When is one thing equal to some other thing? (2007) [pdf] (math.harvard.edu) 34 points by aptidude187 7y ago ↗ HN
[–] johnday 7y ago ↗ What a fun, accessible and well-presented paper. I'm not sure who Saunders MacLane is but their memory is served well. [–] adamnemecek 7y ago ↗ Co-founder of category theory.
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