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theorems / heine_borel

Heine–Borel theorem

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Posted about 1 month ago · proven 20 days ago

Theorem & proof · heine_borel.lean · ✓ verified
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import Mathlib

theorem heine_borel (s : Set ) : IsCompact s ↔ IsClosed s  Bornology.IsBounded s :=
  Metric.isCompact_iff_isClosed_bounded
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