Building software often seems harder than it ought to be. It takes longer than expected, the
software's functionality and performance are not as wonderful as hoped, and the software is …

Partial functions play an important role in computer science. In order to reason about partial
functions one may extend classical logic to a logic supporting partial functions, a so-called …

We begin by describing the Larch approach to specification and illustrating it with a few
small examples. We then discuss LP, the Larch proof assistant, a tool that supports all the …

The Larch family of speci cation languages supports a two-tiered de nitional approach to
speci cation [Guttag, Horning, and Wing 1985a]. Each speci cation has components written …

ABEL is a language together with a formal logic for use in program development. The overall
goal has been to support specification and program development through semimechanical …

Linguistic and semantic consequences of combining the ideas of order sorted algebras (as
in OBJ) and generator induction (as in Larch) are investigated. It is found that one can gain …

This work investigates the application of formal methods to object-oriented programming.
The desirable features of such a synthesis are defined, and the problems of achieving it …

The application of an interactive theorem-proving assistant and specification support tool
called" mural" is described in the specification and verification of a small Vienna …

Building software often seems harder than it ought to be. It takes longer than expected, the
software's functionality and performance are not as wonderful as hoped, and the software is …

ABEL is a wide spectrum language developed at the University of Oslo. The applicative core
of ABEL is a typed first order language with subtypes and partial functions. The paper …