Parametric types and virtual types have recently been proposed as extensions to Java to support genericity. In this paper we investigate the strengths and weaknesses of each. We su...
Abstract. We present a constraint system OF of feature trees that is appropriate to specify and implement type inference for first-class messages. OF extends traditional systems of...
At the last workshop, the issue of being able to extend protected types in the same manner as tagged types was discussed. The conclusion was that further consideration was needed ...
We observe that every rst-order logic formula over the untyped version of some many-sorted vocabulary is equivalent to a union of manysorted formulas over that vocabulary. This re...