diff options
Diffstat (limited to 'tactics/contradiction.ml')
| -rw-r--r-- | tactics/contradiction.ml | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/tactics/contradiction.ml b/tactics/contradiction.ml index c4a23f6862..ab6fb37fd1 100644 --- a/tactics/contradiction.ml +++ b/tactics/contradiction.ml @@ -15,6 +15,7 @@ open Reductionops open Misctypes open Sigma.Notations open Proofview.Notations +open Context.Named.Declaration (* Absurd *) @@ -47,7 +48,7 @@ let absurd c = absurd c let filter_hyp f tac = let rec seek = function | [] -> Proofview.tclZERO Not_found - | (id,_,t)::rest when f t -> tac id + | d::rest when f (get_type d) -> tac (get_id d) | _::rest -> seek rest in Proofview.Goal.enter { enter = begin fun gl -> let hyps = Proofview.Goal.hyps (Proofview.Goal.assume gl) in @@ -60,8 +61,9 @@ let contradiction_context = let env = Proofview.Goal.env gl in let rec seek_neg l = match l with | [] -> Tacticals.New.tclZEROMSG (Pp.str"No such contradiction") - | (id,_,typ)::rest -> - let typ = nf_evar sigma typ in + | d :: rest -> + let id = get_id d in + let typ = nf_evar sigma (get_type d) in let typ = whd_betadeltaiota env sigma typ in if is_empty_type typ then simplest_elim (mkVar id) |