TwoSidedIdeal.finsetSum_mem

∀ {R : Type u_1} [inst : NonUnitalNonAssocRing R] (I : TwoSidedIdeal R) {ι : Type u_2} (s : Finset ι) (f : ι → R),
  (∀ x ∈ s, f x ∈ I) → s.sum f ∈ I

Defined in: Mathlib.RingTheory.TwoSidedIdeal.BigOperators
Cited by: 2 results in Mathlib
Foundations: Depth 56 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: NonUnitalNonAssocRing

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