TSTP Solution File: SEU353+1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : SEU353+1 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n004.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 : Wed Jul 27 13:15:49 EDT 2022

% Result   : Theorem 1.94s 2.19s
% Output   : Refutation 1.94s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    6
%            Number of leaves      :   17
% Syntax   : Number of clauses     :   32 (  19 unt;   5 nHn;  22 RR)
%            Number of literals    :   53 (  11 equ;  19 neg)
%            Maximal clause size   :    6 (   1 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :   12 (  10 usr;   1 prp; 0-3 aty)
%            Number of functors    :    9 (   9 usr;   2 con; 0-4 aty)
%            Number of variables   :   31 (   3 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(2,axiom,
    ( ~ relation_of2(A,B,C)
    | ~ function(A)
    | ~ v1_partfun1(A,B,C)
    | quasi_total(A,B,C) ),
    file('SEU353+1.p',unknown),
    [] ).

cnf(13,axiom,
    ( ~ one_sorted_str(A)
    | identity_on_carrier(A) = identity_as_relation_of(the_carrier(A)) ),
    file('SEU353+1.p',unknown),
    [] ).

cnf(14,plain,
    ( ~ one_sorted_str(A)
    | identity_as_relation_of(the_carrier(A)) = identity_on_carrier(A) ),
    inference(flip,[status(thm),theory(equality)],[inference(copy,[status(thm)],[13])]),
    [iquote('copy,13,flip.2')] ).

cnf(20,axiom,
    ( empty_carrier(A)
    | ~ one_sorted_str(A)
    | ~ empty(the_carrier(A)) ),
    file('SEU353+1.p',unknown),
    [] ).

cnf(28,axiom,
    ( empty(A)
    | ~ function(B)
    | ~ quasi_total(B,A,C)
    | ~ relation_of2(B,A,C)
    | ~ element(D,A)
    | apply_as_element(A,C,B,D) = apply(B,D) ),
    file('SEU353+1.p',unknown),
    [] ).

cnf(29,axiom,
    ( ~ relation_of2_as_subset(A,B,C)
    | relation_of2(A,B,C) ),
    file('SEU353+1.p',unknown),
    [] ).

cnf(32,axiom,
    ( ~ element(A,B)
    | empty(B)
    | in(A,B) ),
    file('SEU353+1.p',unknown),
    [] ).

cnf(33,axiom,
    ( ~ in(A,B)
    | apply(identity_relation(B),A) = A ),
    file('SEU353+1.p',unknown),
    [] ).

cnf(39,axiom,
    ( ~ in(A,B)
    | ~ empty(B) ),
    file('SEU353+1.p',unknown),
    [] ).

cnf(41,axiom,
    ~ empty_carrier(dollar_c7),
    file('SEU353+1.p',unknown),
    [] ).

cnf(42,axiom,
    apply_as_element(the_carrier(dollar_c7),the_carrier(dollar_c7),identity_on_carrier(dollar_c7),dollar_c6) != dollar_c6,
    file('SEU353+1.p',unknown),
    [] ).

cnf(48,axiom,
    v1_partfun1(identity_as_relation_of(A),A,A),
    file('SEU353+1.p',unknown),
    [] ).

cnf(49,axiom,
    relation_of2_as_subset(identity_as_relation_of(A),A,A),
    file('SEU353+1.p',unknown),
    [] ).

cnf(53,axiom,
    element(dollar_f2(A),A),
    file('SEU353+1.p',unknown),
    [] ).

cnf(56,axiom,
    function(identity_relation(A)),
    file('SEU353+1.p',unknown),
    [] ).

cnf(91,axiom,
    identity_as_relation_of(A) = identity_relation(A),
    file('SEU353+1.p',unknown),
    [] ).

cnf(93,plain,
    identity_relation(A) = identity_as_relation_of(A),
    inference(flip,[status(thm),theory(equality)],[inference(copy,[status(thm)],[91])]),
    [iquote('copy,91,flip.1')] ).

cnf(95,axiom,
    one_sorted_str(dollar_c7),
    file('SEU353+1.p',unknown),
    [] ).

cnf(96,axiom,
    element(dollar_c6,the_carrier(dollar_c7)),
    file('SEU353+1.p',unknown),
    [] ).

cnf(101,plain,
    function(identity_as_relation_of(A)),
    inference(demod,[status(thm),theory(equality)],[inference(back_demod,[status(thm)],[56]),93]),
    [iquote('back_demod,56,demod,93')] ).

cnf(103,plain,
    ( ~ in(A,B)
    | apply(identity_as_relation_of(B),A) = A ),
    inference(demod,[status(thm),theory(equality)],[inference(back_demod,[status(thm)],[33]),93]),
    [iquote('back_demod,33,demod,93')] ).

cnf(135,plain,
    relation_of2(identity_as_relation_of(A),A,A),
    inference(hyper,[status(thm)],[49,29]),
    [iquote('hyper,49,29')] ).

cnf(143,plain,
    identity_as_relation_of(the_carrier(dollar_c7)) = identity_on_carrier(dollar_c7),
    inference(hyper,[status(thm)],[95,14]),
    [iquote('hyper,95,14')] ).

cnf(154,plain,
    ( empty(A)
    | in(dollar_f2(A),A) ),
    inference(hyper,[status(thm)],[53,32]),
    [iquote('hyper,53,32')] ).

cnf(181,plain,
    ( empty(the_carrier(dollar_c7))
    | in(dollar_c6,the_carrier(dollar_c7)) ),
    inference(hyper,[status(thm)],[96,32]),
    [iquote('hyper,96,32')] ).

cnf(306,plain,
    quasi_total(identity_as_relation_of(A),A,A),
    inference(hyper,[status(thm)],[135,2,101,48]),
    [iquote('hyper,135,2,101,48')] ).

cnf(503,plain,
    ( empty(the_carrier(dollar_c7))
    | apply_as_element(the_carrier(dollar_c7),the_carrier(dollar_c7),identity_on_carrier(dollar_c7),dollar_c6) = apply(identity_on_carrier(dollar_c7),dollar_c6) ),
    inference(demod,[status(thm),theory(equality)],[inference(hyper,[status(thm)],[306,28,101,135,96]),143,143]),
    [iquote('hyper,306,28,101,135,96,demod,143,143')] ).

cnf(803,plain,
    in(dollar_f2(the_carrier(dollar_c7)),the_carrier(dollar_c7)),
    inference(unit_del,[status(thm)],[inference(hyper,[status(thm)],[154,20,95]),41]),
    [iquote('hyper,154,20,95,unit_del,41')] ).

cnf(1014,plain,
    in(dollar_c6,the_carrier(dollar_c7)),
    inference(hyper,[status(thm)],[181,39,803]),
    [iquote('hyper,181,39,803')] ).

cnf(1016,plain,
    apply(identity_on_carrier(dollar_c7),dollar_c6) = dollar_c6,
    inference(demod,[status(thm),theory(equality)],[inference(hyper,[status(thm)],[1014,103]),143]),
    [iquote('hyper,1014,103,demod,143')] ).

cnf(1017,plain,
    empty(the_carrier(dollar_c7)),
    inference(unit_del,[status(thm)],[inference(demod,[status(thm),theory(equality)],[inference(back_demod,[status(thm)],[503]),1016]),42]),
    [iquote('back_demod,503,demod,1016,unit_del,42')] ).

cnf(1030,plain,
    $false,
    inference(hyper,[status(thm)],[1017,39,1014]),
    [iquote('hyper,1017,39,1014')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : SEU353+1 : TPTP v8.1.0. Released v3.3.0.
% 0.11/0.12  % Command  : otter-tptp-script %s
% 0.12/0.33  % Computer : n004.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 300
% 0.12/0.33  % DateTime : Wed Jul 27 08:00:06 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 1.94/2.13  ----- Otter 3.3f, August 2004 -----
% 1.94/2.13  The process was started by sandbox2 on n004.cluster.edu,
% 1.94/2.13  Wed Jul 27 08:00:06 2022
% 1.94/2.13  The command was "./otter".  The process ID is 4060.
% 1.94/2.13  
% 1.94/2.13  set(prolog_style_variables).
% 1.94/2.13  set(auto).
% 1.94/2.13     dependent: set(auto1).
% 1.94/2.13     dependent: set(process_input).
% 1.94/2.13     dependent: clear(print_kept).
% 1.94/2.13     dependent: clear(print_new_demod).
% 1.94/2.13     dependent: clear(print_back_demod).
% 1.94/2.13     dependent: clear(print_back_sub).
% 1.94/2.13     dependent: set(control_memory).
% 1.94/2.13     dependent: assign(max_mem, 12000).
% 1.94/2.13     dependent: assign(pick_given_ratio, 4).
% 1.94/2.13     dependent: assign(stats_level, 1).
% 1.94/2.13     dependent: assign(max_seconds, 10800).
% 1.94/2.13  clear(print_given).
% 1.94/2.13  
% 1.94/2.13  formula_list(usable).
% 1.94/2.13  all A (A=A).
% 1.94/2.13  all A B (in(A,B)-> -in(B,A)).
% 1.94/2.13  all A B C (relation_of2(C,A,B)-> (function(C)&v1_partfun1(C,A,B)->function(C)&quasi_total(C,A,B))).
% 1.94/2.13  all A (relation(A)&symmetric(A)&transitive(A)->relation(A)&reflexive(A)).
% 1.94/2.13  all A B C (element(C,powerset(cartesian_product2(A,B)))->relation(C)).
% 1.94/2.13  all A B C (relation_of2(C,A,B)-> (function(C)&quasi_total(C,A,B)&bijective(C,A,B)->function(C)&one_to_one(C)&quasi_total(C,A,B)&onto(C,A,B))).
% 1.94/2.13  all A B C (relation_of2(C,A,B)-> (function(C)&one_to_one(C)&quasi_total(C,A,B)&onto(C,A,B)->function(C)&quasi_total(C,A,B)&bijective(C,A,B))).
% 1.94/2.13  all A B (relation_of2(B,A,A)-> (function(B)&v1_partfun1(B,A,A)&reflexive(B)&quasi_total(B,A,A)->function(B)&one_to_one(B)&quasi_total(B,A,A)&onto(B,A,A)&bijective(B,A,A))).
% 1.94/2.13  all A B (-empty(B)-> (all C (relation_of2(C,A,B)-> (function(C)&quasi_total(C,A,B)->function(C)&v1_partfun1(C,A,B)&quasi_total(C,A,B))))).
% 1.94/2.13  all A B (-empty(A)& -empty(B)-> (all C (relation_of2(C,A,B)-> (function(C)&quasi_total(C,A,B)->function(C)& -empty(C)&v1_partfun1(C,A,B)&quasi_total(C,A,B))))).
% 1.94/2.13  all A (one_sorted_str(A)->identity_on_carrier(A)=identity_as_relation_of(the_carrier(A))).
% 1.94/2.13  $T.
% 1.94/2.13  $T.
% 1.94/2.13  $T.
% 1.94/2.13  $T.
% 1.94/2.13  all A (v1_partfun1(identity_as_relation_of(A),A,A)&relation_of2_as_subset(identity_as_relation_of(A),A,A)).
% 1.94/2.13  all A relation(identity_relation(A)).
% 1.94/2.13  all A (one_sorted_str(A)->function(identity_on_carrier(A))&quasi_total(identity_on_carrier(A),the_carrier(A),the_carrier(A))&relation_of2_as_subset(identity_on_carrier(A),the_carrier(A),the_carrier(A))).
% 1.94/2.13  all A B C D (-empty(A)&function(C)&quasi_total(C,A,B)&relation_of2(C,A,B)&element(D,A)->element(apply_as_element(A,B,C,D),B)).
% 1.94/2.13  $T.
% 1.94/2.13  $T.
% 1.94/2.13  $T.
% 1.94/2.13  all A B C (relation_of2_as_subset(C,A,B)->element(C,powerset(cartesian_product2(A,B)))).
% 1.94/2.13  $T.
% 1.94/2.13  exists A one_sorted_str(A).
% 1.94/2.13  all A B exists C relation_of2(C,A,B).
% 1.94/2.13  all A exists B element(B,A).
% 1.94/2.13  all A B exists C relation_of2_as_subset(C,A,B).
% 1.94/2.13  all A (-empty_carrier(A)&one_sorted_str(A)-> -empty(the_carrier(A))).
% 1.94/2.13  all A (-empty(powerset(A))).
% 1.94/2.13  empty(empty_set).
% 1.94/2.13  all A (relation(identity_relation(A))&function(identity_relation(A))&reflexive(identity_relation(A))&symmetric(identity_relation(A))&antisymmetric(identity_relation(A))&transitive(identity_relation(A))).
% 1.94/2.13  all A B (-empty(A)& -empty(B)-> -empty(cartesian_product2(A,B))).
% 1.94/2.13  all A B exists C (relation_of2(C,A,B)&relation(C)&function(C)&quasi_total(C,A,B)).
% 1.94/2.13  exists A (relation(A)&function(A)&one_to_one(A)&empty(A)).
% 1.94/2.13  all A (-empty(A)-> (exists B (element(B,powerset(A))& -empty(B)))).
% 1.94/2.13  exists A empty(A).
% 1.94/2.13  all A exists B (relation_of2(B,A,A)&relation(B)&function(B)&one_to_one(B)&quasi_total(B,A,A)&onto(B,A,A)&bijective(B,A,A)).
% 1.94/2.13  all A B exists C (relation_of2(C,A,B)&relation(C)&function(C)).
% 1.94/2.13  all A exists B (element(B,powerset(A))&empty(B)).
% 1.94/2.13  exists A (-empty(A)).
% 1.94/2.13  all A exists B (relation_of2(B,A,A)&relation(B)&reflexive(B)&symmetric(B)&antisymmetric(B)&transitive(B)&v1_partfun1(B,A,A)).
% 1.94/2.13  exists A (one_sorted_str(A)& -empty_carrier(A)).
% 1.94/2.13  all A (-empty_carrier(A)&one_sorted_str(A)-> (exists B (element(B,powerset(the_carrier(A)))& -empty(B)))).
% 1.94/2.13  all A (identity_as_relation_of(A)=identity_relation(A)).
% 1.94/2.13  all A B C D (-empty(A)&function(C)&quasi_total(C,A,B)&relation_of2(C,A,B)&element(D,A)->apply_as_element(A,B,C,D)=apply(C,D)).
% 1.94/2.13  all A B C (relation_of2_as_subset(C,A,B)<->relation_of2(C,A,B)).
% 1.94/2.13  all A B subset(A,A).
% 1.94/2.13  all A B (in(A,B)->element(A,B)).
% 1.94/2.13  all A B (element(A,B)->empty(B)|in(A,B)).
% 1.94/2.13  all A B (in(B,A)->apply(identity_relation(A),B)=B).
% 1.94/2.13  all A B (element(A,powerset(B))<->subset(A,B)).
% 1.94/2.13  all A B C (in(A,B)&element(B,powerset(C))->element(A,C)).
% 1.94/2.13  all A B C (-(in(A,B)&element(B,powerset(C))&empty(C))).
% 1.94/2.13  all A (empty(A)->A=empty_set).
% 1.94/2.13  all A B (-(in(A,B)&empty(B))).
% 1.94/2.13  all A B (-(empty(A)&A!=B&empty(B))).
% 1.94/2.13  -(all A (-empty_carrier(A)&one_sorted_str(A)-> (all B (element(B,the_carrier(A))->apply_as_element(the_carrier(A),the_carrier(A),identity_on_carrier(A),B)=B)))).
% 1.94/2.13  end_of_list.
% 1.94/2.13  
% 1.94/2.13  -------> usable clausifies to:
% 1.94/2.13  
% 1.94/2.13  list(usable).
% 1.94/2.13  0 [] A=A.
% 1.94/2.13  0 [] -in(A,B)| -in(B,A).
% 1.94/2.13  0 [] -relation_of2(C,A,B)| -function(C)| -v1_partfun1(C,A,B)|quasi_total(C,A,B).
% 1.94/2.13  0 [] -relation(A)| -symmetric(A)| -transitive(A)|reflexive(A).
% 1.94/2.13  0 [] -element(C,powerset(cartesian_product2(A,B)))|relation(C).
% 1.94/2.13  0 [] -relation_of2(C,A,B)| -function(C)| -quasi_total(C,A,B)| -bijective(C,A,B)|one_to_one(C).
% 1.94/2.13  0 [] -relation_of2(C,A,B)| -function(C)| -quasi_total(C,A,B)| -bijective(C,A,B)|onto(C,A,B).
% 1.94/2.13  0 [] -relation_of2(C,A,B)| -function(C)| -one_to_one(C)| -quasi_total(C,A,B)| -onto(C,A,B)|bijective(C,A,B).
% 1.94/2.13  0 [] -relation_of2(B,A,A)| -function(B)| -v1_partfun1(B,A,A)| -reflexive(B)| -quasi_total(B,A,A)|one_to_one(B).
% 1.94/2.13  0 [] -relation_of2(B,A,A)| -function(B)| -v1_partfun1(B,A,A)| -reflexive(B)| -quasi_total(B,A,A)|onto(B,A,A).
% 1.94/2.13  0 [] -relation_of2(B,A,A)| -function(B)| -v1_partfun1(B,A,A)| -reflexive(B)| -quasi_total(B,A,A)|bijective(B,A,A).
% 1.94/2.13  0 [] empty(B)| -relation_of2(C,A,B)| -function(C)| -quasi_total(C,A,B)|v1_partfun1(C,A,B).
% 1.94/2.13  0 [] empty(A)|empty(B)| -relation_of2(C,A,B)| -function(C)| -quasi_total(C,A,B)| -empty(C).
% 1.94/2.13  0 [] empty(A)|empty(B)| -relation_of2(C,A,B)| -function(C)| -quasi_total(C,A,B)|v1_partfun1(C,A,B).
% 1.94/2.13  0 [] -one_sorted_str(A)|identity_on_carrier(A)=identity_as_relation_of(the_carrier(A)).
% 1.94/2.13  0 [] $T.
% 1.94/2.13  0 [] $T.
% 1.94/2.13  0 [] $T.
% 1.94/2.13  0 [] $T.
% 1.94/2.13  0 [] v1_partfun1(identity_as_relation_of(A),A,A).
% 1.94/2.13  0 [] relation_of2_as_subset(identity_as_relation_of(A),A,A).
% 1.94/2.13  0 [] relation(identity_relation(A)).
% 1.94/2.13  0 [] -one_sorted_str(A)|function(identity_on_carrier(A)).
% 1.94/2.13  0 [] -one_sorted_str(A)|quasi_total(identity_on_carrier(A),the_carrier(A),the_carrier(A)).
% 1.94/2.13  0 [] -one_sorted_str(A)|relation_of2_as_subset(identity_on_carrier(A),the_carrier(A),the_carrier(A)).
% 1.94/2.13  0 [] empty(A)| -function(C)| -quasi_total(C,A,B)| -relation_of2(C,A,B)| -element(D,A)|element(apply_as_element(A,B,C,D),B).
% 1.94/2.13  0 [] $T.
% 1.94/2.13  0 [] $T.
% 1.94/2.13  0 [] $T.
% 1.94/2.13  0 [] -relation_of2_as_subset(C,A,B)|element(C,powerset(cartesian_product2(A,B))).
% 1.94/2.13  0 [] $T.
% 1.94/2.13  0 [] one_sorted_str($c1).
% 1.94/2.13  0 [] relation_of2($f1(A,B),A,B).
% 1.94/2.13  0 [] element($f2(A),A).
% 1.94/2.13  0 [] relation_of2_as_subset($f3(A,B),A,B).
% 1.94/2.13  0 [] empty_carrier(A)| -one_sorted_str(A)| -empty(the_carrier(A)).
% 1.94/2.13  0 [] -empty(powerset(A)).
% 1.94/2.13  0 [] empty(empty_set).
% 1.94/2.13  0 [] relation(identity_relation(A)).
% 1.94/2.13  0 [] function(identity_relation(A)).
% 1.94/2.13  0 [] reflexive(identity_relation(A)).
% 1.94/2.13  0 [] symmetric(identity_relation(A)).
% 1.94/2.13  0 [] antisymmetric(identity_relation(A)).
% 1.94/2.13  0 [] transitive(identity_relation(A)).
% 1.94/2.13  0 [] empty(A)|empty(B)| -empty(cartesian_product2(A,B)).
% 1.94/2.13  0 [] relation_of2($f4(A,B),A,B).
% 1.94/2.13  0 [] relation($f4(A,B)).
% 1.94/2.13  0 [] function($f4(A,B)).
% 1.94/2.13  0 [] quasi_total($f4(A,B),A,B).
% 1.94/2.13  0 [] relation($c2).
% 1.94/2.13  0 [] function($c2).
% 1.94/2.13  0 [] one_to_one($c2).
% 1.94/2.13  0 [] empty($c2).
% 1.94/2.13  0 [] empty(A)|element($f5(A),powerset(A)).
% 1.94/2.13  0 [] empty(A)| -empty($f5(A)).
% 1.94/2.13  0 [] empty($c3).
% 1.94/2.13  0 [] relation_of2($f6(A),A,A).
% 1.94/2.13  0 [] relation($f6(A)).
% 1.94/2.13  0 [] function($f6(A)).
% 1.94/2.13  0 [] one_to_one($f6(A)).
% 1.94/2.13  0 [] quasi_total($f6(A),A,A).
% 1.94/2.13  0 [] onto($f6(A),A,A).
% 1.94/2.13  0 [] bijective($f6(A),A,A).
% 1.94/2.13  0 [] relation_of2($f7(A,B),A,B).
% 1.94/2.13  0 [] relation($f7(A,B)).
% 1.94/2.13  0 [] function($f7(A,B)).
% 1.94/2.13  0 [] element($f8(A),powerset(A)).
% 1.94/2.13  0 [] empty($f8(A)).
% 1.94/2.13  0 [] -empty($c4).
% 1.94/2.13  0 [] relation_of2($f9(A),A,A).
% 1.94/2.13  0 [] relation($f9(A)).
% 1.94/2.13  0 [] reflexive($f9(A)).
% 1.94/2.13  0 [] symmetric($f9(A)).
% 1.94/2.13  0 [] antisymmetric($f9(A)).
% 1.94/2.13  0 [] transitive($f9(A)).
% 1.94/2.13  0 [] v1_partfun1($f9(A),A,A).
% 1.94/2.13  0 [] one_sorted_str($c5).
% 1.94/2.13  0 [] -empty_carrier($c5).
% 1.94/2.13  0 [] empty_carrier(A)| -one_sorted_str(A)|element($f10(A),powerset(the_carrier(A))).
% 1.94/2.13  0 [] empty_carrier(A)| -one_sorted_str(A)| -empty($f10(A)).
% 1.94/2.13  0 [] identity_as_relation_of(A)=identity_relation(A).
% 1.94/2.13  0 [] empty(A)| -function(C)| -quasi_total(C,A,B)| -relation_of2(C,A,B)| -element(D,A)|apply_as_element(A,B,C,D)=apply(C,D).
% 1.94/2.13  0 [] -relation_of2_as_subset(C,A,B)|relation_of2(C,A,B).
% 1.94/2.13  0 [] relation_of2_as_subset(C,A,B)| -relation_of2(C,A,B).
% 1.94/2.13  0 [] subset(A,A).
% 1.94/2.13  0 [] -in(A,B)|element(A,B).
% 1.94/2.13  0 [] -element(A,B)|empty(B)|in(A,B).
% 1.94/2.13  0 [] -in(B,A)|apply(identity_relation(A),B)=B.
% 1.94/2.13  0 [] -element(A,powerset(B))|subset(A,B).
% 1.94/2.13  0 [] element(A,powerset(B))| -subset(A,B).
% 1.94/2.13  0 [] -in(A,B)| -element(B,powerset(C))|element(A,C).
% 1.94/2.13  0 [] -in(A,B)| -element(B,powerset(C))| -empty(C).
% 1.94/2.13  0 [] -empty(A)|A=empty_set.
% 1.94/2.13  0 [] -in(A,B)| -empty(B).
% 1.94/2.13  0 [] -empty(A)|A=B| -empty(B).
% 1.94/2.13  0 [] -empty_carrier($c7).
% 1.94/2.13  0 [] one_sorted_str($c7).
% 1.94/2.13  0 [] element($c6,the_carrier($c7)).
% 1.94/2.13  0 [] apply_as_element(the_carrier($c7),the_carrier($c7),identity_on_carrier($c7),$c6)!=$c6.
% 1.94/2.13  end_of_list.
% 1.94/2.13  
% 1.94/2.13  SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=6.
% 1.94/2.13  
% 1.94/2.13  This ia a non-Horn set with equality.  The strategy will be
% 1.94/2.13  Knuth-Bendix, ordered hyper_res, factoring, and unit
% 1.94/2.13  deletion, with positive clauses in sos and nonpositive
% 1.94/2.13  clauses in usable.
% 1.94/2.13  
% 1.94/2.13     dependent: set(knuth_bendix).
% 1.94/2.13     dependent: set(anl_eq).
% 1.94/2.13     dependent: set(para_from).
% 1.94/2.13     dependent: set(para_into).
% 1.94/2.13     dependent: clear(para_from_right).
% 1.94/2.13     dependent: clear(para_into_right).
% 1.94/2.13     dependent: set(para_from_vars).
% 1.94/2.13     dependent: set(eq_units_both_ways).
% 1.94/2.13     dependent: set(dynamic_demod_all).
% 1.94/2.13     dependent: set(dynamic_demod).
% 1.94/2.13     dependent: set(order_eq).
% 1.94/2.13     dependent: set(back_demod).
% 1.94/2.13     dependent: set(lrpo).
% 1.94/2.13     dependent: set(hyper_res).
% 1.94/2.13     dependent: set(unit_deletion).
% 1.94/2.13     dependent: set(factor).
% 1.94/2.13  
% 1.94/2.13  ------------> process usable:
% 1.94/2.13  ** KEPT (pick-wt=6): 1 [] -in(A,B)| -in(B,A).
% 1.94/2.13  ** KEPT (pick-wt=14): 2 [] -relation_of2(A,B,C)| -function(A)| -v1_partfun1(A,B,C)|quasi_total(A,B,C).
% 1.94/2.13  ** KEPT (pick-wt=8): 3 [] -relation(A)| -symmetric(A)| -transitive(A)|reflexive(A).
% 1.94/2.13  ** KEPT (pick-wt=8): 4 [] -element(A,powerset(cartesian_product2(B,C)))|relation(A).
% 1.94/2.13  ** KEPT (pick-wt=16): 5 [] -relation_of2(A,B,C)| -function(A)| -quasi_total(A,B,C)| -bijective(A,B,C)|one_to_one(A).
% 1.94/2.13  ** KEPT (pick-wt=18): 6 [] -relation_of2(A,B,C)| -function(A)| -quasi_total(A,B,C)| -bijective(A,B,C)|onto(A,B,C).
% 1.94/2.13  ** KEPT (pick-wt=20): 7 [] -relation_of2(A,B,C)| -function(A)| -one_to_one(A)| -quasi_total(A,B,C)| -onto(A,B,C)|bijective(A,B,C).
% 1.94/2.13  ** KEPT (pick-wt=18): 8 [] -relation_of2(A,B,B)| -function(A)| -v1_partfun1(A,B,B)| -reflexive(A)| -quasi_total(A,B,B)|one_to_one(A).
% 1.94/2.13  ** KEPT (pick-wt=20): 9 [] -relation_of2(A,B,B)| -function(A)| -v1_partfun1(A,B,B)| -reflexive(A)| -quasi_total(A,B,B)|onto(A,B,B).
% 1.94/2.13  ** KEPT (pick-wt=20): 10 [] -relation_of2(A,B,B)| -function(A)| -v1_partfun1(A,B,B)| -reflexive(A)| -quasi_total(A,B,B)|bijective(A,B,B).
% 1.94/2.13  ** KEPT (pick-wt=16): 11 [] empty(A)| -relation_of2(B,C,A)| -function(B)| -quasi_total(B,C,A)|v1_partfun1(B,C,A).
% 1.94/2.13  ** KEPT (pick-wt=16): 12 [] empty(A)|empty(B)| -relation_of2(C,A,B)| -function(C)| -quasi_total(C,A,B)| -empty(C).
% 1.94/2.13    Following clause subsumed by 11 during input processing: 0 [] empty(A)|empty(B)| -relation_of2(C,A,B)| -function(C)| -quasi_total(C,A,B)|v1_partfun1(C,A,B).
% 1.94/2.13  ** KEPT (pick-wt=8): 14 [copy,13,flip.2] -one_sorted_str(A)|identity_as_relation_of(the_carrier(A))=identity_on_carrier(A).
% 1.94/2.13  ** KEPT (pick-wt=5): 15 [] -one_sorted_str(A)|function(identity_on_carrier(A)).
% 1.94/2.13  ** KEPT (pick-wt=9): 16 [] -one_sorted_str(A)|quasi_total(identity_on_carrier(A),the_carrier(A),the_carrier(A)).
% 1.94/2.13  ** KEPT (pick-wt=9): 17 [] -one_sorted_str(A)|relation_of2_as_subset(identity_on_carrier(A),the_carrier(A),the_carrier(A)).
% 1.94/2.13  ** KEPT (pick-wt=22): 18 [] empty(A)| -function(B)| -quasi_total(B,A,C)| -relation_of2(B,A,C)| -element(D,A)|element(apply_as_element(A,C,B,D),C).
% 1.94/2.13  ** KEPT (pick-wt=10): 19 [] -relation_of2_as_subset(A,B,C)|element(A,powerset(cartesian_product2(B,C))).
% 1.94/2.13  ** KEPT (pick-wt=7): 20 [] empty_carrier(A)| -one_sorted_str(A)| -empty(the_carrier(A)).
% 1.94/2.13  ** KEPT (pick-wt=3): 21 [] -empty(powerset(A)).
% 1.94/2.13  ** KEPT (pick-wt=8): 22 [] empty(A)|empty(B)| -empty(cartesian_product2(A,B)).
% 1.94/2.13  ** KEPT (pick-wt=5): 23 [] empty(A)| -empty($f5(A)).
% 1.94/2.13  ** KEPT (pick-wt=2): 24 [] -empty($c4).
% 1.94/2.13  ** KEPT (pick-wt=2): 25 [] -empty_carrier($c5).
% 1.94/2.13  ** KEPT (pick-wt=10): 26 [] empty_carrier(A)| -one_sorted_str(A)|element($f10(A),powerset(the_carrier(A))).
% 1.94/2.13  ** KEPT (pick-wt=7): 27 [] empty_carrier(A)| -one_sorted_str(A)| -empty($f10(A)).
% 1.94/2.13  ** KEPT (pick-wt=24): 28 [] empty(A)| -function(B)| -quasi_total(B,A,C)| -relation_of2(B,A,C)| -element(D,A)|apply_as_element(A,C,B,D)=apply(B,D).
% 1.94/2.13  ** KEPT (pick-wt=8): 29 [] -relation_of2_as_subset(A,B,C)|relation_of2(A,B,C).
% 1.94/2.13  ** KEPT (pick-wt=8): 30 [] relation_of2_as_subset(A,B,C)| -relation_of2(A,B,C).
% 1.94/2.13  ** KEPT (pick-wt=6): 31 [] -in(A,B)|element(A,B).
% 1.94/2.13  ** KEPT (pick-wt=8): 32 [] -element(A,B)|empty(B)|in(A,B).
% 1.94/2.13  ** KEPT (pick-wt=9): 33 [] -in(A,B)|apply(identity_relation(B),A)=A.
% 1.94/2.13  ** KEPT (pick-wt=7): 34 [] -element(A,powerset(B))|subset(A,B).
% 1.94/2.13  ** KEPT (pick-wt=7): 35 [] element(A,powerset(B))| -subset(A,B).
% 1.94/2.13  ** KEPT (pick-wt=10): 36 [] -in(A,B)| -element(B,powerset(C))|element(A,C).
% 1.94/2.13  ** KEPT (pick-wt=9): 37 [] -in(A,B)| -element(B,powerset(C))| -empty(C).
% 1.94/2.13  ** KEPT (pick-wt=5): 38 [] -empty(A)|A=empty_set.
% 1.94/2.13  ** KEPT (pick-wt=5): 39 [] -in(A,B)| -empty(B).
% 1.94/2.13  ** KEPT (pick-wt=7): 40 [] -empty(A)|A=B| -empty(B).
% 1.94/2.13  ** KEPT (pick-wt=2): 41 [] -empty_carrier($c7).
% 1.94/2.13  ** KEPT (pick-wt=10): 42 [] apply_as_element(the_carrier($c7),the_carrier($c7),identity_on_carrier($c7),$c6)!=$c6.
% 1.94/2.13  
% 1.94/2.13  ------------> process sos:
% 1.94/2.13  ** KEPT (pick-wt=3): 47 [] A=A.
% 1.94/2.13  ** KEPT (pick-wt=5): 48 [] v1_partfun1(identity_as_relation_of(A),A,A).
% 1.94/2.13  ** KEPT (pick-wt=5): 49 [] relation_of2_as_subset(identity_as_relation_of(A),A,A).
% 1.94/2.13  ** KEPT (pick-wt=3): 50 [] relation(identity_relation(A)).
% 1.94/2.13  ** KEPT (pick-wt=2): 51 [] one_sorted_str($c1).
% 1.94/2.13  ** KEPT (pick-wt=6): 52 [] relation_of2($f1(A,B),A,B).
% 1.94/2.13  ** KEPT (pick-wt=4): 53 [] element($f2(A),A).
% 1.94/2.13  ** KEPT (pick-wt=6): 54 [] relation_of2_as_subset($f3(A,B),A,B).
% 1.94/2.13  ** KEPT (pick-wt=2): 55 [] empty(empty_set).
% 1.94/2.13    Following clause subsumed by 50 during input processing: 0 [] relation(identity_relation(A)).
% 1.94/2.13  ** KEPT (pick-wt=3): 56 [] function(identity_relation(A)).
% 1.94/2.13  ** KEPT (pick-wt=3): 57 [] reflexive(identity_relation(A)).
% 1.94/2.13  ** KEPT (pick-wt=3): 58 [] symmetric(identity_relation(A)).
% 1.94/2.13  ** KEPT (pick-wt=3): 59 [] antisymmetric(identity_relation(A)).
% 1.94/2.13  ** KEPT (pick-wt=3): 60 [] transitive(identity_relation(A)).
% 1.94/2.13  ** KEPT (pick-wt=6): 61 [] relation_of2($f4(A,B),A,B).
% 1.94/2.13  ** KEPT (pick-wt=4): 62 [] relation($f4(A,B)).
% 1.94/2.13  ** KEPT (pick-wt=4): 63 [] function($f4(A,B)).
% 1.94/2.13  ** KEPT (pick-wt=6): 64 [] quasi_total($f4(A,B),A,B).
% 1.94/2.13  ** KEPT (pick-wt=2): 65 [] relation($c2).
% 1.94/2.13  ** KEPT (pick-wt=2): 66 [] function($c2).
% 1.94/2.13  ** KEPT (pick-wt=2): 67 [] one_to_one($c2).
% 1.94/2.13  ** KEPT (pick-wt=2): 68 [] empty($c2).
% 1.94/2.13  ** KEPT (pick-wt=7): 69 [] empty(A)|element($f5(A),powerset(A)).
% 1.94/2.13  ** KEPT (pick-wt=2): 70 [] empty($c3).
% 1.94/2.13  ** KEPT (pick-wt=5): 71 [] relation_of2($f6(A),A,A).
% 1.94/2.13  ** KEPT (pick-wt=3): 72 [] relation($f6(A)).
% 1.94/2.13  ** KEPT (pick-wt=3): 73 [] function($f6(A)).
% 1.94/2.13  ** KEPT (pick-wt=3): 74 [] one_to_one($f6(A)).
% 1.94/2.13  ** KEPT (pick-wt=5): 75 [] quasi_total($f6(A),A,A).
% 1.94/2.13  ** KEPT (pick-wt=5): 76 [] onto($f6(A),A,A).
% 1.94/2.13  ** KEPT (pick-wt=5): 77 [] bijective($f6(A),A,A).
% 1.94/2.13  ** KEPT (pick-wt=6): 78 [] relation_of2($f7(A,B),A,B).
% 1.94/2.13  ** KEPT (pick-wt=4): 79 [] relation($f7(A,B)).
% 1.94/2.13  ** KEPT (pick-wt=4): 80 [] function($f7(A,B)).
% 1.94/2.13  ** KEPT (pick-wt=5): 81 [] element($f8(A),powerset(A)).
% 1.94/2.13  ** KEPT (pick-wt=3): 82 [] empty($f8(A)).
% 1.94/2.13  ** KEPT (pick-wt=5): 83 [] relation_of2($f9(A),A,A).
% 1.94/2.13  ** KEPT (pick-wt=3): 84 [] relation($f9(A)).
% 1.94/2.13  ** KEPT (pick-wt=3): 85 [] reflexive($f9(A)).
% 1.94/2.13  ** KEPT (pick-wt=3): 86 [] symmetric($f9(A)).
% 1.94/2.13  ** KEPT (pick-wt=3): 87 [] antisymmetric($f9(A)).
% 1.94/2.13  ** KEPT (pick-wt=3): 88 [] transitive($f9(A)).
% 1.94/2.13  ** KEPT (pick-wt=5): 89 [] v1_partfun1($f9(A),A,A).
% 1.94/2.13  ** KEPT (pick-wt=2): 90 [] one_sorted_str($c5).
% 1.94/2.13  ** KEPT (pick-wt=5): 92 [copy,91,flip.1] identity_relation(A)=identity_as_relation_of(A).
% 1.94/2.13  ---> New Demodulator: 93 [new_demod,92] identity_relation(A)=identity_as_relation_of(A).
% 1.94/2.13  ** KEPT (pick-wt=3): 94 [] subset(A,A).
% 1.94/2.13  ** KEPT (pick-wt=2): 95 [] one_sorted_str($c7).
% 1.94/2.13  ** KEPT (pick-wt=4): 96 [] element($c6,the_carrier($c7)).
% 1.94/2.13    Following clause subsumed by 47 during input processing: 0 [copy,47,flip.1] A=A.
% 1.94/2.13  47 back subsumes 46.
% 1.94/2.13  >>>> Starting back demodulation with 93.
% 1.94/2.13      >> back demodulating 60 with 93.
% 1.94/2.19      >> back demodulating 59 with 93.
% 1.94/2.19      >> back demodulating 58 with 93.
% 1.94/2.19      >> back demodulating 57 with 93.
% 1.94/2.19      >> back demodulating 56 with 93.
% 1.94/2.19      >> back demodulating 50 with 93.
% 1.94/2.19      >> back demodulating 33 with 93.
% 1.94/2.19  
% 1.94/2.19  ======= end of input processing =======
% 1.94/2.19  
% 1.94/2.19  =========== start of search ===========
% 1.94/2.19  
% 1.94/2.19  
% 1.94/2.19  Resetting weight limit to 7.
% 1.94/2.19  
% 1.94/2.19  
% 1.94/2.19  Resetting weight limit to 7.
% 1.94/2.19  
% 1.94/2.19  sos_size=695
% 1.94/2.19  
% 1.94/2.19  -------- PROOF -------- 
% 1.94/2.19  
% 1.94/2.19  -----> EMPTY CLAUSE at   0.06 sec ----> 1030 [hyper,1017,39,1014] $F.
% 1.94/2.19  
% 1.94/2.19  Length of proof is 14.  Level of proof is 5.
% 1.94/2.19  
% 1.94/2.19  ---------------- PROOF ----------------
% 1.94/2.19  % SZS status Theorem
% 1.94/2.19  % SZS output start Refutation
% See solution above
% 1.94/2.19  ------------ end of proof -------------
% 1.94/2.19  
% 1.94/2.19  
% 1.94/2.19  Search stopped by max_proofs option.
% 1.94/2.19  
% 1.94/2.19  
% 1.94/2.19  Search stopped by max_proofs option.
% 1.94/2.19  
% 1.94/2.19  ============ end of search ============
% 1.94/2.19  
% 1.94/2.19  -------------- statistics -------------
% 1.94/2.19  clauses given                220
% 1.94/2.19  clauses generated           2188
% 1.94/2.19  clauses kept                 986
% 1.94/2.19  clauses forward subsumed    1101
% 1.94/2.19  clauses back subsumed         12
% 1.94/2.19  Kbytes malloced             4882
% 1.94/2.19  
% 1.94/2.19  ----------- times (seconds) -----------
% 1.94/2.19  user CPU time          0.06          (0 hr, 0 min, 0 sec)
% 1.94/2.19  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 1.94/2.19  wall-clock time        2             (0 hr, 0 min, 2 sec)
% 1.94/2.19  
% 1.94/2.19  That finishes the proof of the theorem.
% 1.94/2.19  
% 1.94/2.19  Process 4060 finished Wed Jul 27 08:00:08 2022
% 1.94/2.19  Otter interrupted
% 1.94/2.19  PROOF FOUND
%------------------------------------------------------------------------------