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-rw-r--r--theories/Init/Tactics.v6
1 files changed, 0 insertions, 6 deletions
diff --git a/theories/Init/Tactics.v b/theories/Init/Tactics.v
index a3eb91ec65..5d1e87ae0c 100644
--- a/theories/Init/Tactics.v
+++ b/theories/Init/Tactics.v
@@ -55,12 +55,6 @@ Ltac contradict H :=
| _ => (elim H;fail) || pos H
end.
-(* Transforming a negative goal [ H:~A |- ~B ] into a positive one [ B |- A ]*)
-
-Ltac swap H :=
- idtac "swap is OBSOLETE: use contradict instead.";
- intro; apply H; clear H.
-
(* To contradict an hypothesis without copying its type. *)
Ltac absurd_hyp H :=