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Re: no empty (zero) string predicate in Elisp


From: Emanuel Berg
Subject: Re: no empty (zero) string predicate in Elisp
Date: Sun, 26 Apr 2015 21:06:28 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux)

Marcin Borkowski <address@hidden> writes:

>> "Predicate" is a word from the grammars of human
>> languages, but I don't know its exact meaning,
>> neither there or in programming languages (until
>> now as for programming).
>
> AFAIK, "predicate" is a word from /logic/, and it
> means (more or less) a function which consumes one
> or more arguments of any type and gives back
> a truth-value.

Doesn't all functions in logic do that?

-- 
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http://user.it.uu.se/~embe8573


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