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Theorems · Theorem · order theory

Multiset.prod_map_nonneg

∀ {R : Type u_1} [inst : CommMonoidWithZero R] [inst_1 : PartialOrder R] [ZeroLEOneClass R] [PosMulMono R]
  {α : Type u_2} {s : Multiset α} {f : α → R}, (∀ a ∈ s, 0 ≤ f a) → 0 ≤ (Multiset.map f s).prod
Defined in
Mathlib.Algebra.Order.BigOperators.GroupWithZero.Multiset
Cited by
4 results in Mathlib
Foundations
Depth 18 from the axioms · uses propext, Quot.sound
Assumes
CommMonoidWithZeroPartialOrderZeroLEOneClassPosMulMono

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