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[Merged by Bors] - feat(set_theory/zfc/basic): more basic simp/ext lemmas #18233

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@vihdzp vihdzp commented Jan 19, 2023

We prove class extensionality, the characterization of class unions, and other very simple results.


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@vihdzp vihdzp added the awaiting-review The author would like community review of the PR label Jan 19, 2023
@vihdzp vihdzp changed the title feat(set_theory/zfc/basic): more basic simp lemmas feat(set_theory/zfc/basic): more basic simp/ext lemmas Jan 19, 2023
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Thanks!

maintainer merge

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

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Thanks!

bors merge

@github-actions github-actions bot 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 25, 2023
bors bot pushed a commit that referenced this pull request Jan 25, 2023
We prove class extensionality, the characterization of class unions, and other very simple results.
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bors bot commented Jan 25, 2023

Pull request successfully merged into master.

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@bors bors bot changed the title feat(set_theory/zfc/basic): more basic simp/ext lemmas [Merged by Bors] - feat(set_theory/zfc/basic): more basic simp/ext lemmas Jan 25, 2023
@bors bors bot closed this Jan 25, 2023
@bors bors bot deleted the Class_mem_sUnion branch January 25, 2023 15:17
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4 participants