Sym.card_sym_eq_multichoose

∀ (α : Type u_2) (k : ℕ) [inst : Fintype α] [inst_1 : Fintype (Sym α k)],
  Fintype.card (Sym α k) = (Fintype.card α).multichoose k

For any fintype α of cardinality n, card (Sym α k) = multichoose (card α) k.

Defined in: Mathlib.Data.Sym.Card
Cited by: 3 results in Mathlib
Foundations: Depth 83 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: Fintype Fintype

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