Kurt Pagani wrote:
>
> This actually solves the problem :)
> But one (possibly stupid) question: what is the meaning of the underscore
> in "_rule"?
Underscore means that identifier is no longer treated as a keyword
but is usual identifier. 'rule' without underscore is a keyword
and must be used in specific syntatic contructs (see Chapter 6.21
in FriCAS book). With underscore it is normal function name,
and calls corresponding function.
--
Waldek Hebisch
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