Finset.exists_ne_one_of_prod_ne_one

∀ {ι : Type u_1} {M : Type u_4} {s : Finset ι} [inst : CommMonoid M] {f : ι → M}, ∏ x ∈ s, f x ≠ 1 → ∃ a ∈ s, f a ≠ 1

Defined in: Mathlib.Algebra.BigOperators.Group.Finset.Basic
Cited by: 1 results in Mathlib
Foundations: Depth 57 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: CommMonoid

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