Matemática

An introduction to impredicative ordinal notation systems

David Fernandéz-Duque
Université Paul Sabatier, Toulouse

Abstract: In this course we will give an introduction to ordinal notation systems based on collapsing cardinals in the style of Buchholz. Although familiarity with proof-theoretic ordinals is assumed, the course will work gradually, beginning with a quick review of predicative notation systems and introducing some intermediate systems along the way. The course will be divided in two sessions.

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