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Diffstat (limited to 'doc/sphinx/addendum/program.rst')
| -rw-r--r-- | doc/sphinx/addendum/program.rst | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/doc/sphinx/addendum/program.rst b/doc/sphinx/addendum/program.rst index 56f84d0ff0..b410833d25 100644 --- a/doc/sphinx/addendum/program.rst +++ b/doc/sphinx/addendum/program.rst @@ -194,14 +194,14 @@ Program Fixpoint The optional order annotation follows the grammar: .. productionlist:: orderannot - order : measure `term` (`term`)? | wf `term` `term` + order : measure `term` [ `term` ] | wf `term` `ident` - + :g:`measure f ( R )` where :g:`f` is a value of type :g:`X` computed on - any subset of the arguments and the optional (parenthesised) term - ``(R)`` is a relation on ``X``. By default ``X`` defaults to ``nat`` and ``R`` - to ``lt``. + + :g:`measure f R` where :g:`f` is a value of type :g:`X` computed on + any subset of the arguments and the optional term + :g:`R` is a relation on :g:`X`. :g:`X` defaults to :g:`nat` and :g:`R` + to :g:`lt`. - + :g:`wf R x` which is equivalent to :g:`measure x (R)`. + + :g:`wf R x` which is equivalent to :g:`measure x R`. The structural fixpoint operator behaves just like the one of |Coq| (see :cmd:`Fixpoint`), except it may also generate obligations. It works |