The proof checker actually provides several powerful commands for the advanced user that make it possible to verify large classes of theorems using...

The proof checker actually provides several powerful commands for the advanced user that make it possible to verify large classes of theorems using only a small number of steps. For example, the grind command is usually a good way to complete a proof that only requires de nition expansion, and arithmetic, equality, and quanti er reasoning. Since it does simpli cation, automatic rewriting, and records the sequent formulas in the decision procedure database. The inst?