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Theorems · Theorem · group theory

SMulMemClass.smul_mem

∀ {S : Type u_1} {R : outParam (Type u_2)} {M : Type u_3} {inst : SMul R M} {inst_1 : SetLike S M}
  [self : SMulMemClass S R M] {s : S} (r : R) {m : M}, m ∈ s → r • m ∈ s

Multiplication by a scalar on an element of the set remains in the set.

Defined in
Mathlib.GroupTheory.GroupAction.SubMulAction
Cited by
55 results in Mathlib
Foundations
Depth 5 from the axioms · uses no axioms
Assumes
SMulMemClass

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