Gödel's "Dialectica": Abstract and Concrete
- 👤 Speaker: Eric Faber (DPMMS)
- 📅 Date & Time: Thursday 18 February 2016, 14:00 - 15:00
- 📍 Venue: CMS, MR13
Abstract
Gödel’s “Dialectica” interpretation, published in 1958 in the eponymous journal, is an interpretation of Heyting Arithmetic in a quantifier-free theory of functionals, often called Gödel’s T. In this talk, I will contrast Gödel’s original definition with an abstract approach in category theory. Namely, it turns out that the Dialectica interpretation can be understood in terms of a monad on a certain category of fibrations. This correspondence also relates the Dialectica interpretation to other functional interpretations and type theory. However, as I will point out, the connection has some limitations and is still to be better understood.
Series This talk is part of the Junior Category Theory Seminar series.
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Eric Faber (DPMMS)
Thursday 18 February 2016, 14:00-15:00