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| author | David Kastrup <dak@gnu.org> | 2011-10-28 17:52:42 +0200 |
|---|---|---|
| committer | David Kastrup <dak@gnu.org> | 2014-08-27 22:54:55 +0200 |
| commit | 3eb00210e96180234b4459d797a411148d954374 (patch) | |
| tree | 44c82c6e41b55ee69c3d6b9ecb3347062b05beec | |
| parent | 48678617b169957433c562612151f2a71be50b59 (diff) | |
Issue 4071: scheme-tutorial.itely: missing closing paren
But it turns out that the "formal" definition of a list given there is
unsuitable for determining the list status of circular lists because the
definition, well, turns out to be circular.
| -rw-r--r-- | Documentation/extending/scheme-tutorial.itely | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/extending/scheme-tutorial.itely b/Documentation/extending/scheme-tutorial.itely index 7503306b1f..fc2eba1c6d 100644 --- a/Documentation/extending/scheme-tutorial.itely +++ b/Documentation/extending/scheme-tutorial.itely @@ -275,9 +275,10 @@ Abelson, see @node Lists @unnumberedsubsubsec Lists -A very common Scheme data structure is the @emph{list}. Formally, a -list is defined as either the empty list (represented as @code{'()}, -or a pair whose @code{cdr} is a list. +A very common Scheme data structure is the @emph{list}. Formally, +a @q{proper} list is defined to be either the empty list with its +input form @code{'()} and length@tie{}0, or a pair whose +@code{cdr} in turn is a shorter list. There are many ways of creating lists. Perhaps the most common is with the @code{list} procedure: |