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Theorems · Theorem · ring theory

NonUnitalSubring.multiset_sum_mem

∀ {R : Type u_1} [inst : NonUnitalNonAssocRing R] (s : NonUnitalSubring R) (m : Multiset R),
  (∀ a ∈ m, a ∈ s) → m.sum ∈ s

Sum of a multiset of elements in a NonUnitalSubring of a NonUnitalRing is in the NonUnitalSubring.

Defined in
Mathlib.RingTheory.NonUnitalSubring.Basic
Cited by
0 results in Mathlib
Foundations
Depth 61 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
NonUnitalNonAssocRing

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