The Expressiveness of Metric Temporal Logic II: This time it's irrational!
In the first installment of "The Expressiveness of Metric Temporal Logic"  we saw how Metric Temporal Logic (MTL) - an extension of Linear Temporal Logic with timing constraints on the modal operators - has the same expressive power as first order logic when the timing constants are rational. In this talk we consider the case when irrational constants can be used. We give a very succinct characterization of precisely when MTL and FO have the same expressive power which neatly generalizes several results in the area.
 For those that did not see the first talk there will be a brief recap of the results at the start of this talk.