* doc/lispref/lists.texi (Sets And Lists): Mention cl provides union etc.

diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index 198eb1c8ed2b402f4ee371919825a3560a9b2a2e..7d1ce7bff800d7ac165948bc1d031fbb25aec8af 100644 (file)
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -1,3 +1,7 @@
+2011-05-19  Glenn Morris  <rgm@gnu.org>
+
+       * lists.texi (Sets And Lists): Mention cl provides union etc.
+
 2011-05-19  Nix  <nix@esperi.org.uk>
 
        * windows.texi (Displaying Buffers): pop-to-buffer is not a command.

diff --git a/doc/lispref/lists.texi b/doc/lispref/lists.texi
index fa3fac814c1041d366733e366747c7a889c26170..40a974cf40783236f6570834f1364b84881d1034 100644 (file)
--- a/doc/lispref/lists.texi
+++ b/doc/lispref/lists.texi
@@ -1266,9 +1266,9 @@ functions for sets include @code{memq} and @code{delq}, and their
 @cindex CL note---lack @code{union}, @code{intersection}
 @quotation
 @b{Common Lisp note:} Common Lisp has functions @code{union} (which
-avoids duplicate elements) and @code{intersection} for set operations,
-but GNU Emacs Lisp does not have them.  You can write them in Lisp if
-you wish.
+avoids duplicate elements) and @code{intersection} for set operations.
+Although standard GNU Emacs Lisp does not have them,  the @file{cl}
+library provides versions.  @inforef{Top, Overview, cl}.
 @end quotation
 
 @defun memq object list