let X be non empty set ; for F being Point of (R_Normed_Algebra_of_BoundedFunctions X) holds (Mult_ (BoundedFunctions X),(RAlgebra X)) . 1,F = F
let F be Point of (R_Normed_Algebra_of_BoundedFunctions X); (Mult_ (BoundedFunctions X),(RAlgebra X)) . 1,F = F
set X1 = BoundedFunctions X;
reconsider f1 = F as Element of BoundedFunctions X ;
A1:
[1,f1] in [:REAL ,(BoundedFunctions X):]
by ZFMISC_1:106;
thus (Mult_ (BoundedFunctions X),(RAlgebra X)) . 1,F =
(the Mult of (RAlgebra X) | [:REAL ,(BoundedFunctions X):]) . 1,f1
by Def11
.=
the Mult of (RAlgebra X) . 1,f1
by A1, FUNCT_1:72
.=
F
by FUNCSDOM:23
; verum