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

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@joelriou joelriou commented Oct 21, 2024

Multi(co)equalizers involve two index sets. Until now, they were assumed to be in the same universe. In this PR, we allow two distinct universes. This shall ease the formalisation of (co)ends, which require heterogeneous universes.


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@joelriou joelriou added WIP Work in progress t-category-theory Category theory labels Oct 21, 2024
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github-actions bot commented Oct 21, 2024

PR summary 759a41238a

Import changes for modified files

No significant changes to the import graph

Import changes for all files
Files Import difference

Declarations diff

+-+- Hom

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.

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Thanks!

maintainer merge

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

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Thanks!
bors d+

Mathlib/CategoryTheory/Limits/Shapes/Multiequalizer.lean Outdated Show resolved Hide resolved
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mathlib-bors bot commented Oct 24, 2024

✌️ 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.

Co-authored-by: Markus Himmel <markus@himmel-villmar.de>
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Thanks!

bors merge

@github-actions github-actions bot added the ready-to-merge This PR has been sent to bors. label Oct 24, 2024
mathlib-bors bot pushed a commit that referenced this pull request Oct 24, 2024
Multi(co)equalizers involve two index sets. Until now, they were assumed to be in the same universe. In this PR, we allow two distinct universes. This shall ease the formalisation of (co)ends, which require heterogeneous universes.



Co-authored-by: Joël Riou <37772949+joelriou@users.noreply.github.com>
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mathlib-bors bot commented Oct 24, 2024

Pull request successfully merged into master.

Build succeeded:

@mathlib-bors mathlib-bors bot changed the title chore(CategoryTheory): generalize universes for multiequalizers [Merged by Bors] - chore(CategoryTheory): generalize universes for multiequalizers Oct 24, 2024
@mathlib-bors mathlib-bors bot closed this Oct 24, 2024
@mathlib-bors mathlib-bors bot deleted the multiequalizer-two-universes branch October 24, 2024 12:42
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4 participants