Chapter 3: Connected and compact spaces

Online text: www.math.ucla.edu/~sharifi/notes/topology-ch03.html

Cited passages: Romyar Sharifi, Point-Set Topology, Corollary 3.1.10, Proposition 3.1.11, Definition 3.1.12 and Remark 3.1.16: maximal connected subsets and equivalence classes; Romyar Sharifi, Point-Set Topology, Definition 3.1.1 and Example 3.1.3: connectedness and discrete spaces; Romyar Sharifi, Point-Set Topology, Lemma 3.1.13 and Example 3.1.14: closed components and a component which is not open.