Logic, Set Theory and Topology Ical Atom

The seminar meets on Tuesdays, 12:15-13:40, in Math -101

2014–15–B meetings

Date
Title
Speaker
Abstract
Mar 10 Infinite time machines Philipp Schlicht (Bonn)
Mar 24, In Math 201 Coloring classes and the Hanf number for amalgamation Chris Lambie-Hanson (HUJI)
Apr 14 Topological dynamics and Borel cardinalities in model theory Krzysztof Krupiński (UWr)
Apr 21 On weakly o-minimal structures and o-minimal traces. Assaf Hasson (BGU)
Apr 28 Nonmeasurable subgroups of compact groups Sidney Morris (FedUni)
May 5 Intuitionistic logic Nili Vilkin (BGU)
May 12, In 90/138 Nonhomogeneity of remainders Jan van Mill (UvA)
May 19 Nonhomogeneity of remainders Jan van Mill (UvA)
May 26 Identical inclusions of semilattices Grigory Mashevitsky (BGU)
Jun 9 The Suslin hypothesis Inbar Marom (BGU)

Suslin hypothesis states that every totally ordered set that has no uncountable collection of disjoint open intervals, can be (order) embedded into the real line. I will show that in L (the Constructible universe) the negation of this hypothesis holds, by building a Suslin tree from the diamond principle, and contradict the hypothesis from the existence of Suslin tree.
Jun 16 TBA Taylor Dupuy (HUJI)
Jun 23 TBA TBA (HUJI)