Indication de quel type de constantes est dépliable dans "simpl" (cf

message de Benjamin Pierce de sep 2007 sur coq-club) [report de la
révision 10128 de la 8.1 vers le trunk]



git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10129 85f007b7-540e-0410-9357-904b9bb8a0f7

1 files changed, 6 insertions, 1 deletions

diff --git a/doc/refman/RefMan-tac.tex b/doc/refman/RefMan-tac.tex
index 864a004fe..90b3d1b2e 100644
--- a/doc/refman/RefMan-tac.tex
+++ b/doc/refman/RefMan-tac.tex
@@ -953,7 +953,12 @@ $\beta\iota$-reduction rule.  Then it expands transparent constants
 and tries to reduce {\tt T'} according, once more, to $\beta\iota$
 rules. But when the $\iota$ rule is not applicable then possible
 $\delta$-reductions are not applied.  For instance trying to use {\tt
-  simpl} on {\tt (plus n O)=n} does change nothing.
+simpl} on {\tt (plus n O)=n} does change nothing.  Notice that only
+transparent constants whose name can be reused as such in the
+recursive calls are possibly unfolded. For instance a constant defined
+by {\tt plus' := plus} is possibly unfolded and reused in the
+recursive calls, but a constant such as {\tt succ := plus (S O)} is
+never unfolded.
 
 \tacindex{simpl \dots\ in}
 \begin{Variants}