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A Robust Class of Data Languages and an Application to Learning

Benedikt Bollig ; Peter Habermehl ; Martin Leucker ; Benjamin Monmege.

We introduce session automata, an automata model to process data words, i.e., words over an infinite alphabet. Session automata support the notion of fresh data values, which are well suited for modeling protocols in which sessions using fresh values are of major interest, like in security protocols&nbsp;[&hellip;]

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Propositional Dynamic Logic for Message-Passing Systems

Benedikt Bollig ; Dietrich Kuske ; Ingmar Meinecke.

We examine a bidirectional propositional dynamic logic (PDL) for finite and infinite message sequence charts (MSCs) extending LTL and TLC-. By this kind of multi-modal logic we can express properties both in the entire future and in the past of an event. Path expressions strengthen the classical&nbsp;[&hellip;]

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