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Journal of Logic and Computation 1998 8(5):669-678; doi:10.1093/logcom/8.5.669
© 1998 by Oxford University Press
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Original Articles

On the Decidability of Continuous Time Specification Formalisms

ALEXANDER RABINOVICH

Department of Computer Science, Tel Aviv University Tel Aviv 69978, Israel E-mail: rabino{at}math.tau.ac.il

We consider an interpretation of monadic second-order logic of order in the continuous time structure of finitely variable signals and show the decidability of monadic logic in this structure. The expressive power of monadic logic is illustrated by providing a straightforward meaning preserving translation into monadic logic of three typical continuous time specification formalism: temporal logic of reals, restricted duration calculus and the propositional fragment of mean value calculus. As a by-product of the decidability of monadic logic we obtain that the above formalisms are decidable even when extended by quantifiers.

Keywords: Monadic second-order logic; temporal logic; duration calculus; decidasbility


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