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Theorems · Theorem · combinatorics

Finsupp.multinomial_update

∀ {α : Type u_1} (a : α) (f : α →₀ ℕ), f.multinomial = (f.sum fun x => id).choose (f a) * (f.update a 0).multinomial
Defined in
Mathlib.Data.Nat.Choose.Multinomial
Cited by
2 results in Mathlib
Foundations
Depth 66 from the axioms · uses propext, Classical.choice, Quot.sound

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