f11(x1804))+P5(f26(f26(f26(f26(x1801,x1801),f26(x1801,f26(x1802,x1802))),f26(f26(x1801,x1801),f26(x1801,f26(x1802,x1802)))),f26(f26(f26(x1801,x1801),f26(x1801,f26(x1802,x1802))),f26(x1803,x1803))),x1804)
% 0.66/0.86  [185]~P5(f26(f26(x1854,x1854),f26(x1854,f26(x1851,x1851))),f7(x1852,x1853))+P5(x1851,f9(f9(f11(f6(f10(x1852,f6(f9(f9(f11(f6(f10(x1853,f6(f26(x1854,x1854),a19)),a19)))),a19)),a19)))))
% 0.66/0.86  [139]~P2(x1391)+P7(x1391)+~P2(f9(f11(f6(x1391,a19))))
% 0.66/0.86  [161]P2(x1611)+~P6(x1611,f6(a19,a19))+~P6(f7(x1611,f9(f11(f6(x1611,a19)))),a13)
% 0.66/0.86  [170]E(x1701,a4)+E(f26(f16(x1701,a4),f16(x1701,a4)),x1701)+~E(f16(f10(f8(f26(f16(x1701,a4),f16(x1701,a4))),x1701),a4),f16(x1701,a4))
% 0.66/0.86  [172]E(x1721,a4)+E(f26(f16(x1721,a4),f16(x1721,a4)),x1721)+P5(f16(f10(f8(f26(f16(x1721,a4),f16(x1721,a4))),x1721),a4),x1721)
% 0.66/0.86  [175]E(x1751,a4)+E(f26(f16(x1751,a4),f16(x1751,a4)),x1751)+P5(f16(f10(f8(f26(f16(x1751,a4),f16(x1751,a4))),x1751),a4),f10(f8(f26(f16(x1751,a4),f16(x1751,a4))),x1751))
% 0.66/0.86  [176]P1(x1761)+~P5(a4,x1761)+~P6(f9(f9(f11(f6(f10(a20,f6(x1761,a19)),a19)))),x1761)
% 0.66/0.86  [184]~P5(x1841,a19)+E(x1841,a4)+P5(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(a2,f6(f26(x1841,x1841),a19)),a19))))))),x1841)
% 0.66/0.86  [98]~P6(x982,x981)+~P6(x981,x982)+E(x981,x982)
% 0.66/0.86  [91]P5(x912,a19)+P5(x911,a19)+E(f26(x911,x912),a4)
% 0.66/0.86  [102]P5(x1021,x1022)+P5(x1021,f8(x1022))+~P5(x1021,a19)
% 0.66/0.86  [112]E(x1121,x1122)+~E(f26(x1121,x1121),f26(x1122,x1122))+~P5(x1122,a19)
% 0.66/0.86  [113]E(x1131,x1132)+~E(f26(x1131,x1131),f26(x1132,x1132))+~P5(x1131,a19)
% 0.66/0.86  [120]E(f26(x1202,x1202),x1201)+~P6(x1201,f26(x1202,x1202))+E(x1201,a4)
% 0.66/0.86  [121]E(x1211,x1212)+P5(f16(x1212,x1211),x1212)+P5(f16(x1211,x1212),x1211)
% 0.66/0.86  [130]E(x1301,x1302)+P5(f16(x1302,x1301),x1302)+~P5(f16(x1301,x1302),x1302)
% 0.66/0.86  [132]E(x1321,x1322)+~P5(f16(x1322,x1321),x1321)+~P5(f16(x1321,x1322),x1322)
% 0.66/0.86  [116]~P5(x1162,x1161)+E(f14(x1161),x1162)+~E(f26(f14(x1161),f14(x1161)),x1161)
% 0.66/0.86  [133]P5(x1332,f9(x1331))+~P5(x1332,a19)+E(f10(x1331,f6(f26(x1332,x1332),a19)),a4)
% 0.66/0.86  [137]P5(x1372,a19)+P5(x1371,a19)+E(f26(f26(x1371,x1371),f26(x1371,f26(x1372,x1372))),f26(a4,f26(a4,a4)))
% 0.66/0.86  [147]P5(x1472,a19)+~P5(x1471,a19)+E(f26(a4,f26(f26(x1471,x1471),f26(x1471,x1471))),f26(f26(x1472,x1472),f26(x1472,f26(x1471,x1471))))
% 0.66/0.86  [169]~P5(x1691,x1692)+~P5(f26(f26(x1691,x1691),f26(x1691,f26(x1692,x1692))),f6(a19,a19))+P5(f26(f26(x1691,x1691),f26(x1691,f26(x1692,x1692))),a5)
% 0.66/0.86  [171]~P5(f26(f26(x1711,x1711),f26(x1711,f26(x1712,x1712))),f6(a19,a19))+~E(f8(f10(f8(x1711),f8(f26(x1711,x1711)))),x1712)+P5(f26(f26(x1711,x1711),f26(x1711,f26(x1712,x1712))),a20)
% 0.66/0.86  [174]~P2(x1741)+~P5(x1742,a19)+P5(f9(f9(f11(f6(f10(x1741,f6(x1742,a19)),a19)))),a19)
% 0.66/0.86  [104]~P6(x1041,x1043)+P6(x1041,x1042)+~P6(x1043,x1042)
% 0.66/0.86  [105]~P5(x1051,x1053)+P5(x1051,x1052)+~P6(x1053,x1052)
% 0.66/0.86  [114]E(x1141,x1142)+E(x1141,x1143)+~P5(x1141,f26(x1143,x1142))
% 0.66/0.86  [122]~P5(x1221,x1223)+~P5(x1221,x1222)+P5(x1221,f10(x1222,x1223))
% 0.66/0.86  [123]~P5(x1232,x1233)+~P5(x1231,x1233)+P6(f26(x1231,x1232),x1233)
% 0.66/0.86  [162]E(x1621,x1622)+~E(f26(x1623,x1621),f26(x1623,x1622))+~P5(f26(f26(x1621,x1621),f26(x1621,f26(x1622,x1622))),f6(a19,a19))
% 0.66/0.86  [163]E(x1631,x1632)+~E(f26(x1631,x1633),f26(x1632,x1633))+~P5(f26(f26(x1631,x1631),f26(x1631,f26(x1632,x1632))),f6(a19,a19))
% 0.66/0.86  [148]~P5(x1482,x1484)+~P5(x1481,x1483)+P5(f26(f26(x1481,x1481),f26(x1481,f26(x1482,x1482))),f6(x1483,x1484))
% 0.66/0.86  [150]E(x1501,x1502)+~P5(x1501,a19)+~E(f26(f26(x1503,x1503),f26(x1503,f26(x1501,x1501))),f26(f26(x1504,x1504),f26(x1504,f26(x1502,x1502))))
% 0.66/0.86  [151]E(x1511,x1512)+~P5(x1511,a19)+~E(f26(f26(x1511,x1511),f26(x1511,f26(x1513,x1513))),f26(f26(x1512,x1512),f26(x1512,f26(x1514,x1514))))
% 0.66/0.86  [181]~P5(f26(f26(f26(f26(x1812,x1812),f26(x1812,f26(x1813,x1813))),f26(f26(x1812,x1812),f26(x1812,f26(x1813,x1813)))),f26(f26(f26(x1812,x1812),f26(x1812,f26(x1813,x1813))),f26(x1811,x1811))),x1814)+P5(f26(f26(f26(f26(x1811,x1811),f26(x1811,f26(x1812,x1812))),f26(f26(x1811,x1811),f26(x1811,f26(x1812,x1812)))),f26(f26(f26(x1811,x1811),f26(x1811,f26(x1812,x1812))),f26(x1813,x1813))),f21(x1814))+~P5(f26(f26(f26(f26(x1811,x1811),f26(x1811,f26(x1812,x1812))),f26(f26(x1811,x1811),f26(x1811,f26(x1812,x1812)))),f26(f26(f26(x1811,x1811),f26(x1811,f26(x1812,x1812))),f26(x1813,x1813))),f6(f6(a19,a19),a19))
% 0.66/0.86  [182]~P5(f26(f26(f26(f26(x1822,x1822),f26(x1822,f26(x1821,x1821))),f26(f26(x1822,x1822),f26(x1822,f26(x1821,x1821)))),f26(f26(f26(x1822,x1822),f26(x1822,f26(x1821,x1821))),f26(x1823,x1823))),x1824)+P5(f26(f26(f26(f26(x1821,x1821),f26(x1821,f26(x1822,x1822))),f26(f26(x1821,x1821),f26(x1821,f26(x1822,x1822)))),f26(f26(f26(x1821,x1821),f26(x1821,f26(x1822,x1822))),f26(x1823,x1823))),f11(x1824))+~P5(f26(f26(f26(f26(x1821,x1821),f26(x1821,f26(x1822,x1822))),f26(f26(x1821,x1821),f26(x1821,f26(x1822,x1822)))),f26(f26(f26(x1821,x1821),f26(x1821,f26(x1822,x1822))),f26(x1823,x1823))),f6(f6(a19,a19),a19))
% 0.66/0.86  [186]P5(f26(f26(x1861,x1861),f26(x1861,f26(x1862,x1862))),f7(x1863,x1864))+~P5(f26(f26(x1861,x1861),f26(x1861,f26(x1862,x1862))),f6(a19,a19))+~P5(x1862,f9(f9(f11(f6(f10(x1863,f6(f9(f9(f11(f6(f10(x1864,f6(f26(x1861,x1861),a19)),a19)))),a19)),a19)))))
% 0.66/0.86  [187]~P4(x1872,x1875,x1871)+~P5(f26(f26(x1873,x1873),f26(x1873,f26(x1874,x1874))),f9(x1875))+E(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1871,f6(f26(f26(f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1872,f6(f26(x1873,x1873),a19)),a19))))))),f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1872,f6(f26(x1873,x1873),a19)),a19)))))))),f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1872,f6(f26(x1873,x1873),a19)),a19))))))),f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1872,f6(f26(x1874,x1874),a19)),a19))))))),f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1872,f6(f26(x1874,x1874),a19)),a19)))))))))),f26(f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1872,f6(f26(x1873,x1873),a19)),a19))))))),f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1872,f6(f26(x1873,x1873),a19)),a19)))))))),f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1872,f6(f26(x1873,x1873),a19)),a19))))))),f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1872,f6(f26(x1874,x1874),a19)),a19))))))),f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1872,f6(f26(x1874,x1874),a19)),a19))))))))))),a19)),a19))))))),f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1872,f6(f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1875,f6(f26(f26(f26(x1873,x1873),f26(x1873,f26(x1874,x1874))),f26(f26(x1873,x1873),f26(x1873,f26(x1874,x1874)))),a19)),a19))))))),f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1875,f6(f26(f26(f26(x1873,x1873),f26(x1873,f26(x1874,x1874))),f26(f26(x1873,x1873),f26(x1873,f26(x1874,x1874)))),a19)),a19)))))))),a19)),a19))))))))
% 0.66/0.86  [167]~P2(x1671)+P8(x1671)+~E(f6(f9(f9(x1671)),f9(f9(x1671))),f9(x1671))+~P6(f9(f9(f11(f6(x1671,a19)))),f9(f9(x1671)))
% 0.66/0.86  [115]E(x1151,x1152)+E(x1153,x1152)+~E(f26(x1153,x1151),f26(x1152,x1152))+~P5(x1152,a19)
% 0.66/0.86  [166]~P2(x1661)+P3(x1661,x1662,x1663)+~E(f9(f9(x1662)),f9(x1661))+~P6(f9(f9(f11(f6(x1661,a19)))),f9(f9(x1663)))
% 0.66/0.86  [177]~P8(x1773)+~P8(x1772)+~P3(x1771,x1772,x1773)+P4(x1771,x1772,x1773)+P5(f26(f26(f17(x1771,x1772,x1773),f17(x1771,x1772,x1773)),f26(f17(x1771,x1772,x1773),f26(f18(x1771,x1772,x1773),f18(x1771,x1772,x1773)))),f9(x1772))
% 0.66/0.86  [188]~P8(x1883)+~P8(x1882)+~P3(x1881,x1882,x1883)+P4(x1881,x1882,x1883)+~E(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1883,f6(f26(f26(f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1881,f6(f26(f17(x1881,x1882,x1883),f17(x1881,x1882,x1883)),a19)),a19))))))),f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1881,f6(f26(f17(x1881,x1882,x1883),f17(x1881,x1882,x1883)),a19)),a19)))))))),f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1881,f6(f26(f17(x1881,x1882,x1883),f17(x1881,x1882,x1883)),a19)),a19))))))),f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1881,f6(f26(f18(x1881,x1882,x1883),f18(x1881,x1882,x1883)),a19)),a19))))))),f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1881,f6(f26(f18(x1881,x1882,x1883),f18(x1881,x1882,x1883)),a19)),a19)))))))))),f26(f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1881,f6(f26(f17(x1881,x1882,x1883),f17(x1881,x1882,x1883)),a19)),a19))))))),f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1881,f6(f26(f17(x1881,x1882,x1883),f17(x1881,x1882,x1883)),a19)),a19)))))))),f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1881,f6(f26(f17(x1881,x1882,x1883),f17(x1881,x1882,x1883)),a19)),a19))))))),f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1881,f6(f26(f18(x1881,x1882,x1883),f18(x1881,x1882,x1883)),a19)),a19))))))),f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1881,f6(f26(f18(x1881,x1882,x1883),f18(x1881,x1882,x1883)),a19)),a19))))))))))),a19)),a19))))))),f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1881,f6(f26(f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1882,f6(f26(f26(f26(f17(x1881,x1882,x1883),f17(x1881,x1882,x1883)),f26(f17(x1881,x1882,x1883),f26(f18(x1881,x1882,x1883),f18(x1881,x1882,x1883)))),f26(f26(f17(x1881,x1882,x1883),f17(x1881,x1882,x1883)),f26(f17(x1881,x1882,x1883),f26(f18(x1881,x1882,x1883),f18(x1881,x1882,x1883))))),a19)),a19))))))),f9(f10(a5,f6(a19,f9(f9(f11(f6(f10(x1882,f6(f26(f26(f26(f17(x1881,x1882,x1883),f17(x1881,x1882,x1883)),f26(f17(x1881,x1882,x1883),f26(f18(x1881,x1882,x1883),f18(x1881,x1882,x1883)))),f26(f26(f17(x1881,x1882,x1883),f17(x1881,x1882,x1883)),f26(f17(x1881,x1882,x1883),f26(f18(x1881,x1882,x1883),f18(x1881,x1882,x1883))))),a19)),a19)))))))),a19)),a19))))))))
% 0.66/0.86  %EqnAxiom
% 0.66/0.86  [1]E(x11,x11)
% 0.66/0.86  [2]E(x22,x21)+~E(x21,x22)
% 0.66/0.86  [3]E(x31,x33)+~E(x31,x32)+~E(x32,x33)
% 0.66/0.86  [4]~E(x41,x42)+E(f26(x41,x43),f26(x42,x43))
% 0.66/0.86  [5]~E(x51,x52)+E(f26(x53,x51),f26(x53,x52))
% 0.66/0.86  [6]~E(x61,x62)+E(f9(x61),f9(x62))
% 0.66/0.86  [7]~E(x71,x72)+E(f6(x71,x73),f6(x72,x73))
% 0.66/0.86  [8]~E(x81,x82)+E(f6(x83,x81),f6(x83,x82))
% 0.66/0.86  [9]~E(x91,x92)+E(f11(x91),f11(x92))
% 0.66/0.86  [10]~E(x101,x102)+E(f10(x101,x103),f10(x102,x103))
% 0.66/0.86  [11]~E(x111,x112)+E(f10(x113,x111),f10(x113,x112))
% 0.66/0.86  [12]~E(x121,x122)+E(f17(x121,x123,x124),f17(x122,x123,x124))
% 0.66/0.86  [13]~E(x131,x132)+E(f17(x133,x131,x134),f17(x133,x132,x134))
% 0.66/0.86  [14]~E(x141,x142)+E(f17(x143,x144,x141),f17(x143,x144,x142))
% 0.66/0.86  [15]~E(x151,x152)+E(f14(x151),f14(x152))
% 0.66/0.86  [16]~E(x161,x162)+E(f7(x161,x163),f7(x162,x163))
% 0.66/0.86  [17]~E(x171,x172)+E(f7(x173,x171),f7(x173,x172))
% 0.66/0.86  [18]~E(x181,x182)+E(f21(x181),f21(x182))
% 0.66/0.86  [19]~E(x191,x192)+E(f8(x191),f8(x192))
% 0.66/0.86  [20]~E(x201,x202)+E(f12(x201),f12(x202))
% 0.66/0.86  [21]~E(x211,x212)+E(f16(x211,x213),f16(x212,x213))
% 0.66/0.86  [22]~E(x221,x222)+E(f16(x223,x221),f16(x223,x222))
% 0.66/0.86  [23]~E(x231,x232)+E(f18(x231,x233,x234),f18(x232,x233,x234))
% 0.66/0.86  [24]~E(x241,x242)+E(f18(x243,x241,x244),f18(x243,x242,x244))
% 0.66/0.86  [25]~E(x251,x252)+E(f18(x253,x254,x251),f18(x253,x254,x252))
% 0.66/0.86  [26]~E(x261,x262)+E(f3(x261),f3(x262))
% 0.66/0.86  [27]~E(x271,x272)+E(f24(x271),f24(x272))
% 0.66/0.86  [28]~E(x281,x282)+E(f15(x281),f15(x282))
% 0.66/0.86  [29]~E(x291,x292)+E(f22(x291),f22(x292))
% 0.66/0.86  [30]~P1(x301)+P1(x302)+~E(x301,x302)
% 0.66/0.86  [31]~P2(x311)+P2(x312)+~E(x311,x312)
% 0.66/0.86  [32]P5(x322,x323)+~E(x321,x322)+~P5(x321,x323)
% 0.66/0.86  [33]P5(x333,x332)+~E(x331,x332)+~P5(x333,x331)
% 0.66/0.86  [34]P3(x342,x343,x344)+~E(x341,x342)+~P3(x341,x343,x344)
% 0.66/0.86  [35]P3(x353,x352,x354)+~E(x351,x352)+~P3(x353,x351,x354)
% 0.66/0.86  [36]P3(x363,x364,x362)+~E(x361,x362)+~P3(x363,x364,x361)
% 0.66/0.86  [37]P6(x372,x373)+~E(x371,x372)+~P6(x371,x373)
% 0.66/0.86  [38]P6(x383,x382)+~E(x381,x382)+~P6(x383,x381)
% 0.66/0.86  [39]~P8(x391)+P8(x392)+~E(x391,x392)
% 0.66/0.86  [40]P4(x402,x403,x404)+~E(x401,x402)+~P4(x401,x403,x404)
% 0.66/0.86  [41]P4(x413,x412,x414)+~E(x411,x412)+~P4(x413,x411,x414)
% 0.66/0.86  [42]P4(x423,x424,x422)+~E(x421,x422)+~P4(x423,x424,x421)
% 0.66/0.86  [43]~P7(x431)+P7(x432)+~E(x431,x432)
% 0.66/0.86  [44]~P9(x441)+P9(x442)+~E(x441,x442)
% 0.66/0.86  
% 0.66/0.86  %-------------------------------------------
% 0.66/0.86  cnf(191,plain,
% 0.66/0.86     (~P5(x1911,a4)),
% 0.66/0.86     inference(rename_variables,[],[73])).
% 0.66/0.86  cnf(194,plain,
% 0.66/0.86     (~P5(x1941,f10(f8(x1942),x1942))),
% 0.66/0.86     inference(rename_variables,[],[74])).
% 0.66/0.86  cnf(199,plain,
% 0.66/0.86     (~P5(x1991,f10(f8(x1992),x1992))),
% 0.66/0.86     inference(rename_variables,[],[74])).
% 0.66/0.86  cnf(212,plain,
% 0.66/0.86     (~P5(x2121,a4)),
% 0.66/0.86     inference(rename_variables,[],[73])).
% 0.66/0.86  cnf(215,plain,
% 0.66/0.86     (~P5(x2151,a4)),
% 0.66/0.86     inference(rename_variables,[],[73])).
% 0.66/0.86  cnf(219,plain,
% 0.66/0.86     (~E(f6(a19,a19),a4)),
% 0.66/0.86     inference(scs_inference,[],[66,51,73,191,212,215,64,74,194,2,81,90,154,100,155,136,165,164,160,180,179,38,37,33])).
% 0.66/0.86  cnf(220,plain,
% 0.66/0.86     (~P5(x2201,a4)),
% 0.66/0.86     inference(rename_variables,[],[73])).
% 0.66/0.86  cnf(230,plain,
% 0.66/0.86     (~P5(x2301,f10(f8(x2302),x2302))),
% 0.66/0.86     inference(rename_variables,[],[74])).
% 0.66/0.86  cnf(234,plain,
% 0.66/0.86     (~P5(x2341,a4)),
% 0.66/0.86     inference(rename_variables,[],[73])).
% 0.66/0.86  cnf(303,plain,
% 0.66/0.86     (~P5(x3031,a4)),
% 0.66/0.86     inference(rename_variables,[],[73])).
% 0.66/0.86  cnf(309,plain,
% 0.66/0.86     (E(f26(f26(f12(f26(f26(a25,a25),f26(a25,f26(a27,a27)))),f12(f26(f26(a25,a25),f26(a25,f26(a27,a27))))),f26(f12(f26(f26(a25,a25),f26(a25,f26(a27,a27)))),f26(f24(f26(f26(a25,a25),f26(a25,f26(a27,a27)))),f24(f26(f26(a25,a25),f26(a25,f26(a27,a27))))))),f26(f26(a25,a25),f26(a25,f26(a27,a27))))),
% 0.66/0.86     inference(scs_inference,[],[66,51,49,73,191,212,215,220,234,303,45,46,47,48,55,64,75,71,52,59,74,194,199,230,2,81,90,154,100,155,136,165,164,160,180,179,38,37,33,32,30,3,105,176,122,121,79,78,94,178,173,138,118,117,107,106,101,96,95,84,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,144,127,111,110,99,83,158,159,152,146])).
% 0.66/0.86  cnf(313,plain,
% 0.66/0.86     (P5(f26(f26(f12(f26(f26(a25,a25),f26(a25,f26(a27,a27)))),f12(f26(f26(a25,a25),f26(a25,f26(a27,a27))))),f26(f12(f26(f26(a25,a25),f26(a25,f26(a27,a27)))),f26(f24(f26(f26(a25,a25),f26(a25,f26(a27,a27)))),f24(f26(f26(a25,a25),f26(a25,f26(a27,a27))))))),f6(a19,a19))),
% 0.66/0.86     inference(scs_inference,[],[66,51,49,73,191,212,215,220,234,303,45,46,47,48,55,64,75,71,52,59,74,194,199,230,2,81,90,154,100,155,136,165,164,160,180,179,38,37,33,32,30,3,105,176,122,121,79,78,94,178,173,138,118,117,107,106,101,96,95,84,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,144,127,111,110,99,83,158,159,152,146,135,183])).
% 0.66/0.86  cnf(331,plain,
% 0.66/0.86     (P5(f26(x3311,x3312),a19)),
% 0.66/0.86     inference(rename_variables,[],[56])).
% 0.66/0.86  cnf(334,plain,
% 0.66/0.86     (P5(f26(x3341,x3342),a19)),
% 0.66/0.86     inference(rename_variables,[],[56])).
% 0.66/0.86  cnf(337,plain,
% 0.66/0.86     (P5(f26(x3371,x3372),a19)),
% 0.66/0.86     inference(rename_variables,[],[56])).
% 0.66/0.86  cnf(339,plain,
% 0.66/0.86     (~E(f26(f26(f26(x3391,x3391),f26(x3391,f26(f26(a25,a27),f26(a25,a27)))),f26(f26(x3391,x3391),f26(x3391,f26(f26(a25,a27),f26(a25,a27))))),f26(f26(f26(x3392,x3392),f26(x3392,f26(a4,a4))),f26(f26(x3392,x3392),f26(x3392,f26(a4,a4)))))),
% 0.66/0.86     inference(scs_inference,[],[66,51,49,50,73,191,212,215,220,234,303,45,46,47,48,55,64,75,71,56,331,334,337,52,59,74,194,199,230,2,81,90,154,100,155,136,165,164,160,180,179,38,37,33,32,30,3,105,176,122,121,79,78,94,178,173,138,118,117,107,106,101,96,95,84,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,144,127,111,110,99,83,158,159,152,146,135,183,31,104,98,102,174,123,114,184,150,113,112])).
% 0.66/0.86  cnf(390,plain,
% 0.66/0.86     ($false),
% 0.66/0.86     inference(scs_inference,[],[66,73,56,75,339,313,309,219,90,102,122,150,151,84,158]),
% 0.66/0.86     ['proof']).
% 0.66/0.86  % SZS output end Proof
% 0.66/0.86  % Total time :0.150000s
%------------------------------------------------------------------------------