Skip to content

[Merged by Bors] - chore(CategoryTheory/Sites/Descent/Precoverage): deprecate duplicate theorem #41553

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
tb65536 wants to merge 1 commit into from
+2 −1
Closed

[Merged by Bors] - chore(CategoryTheory/Sites/Descent/Precoverage): deprecate duplicate theorem #41553

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion Mathlib/CategoryTheory/Sites/Descent/Precoverage.lean
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -397,7 +397,7 @@ lemma IsPrestack.of_precoverage
obtain ⟨R', hR'⟩ := (Sieve.overEquiv _).symm.surjective (Sieve.generate R)
rw [Presieve.isSheafFor_iff_generate]
apply IsPrestackFor.isSheafFor'
simpa [Sieve.overEquiv_generate, Presieve.functorPushforward_overForget]
simpa [Sieve.overEquiv_generate, ← Sieve.arrows_generate_map_eq_functorPushforward]
using hF _ _ hR

/-- If a precoverage satisfies `HasIsos`, `IsStableUnderBaseChange` and
Expand Down
1 change: 1 addition & 0 deletions Mathlib/CategoryTheory/Sites/Sieves.lean
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1485,6 +1485,7 @@ lemma Presieve.bind_ofArrows_le_bindOfArrows {ι : Type*} {X : C} (Z : ι → C)
rw [← Sieve.ofArrows.fac hv', ← reassoc_of% hu]
exact ⟨S, u, u' ≫ f _, ⟨_, _, h⟩, rfl⟩

@[deprecated "Use Sieve.arrows_generate_map_eq_functorPushforward instead." (since := "2026-07-09")]
lemma Presieve.functorPushforward_overForget
{S : C} {X : Over S} (R : Presieve X) :
Presieve.functorPushforward (Over.forget S) R =
Expand Down
Loading