ESOP 2015
Tue 14 - Thu 16 April 2015 London, United Kingdom
Wed 15 Apr 2015 12:00 - 12:30 at Skeel - Session 4 Chair(s): Lars Birkedal

Datatypes and codatatypes are useful for specifying and reasoning about (possibly infinite) computational processes. The Isabelle/HOL proof as- sistant has recently been extended with a definitional package that supports both. We describe a complete procedure for deriving nonemptiness witnesses in the general mutually recursive, nested case—nonemptiness being a proviso for intro- ducing types in higher-order logic.