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cs.LO2008★ 7 cited
Two Forms of One Useful Logic: Existential Fixed Point Logic and Liberal Datalog
Andreas Blass, Yuri Gurevich
A natural liberalization of Datalog is used in the Distributed Knowledge Authorization Language (DKAL). We show that the expressive power of this liberal Datalog is that of existen…
cs.LO2008
One useful logic that defines its own truth
Andreas Blass, Yuri Gurevich
Existential fixed point logic (EFPL) is a natural fit for some applications, and the purpose of this talk is to attract attention to EFPL. The logic is also interesting in its own…