Set.exists_eq_chainHeight_of_chainHeight_ne_top

∀ {α : Type u_1} (s : Set α) (r : α → α → Prop), s.chainHeight r ≠ ⊤ → ∃ t ⊆ s, t.encard = s.chainHeight r ∧ IsChain r t

Defined in: Mathlib.Order.Height
Cited by: 1 results in Mathlib
Foundations: Depth 92 from the axioms · uses propext, Classical.choice, Quot.sound

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