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-rw-r--r--doc/sphinx/addendum/ring.rst23
-rw-r--r--doc/sphinx/addendum/type-classes.rst4
2 files changed, 15 insertions, 12 deletions
diff --git a/doc/sphinx/addendum/ring.rst b/doc/sphinx/addendum/ring.rst
index 47d3a7d7cd..6a9b343ba8 100644
--- a/doc/sphinx/addendum/ring.rst
+++ b/doc/sphinx/addendum/ring.rst
@@ -310,16 +310,15 @@ The :n:`@ident` is not relevant. It is just used for error messages. The
axioms. The optional list of modifiers is used to tailor the behavior
of the tactic. The following list describes their syntax and effects:
-.. prodn::
- ring_mod ::= abstract %| decidable @term %| morphism @term
- %| setoid @term @term
- %| constants [@ltac]
- %| preprocess [@ltac]
- %| postprocess [@ltac]
- %| power_tac @term [@ltac]
- %| sign @term
- %| div @term
-
+.. productionlist:: coq
+ ring_mod : abstract | decidable `term` | morphism `term`
+ : | setoid `term` `term`
+ : | constants [`ltac`]
+ : | preprocess [`ltac`]
+ : | postprocess [`ltac`]
+ : | power_tac `term` [`ltac`]
+ : | sign `term`
+ : | div `term`
abstract
declares the ring as abstract. This is the default.
@@ -663,8 +662,8 @@ messages. :n:`@term` is a proof that the field signature satisfies the
(semi-)field axioms. The optional list of modifiers is used to tailor
the behavior of the tactic.
-.. prodn::
- field_mod := @ring_mod %| completeness @term
+.. productionlist:: coq
+ field_mod : `ring_mod` | completeness `term`
Since field tactics are built upon ``ring``
tactics, all modifiers of the ``Add Ring`` apply. There is only one
diff --git a/doc/sphinx/addendum/type-classes.rst b/doc/sphinx/addendum/type-classes.rst
index 6c7258f9c5..68b5b9d6fe 100644
--- a/doc/sphinx/addendum/type-classes.rst
+++ b/doc/sphinx/addendum/type-classes.rst
@@ -296,6 +296,10 @@ Variants:
This variant declares a class a posteriori from a constant or
inductive definition. No methods or instances are defined.
+ .. warn:: @ident is already declared as a typeclass
+
+ This command has no effect when used on a typeclass.
+
.. cmd:: Instance @ident {? @binders} : Class t1 … tn [| priority] := { field1 := b1 ; …; fieldi := bi }
The :cmd:`Instance` command is used to declare a type class instance named