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feat: clarify warning for semireducible definitions of class type#14196

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datokrat:paul/instance-reducibility-warning
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feat: clarify warning for semireducible definitions of class type#14196
datokrat wants to merge 2 commits into
leanprover:masterfrom
datokrat:paul/instance-reducibility-warning

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@datokrat

@datokrat datokrat commented Jun 26, 2026

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This PR improves on the warning showing for semireducible definitions of class type. Partially addresses #13351.

@github-actions github-actions Bot added toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN mathlib4-nightly-available A branch for this PR exists at leanprover-community/mathlib4-nightly-testing:lean-pr-testing-NNNN labels Jun 26, 2026
@leanprover-bot leanprover-bot added the builds-manual CI has verified that the Lean Language Reference builds against this PR label Jun 26, 2026
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leanprover-bot commented Jun 26, 2026

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Reference manual CI status:

mathlib-nightly-testing Bot pushed a commit to leanprover-community/batteries that referenced this pull request Jun 26, 2026
mathlib-nightly-testing Bot pushed a commit to leanprover-community/mathlib4-nightly-testing that referenced this pull request Jun 26, 2026
leanprover-bot added a commit to leanprover/reference-manual that referenced this pull request Jun 26, 2026
@mathlib-lean-pr-testing mathlib-lean-pr-testing Bot added the builds-mathlib CI has verified that Mathlib builds against this PR label Jun 26, 2026
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builds-manual CI has verified that the Lean Language Reference builds against this PR builds-mathlib CI has verified that Mathlib builds against this PR mathlib4-nightly-available A branch for this PR exists at leanprover-community/mathlib4-nightly-testing:lean-pr-testing-NNNN toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN

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