On Fri, Jan 18, 2013 at 12:58 PM, Bill Richter <
rich...@math.northwestern.edu> wrote:

> Thanks, Ramana!  I think I wasn't clear.  As Rob explained, there's a type
> quantification problem: we can't define Fibration p E B.


I think I was just trying to explain why you can't define it (without type
quantification).


> Any time you wish to write Fibration p E B, you must write instead
> !M:A->bool. HLP p E B M.


Though you'll have to be careful when writing that if the type variable A
is already in your context.


>  With that in mind, I don't understand your objection
>
>    It's not just an annoyance.  Suppose the assumption you have to
>    drag around was instead the definition of Fibration.
>
> --
> Best,
> Bill
>
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