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[Merged by Bors] - feat(Analysis/Normed/Module/WeakDual): register bornology and boundedness API #36332

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[Merged by Bors] - feat(Analysis/Normed/Module/WeakDual): register bornology and boundedness API #36332

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Register bornology
mike1729 Mar 7, 2026
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isVonNBounded_iff_pointwise_bounded
mike1729 Mar 7, 2026
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Improve flow
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Docstrings
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Module docstrings
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Move var declaration
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Missing commetns
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Use seminorm family and remove unecessary results.
mike1729 Mar 18, 2026
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Merge branch 'master' into bornology-weakdual
mike1729 Mar 18, 2026
528027c
Fix users of isCompact_closedBall.
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docstrings
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2 changes: 1 addition & 1 deletion Mathlib/Analysis/Normed/Algebra/Basic.lean
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Expand Up @@ -62,7 +62,7 @@ instance [ProperSpace 𝕜] : CompactSpace (characterSpace 𝕜 A) := by
intro φ hφ
rw [Set.mem_preimage, mem_closedBall_zero_iff]
exact (norm_le_norm_one ⟨φ, ⟨hφ.1, hφ.2⟩⟩ :)
exact (isCompact_closedBall 𝕜 0 _).of_isClosed_subset CharacterSpace.isClosed h
exact (isCompact_closedBall 0 _).of_isClosed_subset CharacterSpace.isClosed h

end CharacterSpace

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