%------------------------------------------------------------------------------
% File     : SEV462^1 : TPTP v8.2.0. Released v7.0.0.
% Domain   : Analysis
% Problem  : UNIONS_MONO_IMAGE
% Version  : Especial.
% English  :

% Refs     : [Kal16] Kalisyk (2016), Email to Geoff Sutcliffe
% Source   : [Kal16]
% Names    : UNIONS_MONO_IMAGE_.p [Kal16]

% Status   : Theorem
% Rating   : 0.67 v8.1.0, 1.00 v7.5.0, 0.67 v7.2.0, 0.75 v7.1.0
% Syntax   : Number of formulae    :   11 (   5 unt;   5 typ;   0 def)
%            Number of atoms       :   24 (   6 equ;   0 cnn)
%            Maximal formula atoms :    7 (   4 avg)
%            Number of connectives :   65 (   0   ~;   0   |;   2   &;  60   @)
%                                         (   0 <=>;   3  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   14 (   6 avg)
%            Number of types       :    1 (   0 usr)
%            Number of type conns  :   33 (  33   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    6 (   5 usr;   0 con; 2-5 aty)
%            Number of variables   :   31 (   0   ^;  23   !;   2   ?;  31   :)
%                                         (   6  !>;   0  ?*;   0  @-;   0  @+)
% SPC      : TH1_THM_EQU_NAR

% Comments : Exported from core HOL Light.
%------------------------------------------------------------------------------
thf('thf_const_const/trivia/I',type,
    'const/trivia/I': 
      !>[A: $tType] : ( A > A ) ).

thf('thf_const_const/sets/UNIONS',type,
    'const/sets/UNIONS': 
      !>[A: $tType] : ( ( ( A > $o ) > $o ) > A > $o ) ).

thf('thf_const_const/sets/SUBSET',type,
    'const/sets/SUBSET': 
      !>[A: $tType] : ( ( A > $o ) > ( A > $o ) > $o ) ).

thf('thf_const_const/sets/IN',type,
    'const/sets/IN': 
      !>[A: $tType] : ( A > ( A > $o ) > $o ) ).

thf('thf_const_const/sets/IMAGE',type,
    'const/sets/IMAGE': 
      !>[A: $tType,B: $tType] : ( ( A > B ) > ( A > $o ) > B > $o ) ).

thf('thm/trivia/I_THM_',axiom,
    ! [A: $tType,A0: A] :
      ( ( 'const/trivia/I' @ A @ A0 )
      = A0 ) ).

thf('thm/sets/IN_',axiom,
    ! [A: $tType,P: A > $o,A0: A] :
      ( ( 'const/sets/IN' @ A @ A0 @ P )
      = ( P @ A0 ) ) ).

thf('thm/sets/IN_IMAGE_',axiom,
    ! [B: $tType,A: $tType,A0: B,A1: A > $o,A2: A > B] :
      ( ( 'const/sets/IN' @ B @ A0 @ ( 'const/sets/IMAGE' @ A @ B @ A2 @ A1 ) )
      = ( ? [A3: A] :
            ( ( A0
              = ( A2 @ A3 ) )
            & ( 'const/sets/IN' @ A @ A3 @ A1 ) ) ) ) ).

thf('thm/sets/IN_UNIONS_',axiom,
    ! [A: $tType,A0: ( A > $o ) > $o,A1: A] :
      ( ( 'const/sets/IN' @ A @ A1 @ ( 'const/sets/UNIONS' @ A @ A0 ) )
      = ( ? [A2: A > $o] :
            ( ( 'const/sets/IN' @ ( A > $o ) @ A2 @ A0 )
            & ( 'const/sets/IN' @ A @ A1 @ A2 ) ) ) ) ).

thf('thm/sets/SUBSET_',axiom,
    ! [A: $tType,A0: A > $o,A1: A > $o] :
      ( ( 'const/sets/SUBSET' @ A @ A0 @ A1 )
      = ( ! [A2: A] :
            ( ( 'const/sets/IN' @ A @ A2 @ A0 )
           => ( 'const/sets/IN' @ A @ A2 @ A1 ) ) ) ) ).

thf('thm/sets/UNIONS_MONO_IMAGE_',conjecture,
    ! [A: $tType,A0: $tType,A1: A0 > A > $o,A2: A0 > A > $o,A3: A0 > $o] :
      ( ! [A4: A0] :
          ( ( 'const/sets/IN' @ A0 @ A4 @ A3 )
         => ( 'const/sets/SUBSET' @ A @ ( A1 @ A4 ) @ ( A2 @ A4 ) ) )
     => ( 'const/sets/SUBSET' @ A @ ( 'const/sets/UNIONS' @ A @ ( 'const/sets/IMAGE' @ A0 @ ( A > $o ) @ A1 @ A3 ) ) @ ( 'const/sets/UNIONS' @ A @ ( 'const/sets/IMAGE' @ A0 @ ( A > $o ) @ A2 @ A3 ) ) ) ) ).

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