Start / Iowa Type Theory Commute / On the paper the girard reynolds isomorphism by philip wadler

Iowa Type Theory Commute

On the paper "The Girard-Reynolds Isomorphism" by Philip Wadler

11 min • 18 januari 2021

I give a brief glimpse at Phil Wadler's important paper "The Girard-Reynolds Isomorphism", which is quite relevant for Relational Type Theory as it shows that relational semantics for the usual type for Church-encoded natural numbers implies induction.  RelTT uses a generalization of these ideas to derive induction for any positive type family.

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