How does one tell if something is a function?



Nevermind, found mfboundp.

--- C Y  wrote:
> What is a good way in Maxima (at the lisp level) to look at an input
> and decide whether or not it is a function?  We need to make sure
> something to be added to the finalevallist is a function, or bad
> things
> happen, but I'm not sure how to check that something is indeed a
> function.  
> 
> Thanks,
> CY
> 
> 
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