diff options
Diffstat (limited to 'tactics/tactics.ml')
| -rw-r--r-- | tactics/tactics.ml | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tactics/tactics.ml b/tactics/tactics.ml index a42e4b44b..bb57e2bf4 100644 --- a/tactics/tactics.ml +++ b/tactics/tactics.ml @@ -128,14 +128,14 @@ let unsafe_intro env store decl b = (sigma, mkNamedLambda_or_LetIn decl ev) end -let introduction ?(check=true) id = +let introduction id = Proofview.Goal.enter begin fun gl -> let concl = Proofview.Goal.concl gl in let sigma = Tacmach.New.project gl in let hyps = named_context_val (Proofview.Goal.env gl) in let store = Proofview.Goal.extra gl in let env = Proofview.Goal.env gl in - let () = if check && mem_named_context_val id hyps then + let () = if mem_named_context_val id hyps then user_err ~hdr:"Tactics.introduction" (str "Variable " ++ Id.print id ++ str " is already declared.") in |