Abstract. We have argued previously that the e ectiveness of a veri cation system derives not only from the power of its individual features for expression and deduction, but from ...
Abstract. This paper presents a formalization of nite and in nite sequences in domain theory carried out in the theorem prover Isabelle. The results are used to model the metatheor...
Relational languages such as Ruby are used to derive circuits from abstract speci cations of their behaviour. Much reasoning is done informally in Ruby using pictorial representat...
Abstract. This paper presents a novel extension to abductive reasoning in causal nets, namely the use of domain knowledge to select among alternative diagnoses. We describe how pre...
Constructive negation has been proved to be a valid alternative to negation as failure, especially when negation is required to have, in a sense, an `active' role. In this pa...