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I By the way, I considered the pitiful attempt to do commutative diagrams in AMS-TeX as AMS' expression of their contempt for category theory, rather than as any genunine attempt to accommodate us. Michael End forwarded msg: I don't want to tick anyone off nor for them to be ticked off, but that is a rather parochial comment. There are (a few!) other users of commutative diagrams! jim stasheff ==============================================================================