Index: doc/mixin.man.inc
===================================================================
diff -u -rd6e5661d520977831094caa5d2c8a5567567ecc3 -r2eb328e4d7f6cb4f21144efdb08c87742d0a44f5
--- doc/mixin.man.inc	(.../mixin.man.inc)	(revision d6e5661d520977831094caa5d2c8a5567567ecc3)
+++ doc/mixin.man.inc	(.../mixin.man.inc)	(revision 2eb328e4d7f6cb4f21144efdb08c87742d0a44f5)
@@ -20,8 +20,7 @@
 [cmd expr] when [arg obj] receives a message to determine if the mixin
 is to be considered during method dispatch or not. Guard expressions
 allow for realizing context-dependent or conditional mixin
-composition. If [arg mixinSpecList] represents an empty list, any
-existing [term "mixin class"] will be removed from [arg obj].
+composition.
 
 [def "[arg obj] [const [vset SCOPE]] [method {mixin get}]"]
 Returns the current list of [term "mixin class"]es.
@@ -32,6 +31,11 @@
 [def "[arg obj] [const [vset SCOPE]] [method {mixin delete}] [option -nocomplain] [arg specPattern]"]
 Removes a [term "mixin class"] from a current list of [term "mixin class"]es of [arg obj] whose spec matches [arg specPattern]. [arg specPattern] can contain special matching chars (see [cmd "string match"]). [const [vset SCOPE]] [method "mixin delete"] will throw an error if there is no matching [term "mixin class"], unless [option -nocomplain] is set.
 
+[def "[arg obj] [const [vset SCOPE]] [method {mixin unset}]"]
+Removes all [term "mixin class"]es from [arg obj]. This is equivalent
+to passing an empty list for [arg mixinSpecList] to 
+[const [vset SCOPE]] [method {mixin set}].
+
 [def "[arg obj] [const [vset SCOPE]] [method {mixin guard}] [arg className] [arg expr]"]
 
 Registers a guard expression [arg expr] with the [term "mixin class"] [arg className]