Nat.count_lt_card

∀ {p : ℕ → Prop} [inst : DecidablePred p] {n : ℕ} (hp : (Set.ofPred p).Finite), p n → Nat.count p n < hp.toFinset.card

Defined in: Mathlib.Data.Nat.Count
Cited by: 1 results in Mathlib
Foundations: Depth 69 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: DecidablePred

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