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POPL
2004
ACM
14 years 8 months ago
2004
ACM
We present a notion of -long ? -normal term for the typed lambda calculus with sums and prove, using Grothendieck logical relations, that every term is equivalent to one in norm...
POPL
2004
ACM
14 years 8 months ago
2004
ACM
We define seal, an untyped call-by-value -calculus with primitives for protecting abstract data by sealing, and develop a bisimulation proof method that is sound and complete with...
PODS
2007
ACM
14 years 8 months ago
2007
ACM
We show that relational algebra calculations for incomplete databases, probabilistic databases, bag semantics and whyprovenance are particular cases of the same general algorithms...
ICFP
2003
ACM
14 years 8 months ago
2003
ACM
We have verified several versions of the CPS transformation in Isabelle/HOL. In our verification we adopted first-order abstract syntax with variable names so that the formalizati...
CISIS
2009
IEEE
14 years 3 months ago
2009
IEEE
—This paper describes a new logic-based approach for representing and reasoning about metabolic networks. First it shows how biological pathways can be elegantly represented in a...