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feat: morphisms of presheaves that are locally injective for a Grothendieck topology
This PR creates the file CategoryTheory.Sites.LocallyInjective which develops the basic API of locally injective morphisms of presheaves. The file CategoryTheory.Sites.Surjective is renamed CategoryTheory.Sites.LocallySurjective and shall be expanded in a future PR.
- [x] depends on: #12332
This PR/issue depends on:
- ~~leanprover-community/mathlib4#12332~~ By Dependent Issues (🤖). Happy coding!
Thanks! maintainer merge
🚀 Pull request has been placed on the maintainer queue by erdOne.
Thanks!
bors merge
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