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» Existential rigidity and many modalities in order-sorted log...
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KBS
2011
81views more  KBS 2011»
14 years 4 months ago
Existential rigidity and many modalities in order-sorted logic
Order-sorted logic is a useful tool for knowledge representation and reasoning because it enables representation of sorted terms and formulas along with partially ordered sorts (c...
Ken Kaneiwa
102
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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
APAL
2004
91views more  APAL 2004»
14 years 9 months ago
First-order intensional logic
First-order modal logic is very much under current development, with many different semantics proposed. The use of rigid objects goes back to Saul Kripke. More recently several se...
Melvin Fitting