1. Robert S. Boyer, David M. Goldschlag, Matt Kaufmann, and J Strother Moore. Functional Instantiation in First-Order Logic. Technical Report 44, Computational Logic, Inc., Austin, Texas. Extended version of this chapter.
2. A Computational Logic Handbook;Boyer,1988
3. An Informal Introduction to Specification Using Clear;Burstall,1981
4. Mechanizing Unity;Goldschlag,1990
5. Recursive Number Theory;Goodstein,1964