let L be lower-bounded sup-Semilattice; :: thesis: MonSet L is full SubRelStr of (InclPoset (Ids L)) |^ the carrier of L
set J = the carrier of L --> (InclPoset (Ids L));
A1:
the carrier of (MonSet L) c= the carrier of ((InclPoset (Ids L)) |^ the carrier of L)
A3:
the InternalRel of (MonSet L) c= the InternalRel of ((InclPoset (Ids L)) |^ the carrier of L)
proof
let a,
b be
set ;
:: according to RELAT_1:def 3 :: thesis: ( not [a,b] in the InternalRel of (MonSet L) or [a,b] in the InternalRel of ((InclPoset (Ids L)) |^ the carrier of L) )
assume
[a,b] in the
InternalRel of
(MonSet L)
;
:: thesis: [a,b] in the InternalRel of ((InclPoset (Ids L)) |^ the carrier of L)
then consider f,
g being
Function of
L,
(InclPoset (Ids L)) such that A4:
(
a = f &
b = g &
a in the
carrier of
(MonSet L) &
b in the
carrier of
(MonSet L) &
f <= g )
by Def14;
set AG =
product (the carrier of L --> (InclPoset (Ids L)));
A5:
product (the carrier of L --> (InclPoset (Ids L))) = (InclPoset (Ids L)) |^ the
carrier of
L
by YELLOW_1:def 5;
A6:
(
f in Funcs the
carrier of
L,the
carrier of
(InclPoset (Ids L)) &
g in Funcs the
carrier of
L,the
carrier of
(InclPoset (Ids L)) )
by FUNCT_2:11;
then A7:
(
f in the
carrier of
(product (the carrier of L --> (InclPoset (Ids L)))) &
g in the
carrier of
(product (the carrier of L --> (InclPoset (Ids L)))) )
by A5, YELLOW_1:28;
reconsider f' =
f,
g' =
g as
Element of
(product (the carrier of L --> (InclPoset (Ids L)))) by A5, A6, YELLOW_1:28;
A8:
f' in product (Carrier (the carrier of L --> (InclPoset (Ids L))))
by A7, YELLOW_1:def 4;
ex
ff,
gg being
Function st
(
ff = f' &
gg = g' & ( for
i being
set st
i in the
carrier of
L holds
ex
R being
RelStr ex
xi,
yi being
Element of
R st
(
R = (the carrier of L --> (InclPoset (Ids L))) . i &
xi = ff . i &
yi = gg . i &
xi <= yi ) ) )
proof
take
f
;
:: thesis: ex gg being Function st
( f = f' & gg = g' & ( for i being set st i in the carrier of L holds
ex R being RelStr ex xi, yi being Element of R st
( R = (the carrier of L --> (InclPoset (Ids L))) . i & xi = f . i & yi = gg . i & xi <= yi ) ) )
take
g
;
:: thesis: ( f = f' & g = g' & ( for i being set st i in the carrier of L holds
ex R being RelStr ex xi, yi being Element of R st
( R = (the carrier of L --> (InclPoset (Ids L))) . i & xi = f . i & yi = g . i & xi <= yi ) ) )
thus
(
f = f' &
g = g' )
;
:: thesis: for i being set st i in the carrier of L holds
ex R being RelStr ex xi, yi being Element of R st
( R = (the carrier of L --> (InclPoset (Ids L))) . i & xi = f . i & yi = g . i & xi <= yi )
let i be
set ;
:: thesis: ( i in the carrier of L implies ex R being RelStr ex xi, yi being Element of R st
( R = (the carrier of L --> (InclPoset (Ids L))) . i & xi = f . i & yi = g . i & xi <= yi ) )
assume A9:
i in the
carrier of
L
;
:: thesis: ex R being RelStr ex xi, yi being Element of R st
( R = (the carrier of L --> (InclPoset (Ids L))) . i & xi = f . i & yi = g . i & xi <= yi )
then reconsider i' =
i as
Element of
L ;
take R =
InclPoset (Ids L);
:: thesis: ex xi, yi being Element of R st
( R = (the carrier of L --> (InclPoset (Ids L))) . i & xi = f . i & yi = g . i & xi <= yi )
reconsider xi =
f . i',
yi =
g . i' as
Element of
R ;
take
xi
;
:: thesis: ex yi being Element of R st
( R = (the carrier of L --> (InclPoset (Ids L))) . i & xi = f . i & yi = g . i & xi <= yi )
take
yi
;
:: thesis: ( R = (the carrier of L --> (InclPoset (Ids L))) . i & xi = f . i & yi = g . i & xi <= yi )
thus
(
R = (the carrier of L --> (InclPoset (Ids L))) . i &
xi = f . i &
yi = g . i )
by A9, FUNCOP_1:13;
:: thesis: xi <= yi
reconsider i' =
i as
Element of
L by A9;
consider a,
b being
Element of
(InclPoset (Ids L)) such that A10:
(
a = f . i' &
b = g . i' &
a <= b )
by A4, YELLOW_2:def 1;
thus
xi <= yi
by A10;
:: thesis: verum
end;
then
f' <= g'
by A8, YELLOW_1:def 4;
then
[a,b] in the
InternalRel of
(product (the carrier of L --> (InclPoset (Ids L))))
by A4, ORDERS_2:def 9;
hence
[a,b] in the
InternalRel of
((InclPoset (Ids L)) |^ the carrier of L)
by YELLOW_1:def 5;
:: thesis: verum
end;
set J = the carrier of L --> (InclPoset (Ids L));
the InternalRel of (MonSet L) = the InternalRel of ((InclPoset (Ids L)) |^ the carrier of L) |_2 the carrier of (MonSet L)
proof
let a,
b be
set ;
:: according to RELAT_1:def 2 :: thesis: ( ( not [a,b] in the InternalRel of (MonSet L) or [a,b] in the InternalRel of ((InclPoset (Ids L)) |^ the carrier of L) |_2 the carrier of (MonSet L) ) & ( not [a,b] in the InternalRel of ((InclPoset (Ids L)) |^ the carrier of L) |_2 the carrier of (MonSet L) or [a,b] in the InternalRel of (MonSet L) ) )
thus
(
[a,b] in the
InternalRel of
(MonSet L) implies
[a,b] in the
InternalRel of
((InclPoset (Ids L)) |^ the carrier of L) |_2 the
carrier of
(MonSet L) )
by A3, XBOOLE_0:def 4;
:: thesis: ( not [a,b] in the InternalRel of ((InclPoset (Ids L)) |^ the carrier of L) |_2 the carrier of (MonSet L) or [a,b] in the InternalRel of (MonSet L) )
assume
[a,b] in the
InternalRel of
((InclPoset (Ids L)) |^ the carrier of L) |_2 the
carrier of
(MonSet L)
;
:: thesis: [a,b] in the InternalRel of (MonSet L)
then A11:
(
[a,b] in the
InternalRel of
((InclPoset (Ids L)) |^ the carrier of L) &
[a,b] in [:the carrier of (MonSet L),the carrier of (MonSet L):] )
by XBOOLE_0:def 4;
then A12:
(
a in the
carrier of
((InclPoset (Ids L)) |^ the carrier of L) &
b in the
carrier of
((InclPoset (Ids L)) |^ the carrier of L) )
by ZFMISC_1:106;
then A13:
(
a in the
carrier of
(product (the carrier of L --> (InclPoset (Ids L)))) &
b in the
carrier of
(product (the carrier of L --> (InclPoset (Ids L)))) )
by YELLOW_1:def 5;
reconsider a' =
a,
b' =
b as
Element of
(product (the carrier of L --> (InclPoset (Ids L)))) by A12, YELLOW_1:def 5;
[a',b'] in the
InternalRel of
(product (the carrier of L --> (InclPoset (Ids L))))
by A11, YELLOW_1:def 5;
then A14:
a' <= b'
by ORDERS_2:def 9;
a' in product (Carrier (the carrier of L --> (InclPoset (Ids L))))
by A13, YELLOW_1:def 4;
then consider f,
g being
Function such that A15:
(
f = a' &
g = b' & ( for
i being
set st
i in the
carrier of
L holds
ex
R being
RelStr ex
xi,
yi being
Element of
R st
(
R = (the carrier of L --> (InclPoset (Ids L))) . i &
xi = f . i &
yi = g . i &
xi <= yi ) ) )
by A14, YELLOW_1:def 4;
(
f in Funcs the
carrier of
L,the
carrier of
(InclPoset (Ids L)) &
g in Funcs the
carrier of
L,the
carrier of
(InclPoset (Ids L)) )
by A12, A15, YELLOW_1:28;
then reconsider f =
f,
g =
g as
Function of the
carrier of
L,the
carrier of
(InclPoset (Ids L)) by FUNCT_2:121;
reconsider f =
f,
g =
g as
Function of
L,
(InclPoset (Ids L)) ;
hence
[a,b] in the
InternalRel of
(MonSet L)
by Def14;
:: thesis: verum
end;
hence
MonSet L is full SubRelStr of (InclPoset (Ids L)) |^ the carrier of L
by A1, A3, YELLOW_0:def 13, YELLOW_0:def 14; :: thesis: verum