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5 votes
2 answers
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Reference request: An algebraic characterisation of LTL[XF]-definable word languages

I'm looking for a reference to the fact that LTL[XF]-definable languages (LTL where only the (strict) finally/future modality is allowed) correspond to the variety $\mathbf{R}$ (see: 1). A similar ...
Bartosz Bednarczyk's user avatar
8 votes
1 answer
459 views

What is an unambiguous language in the sense of Schützenberger?

I'm reading Thomas Wilke's survey on the connections between Temporal Logic and finite automata, finite semigroups and first-order logic. In Theorem 6 (by Kamp), the fragment $\mathrm{TL}[\mathsf{F},\...
Janoma's user avatar
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