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[Merged by Bors] - feat(Topology/KrullDimension): add invariance under homeomorphism theorem and auxiliary lemmas #17175
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PR summary 60ac3c0c39Import changes for modified filesNo significant changes to the import graph Import changes for all files
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maintainer merge
🚀 Pull request has been placed on the maintainer queue by jcommelin. |
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Thanks!
bors d+
Mathlib/Data/Set/Image.lean
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@@ -1090,6 +1090,10 @@ theorem Injective.image_injective (hf : Injective f) : Injective (image f) := by | |||
intro s t h | |||
rw [← preimage_image_eq s hf, ← preimage_image_eq t hf, h] | |||
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lemma Injective.image_strictMono {X Y : Type*} |
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I guess there is an f
already in scope here.
✌️ Raph-DG can now approve this pull request. To approve and merge a pull request, simply reply with |
Thanks for the reviews! bors r+ |
…orem and auxiliary lemmas (#17175) Added some lemmas about the topological Krull dimension
Pull request successfully merged into master. Build succeeded: |
…orem and auxiliary lemmas (#17175) Added some lemmas about the topological Krull dimension
Added some lemmas about the topological Krull dimension