Titlebook: Lecture Notes on Elementary Topology and Geometry; I. M. Singer,J. A. Thorpe Textbook 1967 I. M. Singer and John A. Thorpe 1967 Algebraisc

舊病復發(fā)

ligature

neoplasm

Mercantile

館長

surrogate

不滿分子

MIR

More point set topology,In Chapter 1 we dealt with topological concepts where it was not particularly important whether open sets were plentiful or scarce. However, the topological spaces usually encountered in applications have plenty of open sets, almost always enough to “separate” points, and often enough to “separate” closed sets.

indoctrinate

PAD416