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[gnu-emacs] / lispref / objects.texi

diff --git a/lispref/objects.texi b/lispref/objects.texi
index 93848cffe0900df60aa24d4a0ba6ae076db0a010..5665e5beee6de5e9db8ad51dd9a302deab923fda 100644 (file)
--- a/lispref/objects.texi
+++ b/lispref/objects.texi
@@ -1779,6 +1779,12 @@ with references to further information.
 
 @item windowp
 @xref{Basic Windows, windowp}.
+
+@item booleanp
+@xref{nil and t, booleanp}.
+
+@item string-or-null-p
+@xref{Predicates for Strings, string-or-null-p}.
 @end table
 
   The most general way to check the type of an object is to call the