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-rw-r--r--doc/refman/RefMan-tac.tex19
1 files changed, 11 insertions, 8 deletions
diff --git a/doc/refman/RefMan-tac.tex b/doc/refman/RefMan-tac.tex
index f5568455f..d806adea5 100644
--- a/doc/refman/RefMan-tac.tex
+++ b/doc/refman/RefMan-tac.tex
@@ -1808,17 +1808,20 @@ last introduced hypothesis.
% It is recommended to use this variant of {\tt destruct} for
% robust proof scripts.
-\item{\tt destruct {\term} as {\namingintropattern}}
+\item{\tt destruct {\term} as {\disjconjintropattern} \_eqn}
This behaves as {\tt destruct {\term}} but adds an equation between
{\term} and the value that {\term} takes in each of the possible
- cases. The name of the equation is built according to
- {\namingintropattern} which can be an identifier, a ``?'', etc, as
- indicated in Section~\ref{intros-pattern}.
+ cases. The name of the equation is chosen by Coq. If
+ {\disjconjintropattern} is simply {\tt []}, it is automatically considered
+ as a disjunctive pattern of the appropriate size.
-\item{\tt destruct {\term} as {\namingintropattern} {\disjconjintropattern}}
+\item{\tt destruct {\term} as {\disjconjintropattern} \_eqn: {\namingintropattern}}
- This combines the two previous forms.
+ This behaves as {\tt destruct {\term} as
+ {\disjconjintropattern} \_eqn} but use {\namingintropattern} to
+ name the equation (see Section~\ref{intros-pattern}). Note that spaces
+ can generally be removed around {\tt \_eqn}.
\item{\tt destruct {\term} with \bindinglist}
@@ -1852,8 +1855,8 @@ last introduced hypothesis.
context of the subgoals corresponding to the cases (even
if no clause {\tt as {\namingintropattern}} is given.
-\item{\tt destruct {\term$_1$} with {\bindinglist$_1$} as {\namingintropattern} {\disjconjintropattern} using {\term$_2$} with {\bindinglist$_2$} in {\occgoalset}}\\
- {\tt edestruct {\term$_1$} with {\bindinglist$_1$} as {\namingintropattern} {\disjconjintropattern} using {\term$_2$} with {\bindinglist$_2$} in {\occgoalset}}
+\item{\tt destruct {\term$_1$} with {\bindinglist$_1$} as {\disjconjintropattern} \_eqn: {\namingintropattern} using {\term$_2$} with {\bindinglist$_2$} in {\occgoalset}}\\
+ {\tt edestruct {\term$_1$} with {\bindinglist$_1$} as {\disjconjintropattern} \_eqn: {\namingintropattern} using {\term$_2$} with {\bindinglist$_2$} in {\occgoalset}}
These are the general forms of {\tt destruct} and {\tt edestruct}.
It combines the effects of the {\tt with}, {\tt as}, {\tt using},