(nil and t): Clarify.

2 files changed, 10 insertions, 4 deletions

diff --git a/lispref/ChangeLog b/lispref/ChangeLog
index 1560660fc3d..020e667ec16 100644
--- a/lispref/ChangeLog
+++ b/lispref/ChangeLog
@@ -1,3 +1,9 @@
+2006-05-01  Richard Stallman  <rms@gnu.org>
+
+        * intro.texi (nil and t): Clarify.
+
+        * variables.texi (File Local Variables): Suggest using booleanp.
+
 2006-05-01  Juanma Barranquero  <lekktu@gmail.com>
 
         * objects.texi (Type Predicates): Fix typos.
diff --git a/lispref/intro.texi b/lispref/intro.texi
index 61dfca64b97..7e1b6155b35 100644
--- a/lispref/intro.texi
+++ b/lispref/intro.texi
@@ -163,7 +163,7 @@ person reading this manual, are thought of as ``the programmer'' and are
 addressed as ``you''.  ``The user'' is the person who uses Lisp
 programs, including those you write.
 
-@cindex fonts
+@cindex fonts in this manual
   Examples of Lisp code are formatted like this: @code{(list 1 2 3)}.
 Names that represent metasyntactic variables, or arguments to a function
 being described, are formatted like this: @var{first-number}.
@@ -187,14 +187,14 @@ readers.  After the Lisp reader has read either @samp{()} or @samp{nil},
 there is no way to determine which representation was actually written
 by the programmer.
 
-  In this manual, we use @code{()} when we wish to emphasize that it
-means the empty list, and we use @code{nil} when we wish to emphasize
+  In this manual, we write @code{()} when we wish to emphasize that it
+means the empty list, and we write @code{nil} when we wish to emphasize
 that it means the truth value @var{false}.  That is a good convention to use
 in Lisp programs also.
 
 @example
 (cons 'foo ())                ; @r{Emphasize the empty list}
-(not nil)                     ; @r{Emphasize the truth value @var{false}}
+(setq foo-flag nil)           ; @r{Emphasize the truth value @var{false}}
 @end example
 
 @cindex @code{t}, uses of