A Constructive Approach to Complete Spaces

Abstract

In this paper, we present a constructive generalization of metric and uniform spaces by introducing a new class of spaces, called cover spaces. These spaces form a topological concrete category with a full reflective subcategory of complete spaces. This subcategory is closely related to a particular subcategory of locales, offering an alternative approach to localic completion. Additionally, we demonstrate how this framework provides simple constructive definitions of compact spaces, uniform convergence, and limits of nets.