Chasing Categories
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I will give a glimpse of the broad subject of Homological Algebra through some famous diagram lemmas, called the FiveLemma, the NineLemma and the SnakeLemma. We will prove one of these by “diagram chasing”, which is fun and involves lots of colours. I will also introduce Category Theory by giving some definitions and examples, and then we will see how we can make these diagram lemmas hold in a more general context.
This talk is part of the The Archimedeans (CU Mathematical Society) series.
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