AddSubmonoid.isOpen_addUnits

∀ {M : Type u_1} [inst : TopologicalSpace M] [inst_1 : AddMonoid M] {U : AddSubmonoid M}, IsOpen ↑U → IsOpen ↑U.addUnits

If a submonoid is open in a topological additive monoid, then its additive units form an open subset of the additive units of the monoid.

Defined in: Mathlib.Topology.Algebra.Group.Units
Cited by: 0 results in Mathlib
Foundations: Depth 77 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: TopologicalSpace AddMonoid

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