Categories Work (M2 - Working Group on Mac Lane's 'Categories for the working mathematician')

Lecture 1: Basics

\newcommand\yoneda{ {\bf y}} \newcommand\oppositeName{ {\rm op}} \newcommand\opposite[1]{ {#1}^\oppositeName} \newcommand\id[1][{}]{ {\rm id}_{#1}} \newcomma...