chore: adaptations for nightly-2026-04-27#213
Merged
Conversation
This provides a `PowIdentity K (Fintype.card K)` instance for any finite field, based on `FiniteField.pow_card` (Fermat's little theorem). This allows the `grind` ring solver to reduce high-degree polynomials over finite fields. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Adapt to leanprover/lean4#13217 which requires indented tactic sequences after `by` and `decreasing_by`. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Adapt to leanprover/lean4#13217. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Adapt proofs to lean4#13363 which replaces the transparency bump from `.reducible` to `.instances` in `whnfMatcher` with an explicit allowlist in `canUnfoldAtMatcher`. Class projections like `CategoryStruct.comp`, `CategoryStruct.id`, `Stream.next?`, `Min.min` etc. are no longer auto-unfolded in match discriminants and need explicit unfolding in proofs. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Remove `zero_zero_eq`, `one_one_eq`, `repr_zero'`, and `ofNat_unfold` which were added during the lean4#13363 adaptation but are not used in any proofs. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…-community/mathlib4-nightly-testing into lean-pr-testing-13363
Use `WalkingMulticospan.Hom.id_eq_id` and `Functor.map_id` to reduce stuck matches on `𝟙` in WalkingMulticospan naturality proofs. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…-community/mathlib4-nightly-testing into lean-pr-testing-13363
kim-em
commented
Apr 28, 2026
kim-em
commented
Apr 28, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
7 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
No description provided.