[Merged by Bors] - feat(Topology/Path): add theorem about casting with rfl#28185
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Sebi-Kumar wants to merge 1 commit intoleanprover-community:masterfrom
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[Merged by Bors] - feat(Topology/Path): add theorem about casting with rfl#28185Sebi-Kumar wants to merge 1 commit intoleanprover-community:masterfrom
Sebi-Kumar wants to merge 1 commit intoleanprover-community:masterfrom
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PR summary a5b4f3bc80Import changes for modified filesNo significant changes to the import graph Import changes for all files
Declarations diff
You can run this locally as follows## summary with just the declaration names:
./scripts/declarations_diff.sh <optional_commit>
## more verbose report:
./scripts/declarations_diff.sh long <optional_commit>The doc-module for No changes to technical debt.You can run this locally as
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Sure, seems reasonable, but I can't think off the top of my head when it might come up. bors merge |
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Prove the trivial result `p.cast rfl rfl = p` for a path `p`, which serves as a useful result for the simplifier to know. Suggested by Aaron Liu at the discussion [#Is there code for X? > Dealing with `Path.cast`](https://leanprover.zulipchat.com/#narrow/channel/217875-Is-there-code-for-X.3F/topic/Dealing.20with.20.60Path.2Ecast.60).
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Pull request successfully merged into master. Build succeeded: |
Paul-Lez
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Aug 23, 2025
…ommunity#28185) Prove the trivial result `p.cast rfl rfl = p` for a path `p`, which serves as a useful result for the simplifier to know. Suggested by Aaron Liu at the discussion [#Is there code for X? > Dealing with &leanprover-community#96;Path.cast&leanprover-community#96;](https://leanprover.zulipchat.com/#narrow/channel/217875-Is-there-code-for-X.3F/topic/Dealing.20with.20.60Path.2Ecast.60).
pechersky
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Aug 25, 2025
…ommunity#28185) Prove the trivial result `p.cast rfl rfl = p` for a path `p`, which serves as a useful result for the simplifier to know. Suggested by Aaron Liu at the discussion [#Is there code for X? > Dealing with &leanprover-community#96;Path.cast&leanprover-community#96;](https://leanprover.zulipchat.com/#narrow/channel/217875-Is-there-code-for-X.3F/topic/Dealing.20with.20.60Path.2Ecast.60).
FormulaRabbit81
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Aug 30, 2025
…ommunity#28185) Prove the trivial result `p.cast rfl rfl = p` for a path `p`, which serves as a useful result for the simplifier to know. Suggested by Aaron Liu at the discussion [#Is there code for X? > Dealing with &leanprover-community#96;Path.cast&leanprover-community#96;](https://leanprover.zulipchat.com/#narrow/channel/217875-Is-there-code-for-X.3F/topic/Dealing.20with.20.60Path.2Ecast.60).
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Prove the trivial result
p.cast rfl rfl = pfor a pathp, which serves as a useful result for the simplifier to know. Suggested by Aaron Liu at the discussion #Is there code for X? > Dealing with `Path.cast`.To provide additional context, I am relatively new when it comes to contributing to Mathlib, and I am doing so as a part of the Fields Undergraduate Summer Research Program hosted at the University of Western Ontario under the supervision of Chris Kapulkin and Daniel Carranza. My goal is to contribute that the
n-sphere is simply connected forn > 1.