NNRat.cast_prod

∀ {α : Type u_1} {K : Type u_2} [inst : Semifield K] [CharZero K] (s : Finset α) (f : α → ℚ≥0),
  ↑(∏ a ∈ s, f a) = ∏ a ∈ s, ↑(f a)

Defined in: Mathlib.Data.NNRat.BigOperators
Cited by: 1 results in Mathlib
Foundations: Depth 93 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: Semifield CharZero

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