See now http://isabelle.in.tum.de/repos/isabelle/rev/0230af0f3c59.
Florian
Am 19.10.2017 um 13:56 schrieb Florian Haftmann:
> Dear all,
>
> the nowadays ancient theory Nat_Transfer (essentially providing an
> attribute to transfer ad-hoc between theorems on nat vs. int) is almost
>
I have never understood it and generally feel terror at the sight of any
transfer operation. So I would be happy to get rid of it.
Larry
> On 19 Oct 2017, at 12:56, Florian Haftmann
> wrote:
>
> My suggestion would be to remove it completely.
>
>