# HG changeset patch
# User Adam Chlipala <adam@chlipala.net>
# Date 1277726341 14400
# Node ID d63cb5fbdce0e5a82a9947063f1db728cafc90cf
# Parent  806420cf7a2ffcfb9bf6de5813ac07e4777111b7
A suggestion from sbriais: mention that Coq >=8.2 allows omitted match cases

diff -r 806420cf7a2f -r d63cb5fbdce0 src/MoreDep.v
--- a/src/MoreDep.v	Sat May 15 06:44:41 2010 -0400
+++ b/src/MoreDep.v	Mon Jun 28 07:59:01 2010 -0400
@@ -121,7 +121,7 @@
  
 ]]
 
-Unlike in ML, we cannot use inexhaustive pattern matching, because there is no conception of a %\texttt{%#<tt>#Match#</tt>#%}% exception to be thrown.  We might try using an [in] clause somehow.
+Unlike in ML, we cannot use inexhaustive pattern matching, because there is no conception of a %\texttt{%#<tt>#Match#</tt>#%}% exception to be thrown.  In fact, recent versions of Coq %\textit{%#<i>#do#</i>#%}% allow this, by implicit translation to a [match] that considers all constructors.  It is educational to discover that encoding ourselves directly.  We might try using an [in] clause somehow.
 
 [[
 Definition hd n (ls : ilist (S n)) : A :=