Mechanizing a ?-calculus equivalence in HOL.- Non-primitive recursive function definitions.- Experiments with ZF set theory in HOL and Isabelle.- Automatically synthesized term denotation predicates: A proof aid.- On the refinement of symmetric memory protocols.- Combining decision procedures in the HOL system.- Deciding cryptographic protocol adequacy with HOL.- A practical method for reasoning about distributed systems in a theorem prover.- A theory of finite maps.- Virtual theories.- An automata theory dedicated towards formal circuit synthesis.- Interfacing HOL90 with a functional database query language.- Floating point verification in HOL.- Inductive definitions: Automation and application.- A formulation of TLA in Isabelle.- Formal verification of serial pipeline multipliers.- TkWinHOL: A tool for Window Inference in HOL.- Formal verification of counterflow pipeline architecture.- Deep embedding VHDL.- HOLCF: Higher order logic of computable functions.- A mechanized logic for secure key escrow protocol verification.- A new interface for HOL - Ideas, issues and implementation.- Very efficient conversions.- Recording and checking HOL proofs.- Formalization of planar graphs.- A hierarchical method for reasoning about distributed programming languages.