diff options
Diffstat (limited to 'doc/sphinx/proof-engine')
| -rw-r--r-- | doc/sphinx/proof-engine/ltac.rst | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/doc/sphinx/proof-engine/ltac.rst b/doc/sphinx/proof-engine/ltac.rst index dc355fa013..6fbb2fac6d 100644 --- a/doc/sphinx/proof-engine/ltac.rst +++ b/doc/sphinx/proof-engine/ltac.rst @@ -144,10 +144,11 @@ mode but it can also be used in toplevel definitions as shown below. : | `integer` (< | <= | > | >=) `integer` selector : [`ident`] : | `integer` - : (`integer` | `integer` - `integer`), ..., (`integer` | `integer` - `integer`) + : | (`integer` | `integer` - `integer`), ..., (`integer` | `integer` - `integer`) toplevel_selector : `selector` - : | `all` - : | `par` + : | all + : | par + : | ! .. productionlist:: coq top : [Local] Ltac `ltac_def` with ... with `ltac_def` @@ -177,7 +178,7 @@ Sequence A sequence is an expression of the following form: -.. tacn:: @expr ; @expr +.. tacn:: @expr__1 ; @expr__2 :name: ltac-seq The expression :n:`@expr__1` is evaluated to :n:`v__1`, which must be @@ -207,11 +208,11 @@ following form: were given. For instance, ``[> | auto]`` is a shortcut for ``[> idtac | auto ]``. - .. tacv:: [> {*| @expr} | @expr .. | {*| @expr}] + .. tacv:: [> {*| @expr__i} | @expr .. | {*| @expr__j}] - In this variant, token:`expr` is used for each goal coming after those - covered by the first list of :n:`@expr` but before those coevered by the - last list of :n:`@expr`. + In this variant, :n:`@expr` is used for each goal coming after those + covered by the list of :n:`@expr__i` but before those covered by the + list of :n:`@expr__j`. .. tacv:: [> {*| @expr} | .. | {*| @expr}] @@ -225,11 +226,11 @@ following form: tactic is not run at all. A tactic which expects multiple goals, such as ``swap``, would act as if a single goal is focused. - .. tacv:: expr ; [{*| @expr}] + .. tacv:: @expr__0 ; [{*| @expr__i}] This variant of local tactic application is paired with a sequence. In this - variant, there must be as many :n:`@expr` in the list as goals generated - by the application of the first :n:`@expr` to each of the individual goals + variant, there must be as many :n:`@expr__i` as goals generated + by the application of :n:`@expr__0` to each of the individual goals independently. All the above variants work in this form too. Formally, :n:`@expr ; [ ... ]` is equivalent to :n:`[> @expr ; [> ... ] .. ]`. @@ -247,20 +248,20 @@ focused goals with: We can also use selectors as a tactical, which allows to use them nested in a tactic expression, by using the keyword ``only``: - .. tacv:: only selector : expr + .. tacv:: only @selector : @expr :name: only ... : ... - When selecting several goals, the tactic expr is applied globally to all + When selecting several goals, the tactic :token:`expr` is applied globally to all selected goals. .. tacv:: [@ident] : @expr - In this variant, :n:`@expr` is applied locally to a goal previously named + In this variant, :token:`expr` is applied locally to a goal previously named by the user (see :ref:`existential-variables`). .. tacv:: @num : @expr - In this variant, :n:`@expr` is applied locally to the :token:`num`-th goal. + In this variant, :token:`expr` is applied locally to the :token:`num`-th goal. .. tacv:: {+, @num-@num} : @expr @@ -271,13 +272,13 @@ focused goals with: .. tacv:: all: @expr :name: all: ... - In this variant, :n:`@expr` is applied to all focused goals. ``all:`` can only + In this variant, :token:`expr` is applied to all focused goals. ``all:`` can only be used at the toplevel of a tactic expression. .. tacv:: !: @expr - In this variant, if exactly one goal is focused :n:`expr` is - applied to it. Otherwise the tactical fails. ``!:`` can only be + In this variant, if exactly one goal is focused, :token:`expr` is + applied to it. Otherwise the tactic fails. ``!:`` can only be used at the toplevel of a tactic expression. .. tacv:: par: @expr |