ICALP
1998
Springer
14 years 3 months ago
1998
Springer
Abstract. We study entailment of structural and nonstructural recursive subtyping constraints. Constraints are formal inequalities between type expressions, interpreted over an ord...
TACS
2001
Springer
14 years 4 months ago
2001
Springer
Decidability of non-structural subtype entailment is a long standing open problem in programming language theory. In this paper, we apply automata theoretic methods to characterize...