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Modal logic for topologists

Prelegent(ci)
Jan van Mill
Afiliacja
University of Amsterdam
Termin
25 listopada 2020 16:15
Informacje na temat wydarzenia
Zoom
Seminarium
Seminarium „Topologia i teoria mnogości”

We sketch the proof of the following result: the existence of a normal space whose modal logic coincides with the modal logic of the Kripke frame isomorphic to the power set of a two element set is equivalent to the existence of a measurable cardinal. Whether normal in this result can be weakened to Tychonoff, is an open problem.