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When is one thing equal to some other thing? (2007) [pdf] | Hacker News Reader

When is one thing equal to some other thing? (2007) [pdf]

math.harvard.edu

34 points·aptidude187··2 comments

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What a fun, accessible and well-presented paper. I'm not sure who Saunders MacLane is but their memory is served well.

Co-founder of category theory.

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