Now that the topological hierarchy includes entourage
, what is the good way to prove that some set is a nbhs
in a normed space ? Previously, applying locallyP
let to an inductive goal allowing to apply exists r
where r
is the radius of a ball included in this nbhs
. Now applying nbhsP
leads to a goal mentioning entourage
which I don't know how to handle.
At this point I have been using either nbhs_nbhs_norm
or nbhs_ballP
, and unfolding defintions as fmap
to work around that.
Shouldn't applications of nbhsP
be turned into applications fo nbhs_ballP
to recover the same behavior? (At least that's why I read from the commit that introduced entourages.)
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Last updated: Apr 18 2024 at 22:02 UTC