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[Merged by Bors] - feat: multiplicative morphism properties #6698

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@joelriou joelriou commented Aug 21, 2023

This PR introduces the notion of multiplicative morphism property, i.e. contains identities and is stable under composition.


ContainsIdentities and IsMultiplicative are typeclasses because it will be useful in future developments of the localization of categories (e.g. calculus of fractions, localization of triangulated categories).

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@joelriou joelriou added t-category-theory Category theory awaiting-review The author would like community review of the PR labels Aug 21, 2023
@TwoFX TwoFX added awaiting-author A reviewer has asked the author a question or requested changes and removed awaiting-review The author would like community review of the PR labels Aug 28, 2023
joelriou and others added 2 commits August 29, 2023 10:26
Co-authored-by: Markus Himmel <markus@himmel-villmar.de>
@joelriou joelriou added awaiting-CI and removed awaiting-author A reviewer has asked the author a question or requested changes labels Aug 29, 2023
@joelriou joelriou added the awaiting-review The author would like community review of the PR label Aug 29, 2023
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Thanks!
bors r+

@leanprover-community-mathlib4-bot leanprover-community-mathlib4-bot added ready-to-merge This PR has been sent to bors. and removed awaiting-review The author would like community review of the PR labels Aug 29, 2023
bors bot pushed a commit that referenced this pull request Aug 29, 2023
This PR introduces the notion of multiplicative morphism property, i.e. contains identities and is stable under composition.



Co-authored-by: Joël Riou <37772949+joelriou@users.noreply.github.com>
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bors bot commented Aug 29, 2023

Pull request successfully merged into master.

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@bors bors bot changed the title feat: multiplicative morphism properties [Merged by Bors] - feat: multiplicative morphism properties Aug 29, 2023
@bors bors bot closed this Aug 29, 2023
@bors bors bot deleted the morphism-property-ismultiplicative branch August 29, 2023 15:49
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3 participants