Proceedings of the 1993 International Workshop on the HOL theorem proving system and its applications, Vancouver. Springer LNCS 780, pp. 174-184.

**NB! This paper is superseded by a recent
Journal version
**

@INPROCEEDINGS{harrison-thery2, crossref = "hol93", author = "John Harrison and Laurent Th{\'e}ry", title = "Extending the {HOL} Theorem Prover with a Computer Algebra System to Reason about the Reals", pages = "174--184"} @PROCEEDINGS{hol93, editor = "Jeffrey J. Joyce and Carl Seger", booktitle = "Proceedings of the 1993 International Workshop on the {HOL} theorem proving system and its applications", series = "Lecture Notes in Computer Science", volume = 780, address = "UBC, Vancouver, Canada", date = "August 1993", year = 1993, publisher = "Springer-Verlag"}