Notes for AKT-091020/0:37:29: Difference between revisions

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gr <math>\circ</math> fil <math>\cong</math> Id
gr <math>\circ</math> fil <math>\cong</math> (naturally equivalent) Id, but fil <math>\circ</math> gr is not.

Revision as of 22:51, 21 October 2009

gr fil (naturally equivalent) Id, but fil gr is not.