X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Ftactics%2Ftactics.mli;h=77e3f8ac545f176a1ac99488be6df6607bbf847f;hb=91a095f0686ee569ba035e4e30c7d071588cb8e7;hp=4780a82fb32ba51fdcb998adc6a73dc980d0acc4;hpb=6d93d688ae2da401417f64ffd5ee6ffccaa89fc1;p=helm.git

diff --git a/helm/ocaml/tactics/tactics.mli b/helm/ocaml/tactics/tactics.mli
index 4780a82fb..77e3f8ac5 100644
--- a/helm/ocaml/tactics/tactics.mli
+++ b/helm/ocaml/tactics/tactics.mli
@@ -79,6 +79,6 @@ val split : ProofEngineTypes.tactic
 val symmetry : ProofEngineTypes.tactic
 val transitivity : term:Cic.term -> ProofEngineTypes.tactic
 val unfold :
-  ?what:Cic.term ->
+  Cic.term option ->
   pattern:ProofEngineTypes.pattern -> ProofEngineTypes.tactic
 val whd : pattern:ProofEngineTypes.pattern -> ProofEngineTypes.tactic