Stefan Monnier <monnier@iro.umontreal.ca> schrieb am Fr., 28. Juli 2017 um
19:50 Uhr:

> > Hmm.  I get the argument, but wouldn't that mean that only a tiny set of
> > builtins were pure?
>
> Indeed, according to that definition of pure, very few Elisp
> functions qualify.
>
> Which is why this is not exactly the definition used for pure-fns.
>
>
So what is then the actual definition? Is it in the manual?