Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
feat(Data/Set/Lattice, Order/Filter/Basic): more lemmas about `kernIm…
…age` and filter analog (#5744) Co-authored-by: Junyan Xu <junyanxumath@gmail.com> @alreadydone This was originally discussed on Zulip, and Junyan made most of the work in [this message](https://leanprover.zulipchat.com/#narrow/stream/217875-Is-there-code-for-X.3F/topic/congruence.20of.20filters.20for.20tendsto/near/294976522). I just changed some proofs to use a bit more Galois connections. This is a bit of a gadget but it does simplify the proof of `comap_iSup`, and it will also be convenient to define the space of functions with support a compact subset of a fixed set. See [this message](https://leanprover.zulipchat.com/#narrow/stream/217875-Is-there-code-for-X.3F/topic/congruence.20of.20filters.20for.20tendsto/near/302238889) for more details.
- Loading branch information
Showing
3 changed files
with
111 additions
and
22 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters