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Logical Methods in Computer Science Vol. 3 (3:?) 2007, pp. 1--22
 

Summary: Logical Methods in Computer Science
Vol. 3 (3:?) 2007, pp. 1--22
www.lmcs­online.org
Submitted Now. 24, 2006
Published Jul. , 2007
A FINITE SEMANTICS OF SIMPLY-TYPED LAMBDA TERMS
FOR INFINITE RUNS OF AUTOMATA
KLAUS AEHLIG
Department of Computer Science, University of Wales Swansea, Swansea SA2 8PP, United King-
dom
e-mail address: k.t.aehlig@swan.ac.uk
Abstract. Model checking properties are often described by means of nite automata.
Any particular such automaton divides the set of in nite trees into nitely many classes,
according to which state has an in nite run. Building the full type hierarchy upon this
interpretation of the base type gives a nite semantics for simply-typed lambda-trees.
A calculus based on this semantics is proven sound and complete. In particular, for
regular in nite lambda-trees it is decidable whether a given automaton has a run or not.
As regular lambda-trees are precisely recursion schemes, this decidability result holds for
arbitrary recursion schemes of arbitrary level, without any syntactical restriction.
1. Introduction and Related Work

  

Source: Aehlig, Klaus T. - Institut für Informatik, Ludwig-Maximilians-Universität München

 

Collections: Mathematics; Computer Technologies and Information Sciences