network weight

Last-modified: 2010-11-22 (月) 15:52:38

Definition

The network weight nw(X) of a topological space X is the least infinite cardinal c such that X has a network of size at most c.

Reference

S. Geschke, Applications of elementary submodels in general topology, Foundations of the Formal Sciences, May 7-9, 1999, p.13-20