Commit 2022-09-30 06:01 667f2a62
View on Github βfeat(analysis/normed_space/basic): add norm_algebra_map_nnreal
(#16709)
This adds simp
lemmas saying that β₯algebra_map ββ₯0 π xβ₯ = x
and similarly for β₯β¬β₯β
whenever π
is a normed β
-algebra and satisfies norm_one_class
. These are needed separately from norm_algebra_map'
and nnnorm_algebra_map'
because π
cannot be a normed ββ₯0
-algebra for the simple reason that ββ₯0
is not a normed field.