consider R being non empty trivial reflexive RelStr ;
reconsider x = 0 , y = 1 as Element of {0 ,1} by TARSKI:def 2;
reconsider n = 0 ,1 --> y,x as UnOp of {0 ,1} ;
{0 } c= {0 ,1}
by ZFMISC_1:12;
then reconsider A = {0 } as Element of Fin {0 ,1} by FINSUB_1:def 5;
set f = the carrier of R --> A;
set T = TA-structure(# the carrier of R,{0 ,1},the InternalRel of R,n,(the carrier of R --> A) #);
RelStr(# the carrier of TA-structure(# the carrier of R,{0 ,1},the InternalRel of R,n,(the carrier of R --> A) #),the InternalRel of TA-structure(# the carrier of R,{0 ,1},the InternalRel of R,n,(the carrier of R --> A) #) #) = RelStr(# the carrier of R,the InternalRel of R #)
;
then reconsider T = TA-structure(# the carrier of R,{0 ,1},the InternalRel of R,n,(the carrier of R --> A) #) as non empty trivial reflexive strict TA-structure by WAYBEL_8:12;
take
T
; :: thesis: ( not T is void & T is Mizar-widening-like & T is involutive & T is without_fixpoints & T is consistent & T is adj-structured & T is adjs-typed )
thus
not T is void
; :: thesis: ( T is Mizar-widening-like & T is involutive & T is without_fixpoints & T is consistent & T is adj-structured & T is adjs-typed )
thus
T is Mizar-widening-like
; :: thesis: ( T is involutive & T is without_fixpoints & T is consistent & T is adj-structured & T is adjs-typed )
A1:
( 0 <> 1 & n . x = y & n . y = x )
by FUNCT_4:66;
hence
( T is involutive & T is without_fixpoints )
by Th4; :: thesis: ( T is consistent & T is adj-structured & T is adjs-typed )
let a be adjective of T; :: according to ABCMIZ_0:def 14 :: thesis: not (types a) \/ (types (non- a)) is empty
A3:
( ( a = 0 or a = 1 ) & non- a = n . a )
by TARSKI:def 2;
consider t being type of T;
adjs t = A
by FUNCOP_1:13;
then
( a in adjs t or non- a in adjs t )
by A1, A3, TARSKI:def 1;
then
( t in types a or t in types (non- a) )
by Th13;
hence
not (types a) \/ (types (non- a)) is empty
; :: thesis: verum