[isabelle-dev] Abbreviations + Monad_Syntax introduce "unit itself" additional type variable

[Makarius]

On Sun, 13 Oct 2013, Florian Haftmann wrote:

>>> Here a bisect would be helpful when this came to happen
>>> actually (or is it already present in Isabelle2013).
>>
>> This one already goes wrong in Isabelle2013.
>
> OK.  I guess it is some variant of the ever recurring problem of »hidden
> polymorphism«.  Will take some time to figure out actually.

I've lost track of this thread.

For me the question right now: Is there anything left to do for 
Isabelle2013-1?


 	Makarius