Avsnittsöversikt
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Free groups, amalgamated free products, statement of the Seifert-Van Kampen theorem and examples.Reading: Chapter 9 (pages 233-244). Chapter 10 (pages 251-264).
For CW-complexes you only need to know their definition (pages 129-132)..Some recommended
Exercises: 9.10, 10.9.
Problems: 9-2, 9-4, 10-5, 10-6.