let D be non empty set ; for r being Real
for Y being RealNormSpace
for H being Functional_Sequence of D, the carrier of Y
for X being set st H is_point_conv_on X holds
( r (#) H is_point_conv_on X & lim ((r (#) H),X) = r (#) (lim (H,X)) )
let r be Real; for Y being RealNormSpace
for H being Functional_Sequence of D, the carrier of Y
for X being set st H is_point_conv_on X holds
( r (#) H is_point_conv_on X & lim ((r (#) H),X) = r (#) (lim (H,X)) )
let Y be RealNormSpace; for H being Functional_Sequence of D, the carrier of Y
for X being set st H is_point_conv_on X holds
( r (#) H is_point_conv_on X & lim ((r (#) H),X) = r (#) (lim (H,X)) )
let H be Functional_Sequence of D, the carrier of Y; for X being set st H is_point_conv_on X holds
( r (#) H is_point_conv_on X & lim ((r (#) H),X) = r (#) (lim (H,X)) )
let X be set ; ( H is_point_conv_on X implies ( r (#) H is_point_conv_on X & lim ((r (#) H),X) = r (#) (lim (H,X)) ) )
assume A1:
H is_point_conv_on X
; ( r (#) H is_point_conv_on X & lim ((r (#) H),X) = r (#) (lim (H,X)) )
A3:
now for x being Element of D st x in dom (r (#) (lim (H,X))) holds
(r (#) (lim (H,X))) . x = lim ((r (#) H) # x)let x be
Element of
D;
( x in dom (r (#) (lim (H,X))) implies (r (#) (lim (H,X))) . x = lim ((r (#) H) # x) )assume A4:
x in dom (r (#) (lim (H,X)))
;
(r (#) (lim (H,X))) . x = lim ((r (#) H) # x)then A5:
x in dom (lim (H,X))
by VFUNCT_1:def 4;
then A6:
x in X
by A1, Def13;
X1:
(lim (H,X)) /. x = (lim (H,X)) . x
by PARTFUN1:def 6, A5;
X2:
(r (#) (lim (H,X))) . x = (r (#) (lim (H,X))) /. x
by PARTFUN1:def 6, A4;
thus (r (#) (lim (H,X))) . x =
r * ((lim (H,X)) /. x)
by X2, A4, VFUNCT_1:def 4
.=
r * (lim (H # x))
by A1, A5, X1, Def13
.=
lim (r * (H # x))
by A6, A1, Th19, NORMSP_1:28
.=
lim ((r (#) H) # x)
by A1, A6, Th32
;
verum end;
A10:
r (#) H is_point_conv_on X
by A1, Th38, A8, Th19;
dom (r (#) (lim (H,X))) =
dom (lim (H,X))
by VFUNCT_1:def 4
.=
X
by A1, Def13
;
hence
( r (#) H is_point_conv_on X & lim ((r (#) H),X) = r (#) (lim (H,X)) )
by A10, A3, Def13; verum