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From: ark@alice.UucP (Andrew Koenig)
Newsgroups: net.lang.apl
Subject: Re: APL structure
Message-ID: <5581@alice.uUCp>
Date: Tue, 3-Jun-86 10:37:07 EDT
Article-I.D.: alice.5581
Posted: Tue Jun  3 10:37:07 1986
Date-Received: Thu, 5-Jun-86 07:04:53 EDT
References: <408@water.UUCP>
Organization: Bell Labs, Murray Hill
Lines: 8

> For the second form, there are two possibilities, depending on the value of
> the condition.  If "cond" is true, the value of the result
> is the value of "expr_f".  Otherwise it is the value of "expr_f".

Incidentally, I've never seen a clear definition of the meaning
of "true" in this context.  When I implemented a direct definition
function, I decided that "true" meant "has no zero elements."
This means that the null vector is "true."