diff options
| author | barras | 2004-01-14 16:52:06 +0000 |
|---|---|---|
| committer | barras | 2004-01-14 16:52:06 +0000 |
| commit | e92027584f4134f4fa89a77a752bf28aedd9c44a (patch) | |
| tree | 0eefd0cf15a2f05fed2f49bf8b1ff26796fdf834 /doc/Cases.tex | |
| parent | 4ba765fe88d88e5765d6058b7d366e03318b789a (diff) | |
ajout d'une passe de latex our avoir un index correct
+ quelques petites retouches sur la doc
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@8476 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'doc/Cases.tex')
| -rw-r--r-- | doc/Cases.tex | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/doc/Cases.tex b/doc/Cases.tex index a8ab494c77..95411afae9 100644 --- a/doc/Cases.tex +++ b/doc/Cases.tex @@ -349,13 +349,12 @@ Fixpoint concat (n:nat) (l:listn n) (m:nat) (l':listn m) {struct l} : | consn n' a y => consn (n' + m) a (concat n' y m l') end. \end{coq_example} -The elimination predicate is $\lb n:\texttt{nat} \mto \lb -l:(\texttt{listn}~ n) \mto (\texttt{listn}~ (n+m))$. +The elimination predicate is {\tt fun (n:nat) (l:listn n) => listn~(n+m)}. In general if $m$ has type $(I~q_1\ldots q_r~t_1\ldots t_s)$ where $q_1\ldots q_r$ are parameters, the elimination predicate should be of the form~: -$\lb y_1\mto\ldots\lb y_s\mto \lb x:(I~q_1\ldots q_r~y_1\ldots y_s) -P$. +{\tt fun $y_1$\ldots $y_s$ $x$:($I$~$q_1$\ldots $q_r$~$y_1$\ldots + $y_s$) => P}. In the concrete syntax, it should be written~: \[ \kw{match}~m~\kw{as}~x~\kw{in}~(I~\_\ldots \_~y_1\ldots y_s)~\kw{return}~Q~\kw{with}~\ldots~\kw{end}\] @@ -401,12 +400,10 @@ correct Coq raises an error message. For example: \begin{coq_eval} Reset concat. Set Printing Depth 50. -(********** The following is not correct and should produce **********) -(**** Error: The elimination predicate [n:nat](listn (plus n m)) ****) -(*** should be of arity nat->nat->Type (for non dependent case) or ***) -(** (n:nat)(listn n)->(n0:nat)(listn n0)->Type (for dependent case) **) +(********** The following is not correct and should produce ***********) +(** Error: the term l' has type listn m while it is expected to have **) +(** type listn (?31 + ?32) **) \end{coq_eval} - \begin{coq_example} Fixpoint concat (n:nat) (l:listn n) (m:nat) |
