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| -rw-r--r-- | doc/sphinx/language/gallina-specification-language.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/sphinx/language/gallina-specification-language.rst b/doc/sphinx/language/gallina-specification-language.rst index d17043105..76a016ff6 100644 --- a/doc/sphinx/language/gallina-specification-language.rst +++ b/doc/sphinx/language/gallina-specification-language.rst @@ -1260,6 +1260,12 @@ Chapter :ref:`Tactics`. The basic assertion command is: The name you provided is already defined. You have then to choose another name. + .. exn:: Nested proofs are not allowed unless you turn option Nested Proofs Allowed on. + + You are asserting a new statement while already being in proof editing mode. + This feature, called nested proofs, is disabled by default. + To activate it, turn option :opt:`Nested Proofs Allowed` on. + The following commands are synonyms of :n:`Theorem @ident {? @binders } : type`: .. cmdv:: Lemma @ident {? @binders } : @type |