[Merged by Bors] - feat(CategoryTheory/Limits): the end of a functor

[joelriou]

In this file, given a functor F : Jᵒᵖ ⥤ J ⥤ C, we define its end end_ F. It is a particular case of multiequalizer. The abbreviation Wedge for the corresponding category of cones is also introduced.

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• depends on: [Merged by Bors] - chore(CategoryTheory): generalize universes for multiequalizers #17997

[github-actions]

PR summary 06d970de53

Import changes for modified files

No significant changes to the import graph

Import changes for all files

Files	Import difference
Mathlib.CategoryTheory.Limits.Shapes.End	417

---

Declarations diff

+ HasEnd
+ Wedge
+ condition
+ end_
+ end_.condition
+ end_.lift
+ end_.lift_π
+ end_.π
+ lift
+ lift_ι
+ mk
+ mk_ι
+ multicospanIndexEnd
++ hom_ext

You can run this locally as follows

## summary with just the declaration names:
./scripts/declarations_diff.sh <optional_commit>

## more verbose report:
./scripts/declarations_diff.sh long <optional_commit>

The doc-module for script/declarations_diff.sh contains some details about this script.

[mathlib4-dependent-issues-bot]

This PR/issue depends on:

• [Merged by Bors] - chore(CategoryTheory): generalize universes for multiequalizers #17997
  By Dependent Issues (🤖). Happy coding!

[dagurtomas]

Thanks!

maintainer merge

[github-actions]

🚀 Pull request has been placed on the maintainer queue by dagurtomas.

[jcommelin]

bors d+

[mathlib-bors]

✌️ joelriou can now approve this pull request. To approve and merge a pull request, simply reply with bors r+. More detailed instructions are available here.

[joelriou]

Thanks very much!

bors merge

[mathlib-bors]

Pull request successfully merged into master.

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