Logic & Set Theory Philip Welch: Small algebras on small cardinals
9 February 2016, 2.30 PM - 9 February 2016, 4.30 PM
Howard House 4th Floor Seminar Room
Looking at subalgebras of an algebra, on say aleph_omega, that are of yet smaller cardinality, but yet meet certain stationary subsets of the aleph_n, can require strong axioms of infinity. We survey the world of such structures that lie in some sense between Jonsson and Chang algebras.