| Symmetry
| Transitivity of 'term
-type 'tactic tactical =
- | LocatedTactical of CicAst.location * 'tactic tactical
+type thm_flavour =
+ [ `Definition
+ | `Fact
+ | `Goal
+ | `Lemma
+ | `Remark
+ | `Theorem
+ ]
+
+type 'term command =
+ | Proof
+ | Theorem of thm_flavour * string option * 'term * 'term option
+ (* flavour, name, type, body
+ * - name is absent when an unnamed theorem is being proved, tipically in
+ * interactive usage
+ * - body is present when its given along with the command, otherwise it
+ * will be given in proof editing mode using the tactical language
+ *)
+ | Qed of string option
+ (* name.
+ * Name is needed when theorem was started without providing a name
+ *)
+ | Quit
+
+type ('term, 'ident) tactical =
+ | LocatedTactical of CicAst.location * ('term, 'ident) tactical
+
+ | Tactic of ('term, 'ident) tactic
+ | Command of 'term command
| Fail
- | Do of int * 'tactic tactical
+ | Do of int * ('term, 'ident) tactical
| IdTac
- | Repeat of 'tactic tactical
- | Seq of 'tactic tactical list (* sequential composition *)
- | Tactic of 'tactic
- | Then of 'tactic tactical * 'tactic tactical list
- | Tries of 'tactic tactical list
+ | Repeat of ('term, 'ident) tactical
+ | Seq of ('term, 'ident) tactical list (* sequential composition *)
+ | Then of ('term, 'ident) tactical * ('term, 'ident) tactical list
+ | Tries of ('term, 'ident) tactical list
(* try a sequence of tacticals until one succeeds, fail otherwise *)
- | Try of 'tactic tactical (* try a tactical and mask failures *)
+ | Try of ('term, 'ident) tactical (* try a tactical and mask failures *)