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RE: Predicate for true lists

From: Drew Adams
Subject: RE: Predicate for true lists
Date: Mon, 4 Jun 2018 20:08:11 -0700 (PDT)

> (null (cdr (last xs))), which is
> (and list  (nthcdr (1- (safe-length xs)) xs))).

Forgot to mention that by the manual's definition of "true list",
and by this code for it, a circular list _is_ a true list.  Dunno
whether that was the intention of the OP's "true list".

(null (cdr (last #1='(2 3 #1#)))) = t

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