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Re: Checking if all values of a list are true


From: David Kastrup
Subject: Re: Checking if all values of a list are true
Date: Fri, 11 Jul 2008 18:38:59 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux)

Nordlöw <address@hidden> writes:

> How do I check if all values of a list are true?
>
> This is my attempt:
> (reduce 'and '(t t))
>
> but I get the error: and (invalid-function and)
>
> (functionp 'and)
>
> gives true so why on earth doesn't this work?

Special form.  Try

(not (memq nil '(t t)))

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum


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