![]() It's elegantly written, well-motivated, uses very clear notation, and overall is refreshingly clear in its exposition. It stresses the importance of representability, an understanding of which is crucial if the reader wants to go on to learn about $ 2 $-categories in the future. Understand the examples from other branches of mathematics requires some mathematical maturity (e.g., a bit of exposure to algebra and topology), but these examples aren't strictly necessary to understand the category theory even the less advanced reader should have no problem understanding the categorical content of the text. ![]() ![]() ![]() Emily Riehl's recently published book Category theory in context is a fantastic introductory text for those interested in seeing lots of examples of where category theory arises in various mathematical disciplines. ![]()
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