Theorems · Definition · general topology

mulTSupport

{X : Type u_1} → {α : Type u_2} → [One α] → [TopologicalSpace X] → (X → α) → Set X

The topological support of a function is the closure of its support, i.e. the closure of the set of all elements where the function is not equal to 1.

Defined in

Mathlib.Topology.Algebra.Support

Cited by

41 results in Mathlib

Foundations

Depth 7 from the axioms · uses no axioms

Assumes

OneTopologicalSpace