The nine lemma in the S-Mal'tsev and in the S-protomodular settings

Description:  We investigate what is remaining of the nine lemma and of the denormalized nine lemma, respectively valid in a pointed protomodular and in a Mal'tsev category, in the context of partial protomodular and partial Mal'tsev categories, relatively to a class S of points. The results apply, among other structures, to monoids, semirings and quandles. Joint work with Dominique Bourn. Date:  2018-04-17 Start Time:   14:30 Speaker:  Andrea Montoli (Univ. degli Studi di Milano, Italy) Institution:  Università degli Studi di Milano, Italy Place:  Room 5.5 Research Groups: -Algebra, Logic and Topology See more:   <Main>