Automating Public Announcement Logic and the Wise Men Puzzle in Isabelle/HOL

Christoph Benzmüller 🌐 and Sebastian Reiche 🌐

November 8, 2021

This is a development version of this entry. It might change over time and is not stable. Please refer to release versions for citations.


We present a shallow embedding of public announcement logic (PAL) with relativized general knowledge in HOL. We then use PAL to obtain an elegant encoding of the wise men puzzle, which we solve automatically using sledgehammer.


BSD License


Session PAL