[TYPES] Question about the polymorphic lambda calculus

Samuel E. Moelius III moelius at cis.udel.edu
Tue Jun 3 12:26:15 EDT 2008


Noam,

> I'm not sure these two questions are the same.  As stated, I'm
> reading the first question as:
>
> Question 1
>   Suppose that T is a type with exactly one free variable X.  Further
>   suppose that for every closed type U, the type T[U/X] is inhabited.
>   Then is the type (forall X.T) inhabited?

Yes, that's exactly what I meant.

But your response to the alternative question was interesting and 
appreciated, nonetheless.  :)

Sam



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