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From: mdixon@thelonius.PARC.xerox.com (Mike Dixon)
Newsgroups: comp.sys.next
Subject: Re: LISP
Message-ID: <MDIXON.89Nov14165943@thelonius.PARC.xerox.com>
Date: 15 Nov 89 00:59:43 GMT
References: <246300066@uxa.cso.uiuc.edu>
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In-reply-to: jpd00964@uxa.cso.uiuc.edu's message of 14 Nov 89 10:43:53 GMT

the first book you want is "Common Lisp the Language".  according to it,

"functionp returns true for any object that is
    a symbol,
    a list whose car is lambda,
    returned by the function special form, or
    returned by compile with a nil first argument.

Note that functionp returns true when its argument is a symbol even
if that symbol does not have a function binding (either lexical or
dynamic)."

as far as i can tell it does just that.  when you say it returns true
for "just about everything", did you just mean all symbols?
                                             .mike.