Chapter 1: Rings and Ideals (cont.) -- Woo Chang Chung
Introduction to Category Theory -- Stephen Fitz

Woo Chang Chung will discuss extension and contraction, which concludes the first chapter of Introduction to Commutative Algebra.

Following Woo's talk, Stephen Fitz will give us an introduction to Category Theory.
Stephen may cover the following topics:
- Categories (with some related terminology, classification and basic theory)
- Functors
- Natural transformations
- Yoneda lemma
- Abstract structures
- Diagrams, limits and colimits, universal properties
- R-modules
- Enriched categories