Category Theory by Steven Roman

Math Online Tom Circle

Excellent Category Theory lectures by retired Prof Steven Roman  from Uni. California: he used pen and A4 – paper with iPhone camera. Simple & good. (Only lighting could be brighter.)

Category Theory is one level higher abstraction, above the Abstract Algebra (Group, Ring, Field, Vector Space, Set…). It is the “Math of Math”, to make difficult math easy by studying the ‘relationship’ (or Morphism).

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