s that [vagueness] is generative, and
    therefore of keen interest in understanding the world.
    Unfortunately, a result of this disdain by logicians is
    that there is hardly a logic of vagueness, which Peirce
    slightly pointed to.  Fuzziness is  partly OK, but the
    sets are crisp.  Second order fuzziness is better, but ...

JA: Well, there is much discussation to be pondered here.
    I am still not sure if we use &quot;vaguity&quot; the same way.
    I will dig up some choice quotes from Peir