The proper way to handle this would, as you suggest, be to distinguish
different kinds on infinities. Then, perhaps, countable infinity could be
regarded as scheme:ish exact while infinities of higher cardinality would
not (since scheme's handling of that kind of numbers is an approximation
and, thus, not exact).

Den tis 28 sep. 2021 11:56Stefan Israelsson Tampe <stefan.itampe@gmail.com>
skrev:

> Then this does not work well
>
> (fold min (inf) (list 1
> 2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
> 3 4))
>
> which is a pity, we should have an exact inf as well
>
> On Tue, Sep 28, 2021 at 10:32 AM <tomas@tuxteam.de> wrote:
>
>> On Tue, Sep 28, 2021 at 10:15:30AM +0200, Stefan Israelsson Tampe wrote:
>> > Why is (min (inf) 1) = 1.0  inexact?
>>
>> Because inf's result is inexact. The same as (min 3 3.5) is inexact,
>> too.
>>
>> It seems that the `inexactness' is contagious across arithmetic
>> generics (I haven't found an explicit place in the Guile docs;
>> the racket docs are more explicit about that).
>>
>> Cheers
>>  - t
>>
>