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[Merged by Bors] - feat(category_theory/bicategory/functor): define oplax functors and their composition #11277

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This PR defines oplax functors between bicategories and their composition.


The definition of oplax_functor extends the more primitive structure prelax_functor. I have in mind to use prelax_functor in the development of free bicategories.

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@yuma-mizuno yuma-mizuno added the awaiting-review The author would like community review of the PR label Jan 6, 2022
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@jcommelin jcommelin left a comment

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LGTM, but this is the first time I've seen an oplax functor in my life.

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Thanks! I left some comments, lgtm otherwise.

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Thanks 🎉

bors merge

@leanprover-community-bot-assistant leanprover-community-bot-assistant added ready-to-merge All that is left is for bors to build and merge this PR. (Remember you need to say `bors r+`.) and removed awaiting-review The author would like community review of the PR labels Jan 11, 2022
bors bot pushed a commit that referenced this pull request Jan 11, 2022
…heir composition (#11277)

This PR defines oplax functors between bicategories and their composition.
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bors bot commented Jan 11, 2022

Pull request successfully merged into master.

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@bors bors bot changed the title feat(category_theory/bicategory/functor): define oplax functors and their composition [Merged by Bors] - feat(category_theory/bicategory/functor): define oplax functors and their composition Jan 11, 2022
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@bors bors bot deleted the bicategory-functor branch January 11, 2022 13:54
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