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Theorems · Theorem · order theory

Finset.prod_lt_prod_of_nonempty

∀ {ι : Type u_1} {R : Type u_2} [inst : CommMonoidWithZero R] [inst_1 : PartialOrder R] [ZeroLEOneClass R]
  [PosMulStrictMono R] [Nontrivial R] {f g : ι → R} {s : Finset ι},
  (∀ i ∈ s, 0 < f i) → (∀ i ∈ s, f i < g i) → s.Nonempty → ∏ i ∈ s, f i < ∏ i ∈ s, g i
Defined in
Mathlib.Algebra.Order.BigOperators.GroupWithZero.Finset
Cited by
2 results in Mathlib
Foundations
Depth 62 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CommMonoidWithZeroPartialOrderZeroLEOneClassPosMulStrictMonoNontrivial

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