the passive set and passive list are expected to have the same cardinality, that...

[helm.git] / helm / software / components / tactics / proofEngineHelpers.ml

diff --git a/helm/software/components/tactics/proofEngineHelpers.ml b/helm/software/components/tactics/proofEngineHelpers.ml
index e45c13257d54003e2dbee36171e84463417127e1..fc508f0c11a33b85df8795ab5c63e487b3214dcb 100644 (file)
--- a/helm/software/components/tactics/proofEngineHelpers.ml
+++ b/helm/software/components/tactics/proofEngineHelpers.ml
@@ -56,7 +56,7 @@ let subst_meta_in_proof proof meta term newmetasenv =
          i,canonical_context',(subst_in ty)
       ) metasenv'
     in
-     let bo' = subst_in bo in
+     let bo' = lazy (subst_in (Lazy.force bo)) in
      (* Metavariables can appear also in the *statement* of the theorem
       * since the parser does not reject as statements terms with
       * metavariable therein *)
@@ -79,7 +79,7 @@ let subst_meta_in_proof proof meta term newmetasenv =
 let subst_meta_and_metasenv_in_proof proof meta subst newmetasenv =
  let (uri,_,initial_subst,bo,ty, attrs) = proof in
   let subst_in = CicMetaSubst.apply_subst subst in
-  let bo' = subst_in bo in
+  let bo' = lazy (subst_in (Lazy.force bo)) in
   (* Metavariables can appear also in the *statement* of the theorem
    * since the parser does not reject as statements terms with
    * metavariable therein *)