Part I
A Geometric Introduction to Topology
[466/100%]Chapter 1Basic point set topology[153/100%]
Section 1.1Topology in [2/100%]
Section 1.4Compactness[7/100%]
Section 1.6Connectedness[11/100%]
Section 1.7Quotient spaces[10/100%]
Section 1.9Supplementary exercises[97/100%]
Chapter 2The classification of surfaces[170/100%]
Section 2.4Orientation[6/100%]
Section 2.5Connected sums[11/100%]
Section 2.9Supplementary exercises[109/100%]
Section 3.2The fundamental group[3/100%]
Section 3.4Applications to surfaces[10/100%]
Section 3.7Vector fields on surfaces[13/100%]
Section 3.8Homotopy equivalences and [8/100%]
Section 3.11Supplementary exercises[60/100%]