Theorems · Definition · Lie groups

Subsemiring.topologicalClosure

{R : Type u_1} →
  [inst : TopologicalSpace R] → [inst_1 : Semiring R] → [IsSemitopologicalSemiring R] → Subsemiring R → Subsemiring R

The (topological-space) closure of a subsemiring of a topological semiring is itself a subsemiring.

Defined in

Mathlib.Topology.Algebra.Ring.Basic

Cited by

6 results in Mathlib

Foundations

Depth 82 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

TopologicalSpaceSemiringIsSemitopologicalSemiring