let X, Y be non empty TopSpace; :: thesis: for S being Scott TopAugmentation of InclPoset the topology of Y
for f1, f2 being Element of (ContMaps X,S) st f1 <= f2 holds
*graph f1 c= *graph f2
let S be Scott TopAugmentation of InclPoset the topology of Y; :: thesis: for f1, f2 being Element of (ContMaps X,S) st f1 <= f2 holds
*graph f1 c= *graph f2
let f1, f2 be Element of (ContMaps X,S); :: thesis: ( f1 <= f2 implies *graph f1 c= *graph f2 )
assume A1:
f1 <= f2
; :: thesis: *graph f1 c= *graph f2
let a, b be set ; :: according to RELAT_1:def 3 :: thesis: ( not [a,b] in *graph f1 or [a,b] in *graph f2 )
assume A2:
[a,b] in *graph f1
; :: thesis: [a,b] in *graph f2
( f1 is Function of X,S & f2 is Function of X,S )
by WAYBEL24:21;
then A3:
( dom f1 = the carrier of X & dom f2 = the carrier of X )
by FUNCT_2:def 1;
A4:
( a in dom f1 & b in f1 . a )
by A2, WAYBEL26:39;
reconsider a' = a as Element of X by A2, A3, WAYBEL26:39;
A5:
RelStr(# the carrier of S,the InternalRel of S #) = RelStr(# the carrier of (InclPoset the topology of Y),the InternalRel of (InclPoset the topology of Y) #)
by YELLOW_9:def 4;
reconsider F1 = f1, F2 = f2 as Function of X,S by WAYBEL24:21;
F1 . a' is Element of S
;
then
f1 . a in the carrier of (InclPoset the topology of Y)
by A5;
then A6:
f1 . a in the topology of Y
by YELLOW_1:1;
F2 . a' is Element of S
;
then
f2 . a in the carrier of (InclPoset the topology of Y)
by A5;
then A7:
f2 . a in the topology of Y
by YELLOW_1:1;
[(f1 . a'),(f2 . a')] in the InternalRel of S
by A1, WAYBEL24:20;
then
[(f1 . a),(f2 . a)] in RelIncl the topology of Y
by A5, YELLOW_1:1;
then
f1 . a c= f2 . a
by A6, A7, WELLORD2:def 1;
hence
[a,b] in *graph f2
by A3, A4, WAYBEL26:39; :: thesis: verum