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» Existential Fixed-Point Logic
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POPL
2004
ACM
15 years 10 months ago
Tridirectional typechecking
In prior work we introduced a pure type assignment system that encompasses a rich set of property types, including intersections, unions, and universally and existentially quantif...
Joshua Dunfield, Frank Pfenning
LMCS
2006
98views more  LMCS 2006»
14 years 10 months ago
Approximate reasoning for real-time probabilistic processes
We develop a pseudo-metric analogue of bisimulation for generalized semi-Markov processes. The kernel of this pseudo-metric corresponds to bisimulation; thus we have extended bisi...
Vineet Gupta, Radha Jagadeesan, Prakash Panangaden
CADE
2003
Springer
15 years 10 months ago
Optimizing Higher-Order Pattern Unification
Abstract. We present an abstract view of existential variables in a dependently typed lambda-calculus based on modal type theory. This allows us to justify optimizations to pattern...
Brigitte Pientka, Frank Pfenning
ICCS
2009
Springer
15 years 4 months ago
Conceptual Graph Rules and Equivalent Rules: A Synthesis
This paper is an extended abstract of the talk given at ICCS’09. Rules have long been considered as an essential component of knowledge-based systems. We focus here on conceptual...
Marie-Laure Mugnier
PLILP
1998
Springer
15 years 2 months ago
A Hidden Herbrand Theorem
: The bene ts of the object, logic or relational, functional, and constraint paradigms can be obtained from our previous combination of the object and functional paradigms in hidde...
Joseph A. Goguen, Grant Malcolm, Tom Kemp