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-rw-r--r--doc/sphinx/addendum/extended-pattern-matching.rst19
1 files changed, 11 insertions, 8 deletions
diff --git a/doc/sphinx/addendum/extended-pattern-matching.rst b/doc/sphinx/addendum/extended-pattern-matching.rst
index 64d4eddf0..c4f014772 100644
--- a/doc/sphinx/addendum/extended-pattern-matching.rst
+++ b/doc/sphinx/addendum/extended-pattern-matching.rst
@@ -46,7 +46,7 @@ the expressiveness of the theory remains the same. Once the stage of
parsing has finished only simple patterns remain. Re-nesting of
pattern is performed at printing time. An easy way to see the result
of the expansion is to toggle off the nesting performed at printing
-(use here :opt:`Set Printing Matching`), then by printing the term with :cmd:`Print`
+(use here :opt:`Printing Matching`), then by printing the term with :cmd:`Print`
if the term is a constant, or using the command :cmd:`Check`.
The extended ``match`` still accepts an optional *elimination predicate*
@@ -75,7 +75,7 @@ by:
Multiple patterns
-----------------
-Using multiple patterns in the definition of max lets us write:
+Using multiple patterns in the definition of ``max`` lets us write:
.. coqtop:: in undo
@@ -273,7 +273,7 @@ This option (off by default) removes parameters from constructors in patterns:
match l with
| nil => nil
| cons _ l' => l'
- end)
+ end).
Unset Asymmetric Patterns.
Implicit arguments in patterns
@@ -305,6 +305,8 @@ explicitations (as for terms 2.7.11).
end).
+.. _matching-dependent:
+
Matching objects of dependent types
-----------------------------------
@@ -414,6 +416,7 @@ length, by writing
I have a copy of :g:`b` in type :g:`listn 0` resp :g:`listn (S n')`.
+.. _match-in-patterns:
Patterns in ``in``
~~~~~~~~~~~~~~~~~~
@@ -427,7 +430,7 @@ become impossible branches. In an impossible branch, you can answer
anything but False_rect unit has the advantage to be subterm of
anything.
-To be concrete: the tail function can be written:
+To be concrete: the ``tail`` function can be written:
.. coqtop:: in
@@ -588,24 +591,24 @@ generated expression and the original.
Here is a summary of the error messages corresponding to each
situation:
-.. exn:: The constructor @ident expects @num arguments
+.. exn:: The constructor @ident expects @num arguments.
The variable ident is bound several times in pattern termFound a constructor
of inductive type term while a constructor of term is expectedPatterns are
incorrect (because constructors are not applied to the correct number of the
arguments, because they are not linear or they are wrongly typed).
-.. exn:: Non exhaustive pattern-matching
+.. exn:: Non exhaustive pattern-matching.
The pattern matching is not exhaustive.
.. exn:: The elimination predicate term should be of arity @num (for non \
- dependent case) or @num (for dependent case)
+ dependent case) or @num (for dependent case).
The elimination predicate provided to match has not the expected arity.
.. exn:: Unable to infer a match predicate
- Either there is a type incompatibility or the problem involves dependencies
+ Either there is a type incompatibility or the problem involves dependencies.
There is a type mismatch between the different branches. The user should
provide an elimination predicate.