I thank you again Fred for your nice explanations. I have a question for you and the categories list. The category of Lie algebras over a field is very similar to the category of groups. I wonder if every monomorphism of Lie algebras is regular? Best wishes, andré -------- Message d'origine-------- De: Fred E.J. Linton [mailto:fejlinton@usa.net] Date: dim. 24/06/2012 21:34 À: Joyal, André Cc: categories Objet : Re: categories: Re: Two_questions Correction/clarification to previous note: in what follows, the sloppy phrase
... the resulting u' is the same as the result of conjugating all the values of u by the transposition ...
should be replaced by the more accurate expanded version
... the h' (as below) resulting from u' is the same as what Sammy gets by conjugating all the values of the h that arises from u by the transposition ...
Sorry for the sloppy writing. Cheers, -- Fred [For admin and other information see: http://www.mta.ca/~cat-dist/ ]