Tietze Extension Theorem
From Conservapedia
This is an old revision of this page, as edited by Jaques (Talk | contribs) at 02:38, April 7, 2007. It may differ significantly from current revision.
The Tietze Extension Theorem states:
If A is a closed subspace in a normal space X and f : A → [p, q] is a continuous function, then there exists a continuous function F : X → [p, q] such that F|A = f.