diff options
| -rw-r--r-- | contrib/first-order/rules.ml | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/contrib/first-order/rules.ml b/contrib/first-order/rules.ml index 4c8c8f9b3..dafef4efe 100644 --- a/contrib/first-order/rules.ml +++ b/contrib/first-order/rules.ml @@ -35,10 +35,9 @@ let wrap n b tacrec seq gls= match nc with []->anomaly "Not the expected number of hyps" | ((id,_,typ) as nd)::q-> - if occur_var env id (pf_concl gls) then - seq - else if List.exists (occur_var_in_decl env id) ctx then - seq + if occur_var env id (pf_concl gls) || + List.exists (occur_var_in_decl env id) ctx then + (aux (i-1) q (nd::ctx)) else add_left (VarRef id,typ) (aux (i-1) q (nd::ctx)) true gls in let seq1=aux n nc [] in |