Heterogeneous specification becomes more and more important because complex systems
are often specified using multiple viewpoints, involving multiple formalisms (see Fig. 1) …

Symbolic and logic computation systems ranging from computer algebra systems to theorem
provers are finding their way into science, technology, mathematics and engineering. But …

CASL, the Common Algebraic Specification Language, was designed by the members of
CoFI, the Common Framework Initiative for algebraic specification and development, and is …

The generic proof assistant Isabelle provides a landscape of specification contexts that is
considerably richer than that of most other provers. Theories are the level of specification …

This paper describes the general concept of RouteGraphs, to be used for navigation by
various agents in a variety of scenarios. We introduce the concept of an ontology and …

Classical automated theorem proving of today is based on ingenious search techniques to
find a proof for a given theorem in very large search spaces—often in the range of several …

Proof reuse addresses the issue of how proofs of theorems in a specific setting can be used
to prove other theorems in different settings. This paper proposes an approach where …

Logic is the study of formal languages for propositions and truth. Logics are used both as a
foundation of mathematics and as specification languages in mathematics and computer …

We briefly present a software methodology for safety-critical software, developed over many
years to cope with industrial safety-critical applications in the Canadian nuclear industry …

Incremental certification and re-certification of code as it is developed and modified is a
prerequisite for applying modem, evolutionary development processes, which are especially …