... spaces
1
Such a basis argument requires the Axiom of Choice, but there are similar examples that do not. See Problem AA-
and Problem AA-
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
![[*]](/lib/latex2html-icons/crossref.gif){kind=icon}
and Problem AA-.
and Problem AA-.