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FSTTCS
1993
Springer
13 years 9 months ago
Order Structures and Generalisations of Szpilrajn's Theorem
X;R ;R R R X X R R 1 2 1 2 1 1 2 1 2 2 1 2
Ryszard Janicki, Maciej Koutny
FSTTCS
1993
Springer
13 years 9 months ago
Higher-Order and Semantic Unification
Abstract. We provide a complete system of transformation rules for semantic unification with respect to theories defined by convergent rewrite systems. We show that this standard u...
Nachum Dershowitz, Subrata Mitra
FSTTCS
1993
Springer
13 years 9 months ago
Complexity Results for 1-safe Nets
We study the complexity of several standard problems for 1-safe Petri nets and some of its subclasses. We prove that reachability, liveness, and deadlock are all PSPACE-complete f...
Allan Cheng, Javier Esparza, Jens Palsberg