Notes on PVS from a HOL Perspective, August 1995.
Usability is improved by supporting features that aid industrial use.
Higher order logic allows variables to range over functions and predicates in addition to constants. The basic HOL theory supports reasoning with arithmetic expressions, lists and trees. HOL has been used to verify a number of systems. The basic HOL theory supports reasoning with arithmetic expressions, lists and trees. HOL has been used to verify a number of systems.