First-Order Logic According to Harrison
Alexander Birch Jensen, Anders Schlichtkrull, Jørgen Villadsen · 2017
We present a certified declarative first-order prover with equality based on John Harrison’s Handbook of Practical Logic and Automated Reasoning, Cambridge University Press, 2009. ML code reflection is used such that the entire prover can be executed within Isabelle as a very simple interactive proof assistant. As examples we consider Pelletier’s problems 1-46.