[Maxima] eval=evil? was remvalue

[Michel Van den Bergh]

I wrote (slightly edited)
> An interesting case is give by local variables that "escape". I.e.
>
> f():=block([y],y)    (*)
>
>   

This is really interesting since

f()
properties(%)

gives the list ["sytem value"]!

I think a better way to express (*) is

f():='y

In that way there is no confusion between symbols and local variables.

(the resulting y still has the property "system value", it is not clear
to me why).

Michel