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[Merged by Bors] - refactor(order/hom/complete_lattice): Fix the definition of frame_hom #12855

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I misread "preserves finite meet" as "preserves binary meet", meaning that currently a frame_hom does not have to preserve (subtly, preserving arbitrary join does not imply that either). This fixes my mistake.


I had to change the extension path for complete_lattice_hom because two instances were not defeq (but they were defeq after ext). See Zulip

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@YaelDillies YaelDillies added the awaiting-review The author would like community review of the PR label Mar 21, 2022
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bors d+

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bors bot commented Mar 22, 2022

✌️ YaelDillies can now approve this pull request. To approve and merge a pull request, simply reply with bors r+. More detailed instructions are available here.

@leanprover-community-bot-assistant leanprover-community-bot-assistant added delegated The PR author may merge after reviewing final suggestions. and removed awaiting-review The author would like community review of the PR labels Mar 22, 2022
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bors merge

bors bot pushed a commit that referenced this pull request Mar 22, 2022
…m` (#12855)

I misread "preserves finite meet" as "preserves binary meet", meaning that currently a `frame_hom` does not have to preserve `⊤` (subtly, preserving arbitrary join does not imply that either). This fixes my mistake.
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bors bot commented Mar 22, 2022

Pull request successfully merged into master.

Build succeeded:

@bors bors bot changed the title refactor(order/hom/complete_lattice): Fix the definition of frame_hom [Merged by Bors] - refactor(order/hom/complete_lattice): Fix the definition of frame_hom Mar 22, 2022
@bors bors bot closed this Mar 22, 2022
@bors bors bot deleted the fix_frame_hom branch March 22, 2022 19:32
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