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-rw-r--r--mltt/core/lib.ML5
1 files changed, 3 insertions, 2 deletions
diff --git a/mltt/core/lib.ML b/mltt/core/lib.ML
index f15daf6..98d83cc 100644
--- a/mltt/core/lib.ML
+++ b/mltt/core/lib.ML
@@ -14,6 +14,7 @@ val dest_eq: term -> term * term
val mk_Var: string -> int -> typ -> term
val lambda_var: term -> term -> term
+val is_lvl: term -> bool
val is_typing: term -> bool
val mk_typing: term -> term -> term
val dest_typing: term -> term * term
@@ -83,6 +84,8 @@ fun lambda_var x tm =
(* Object *)
+fun is_lvl t = case fastype_of t of Type (\<^type_name>\<open>lvl\<close>, _) => true | _ => false
+
fun is_typing (Const (\<^const_name>\<open>has_type\<close>, _) $ _ $ _) = true
| is_typing _ = false
@@ -189,7 +192,6 @@ fun subterm_order t1 t2 =
else EQUAL
fun lvl_order t1 t2 =
- let val _ = @{print} (fastype_of t1) in
case fastype_of t1 of
Type (\<^type_name>\<open>lvl\<close>, _) => (case fastype_of t2 of
Type (\<^type_name>\<open>lvl\<close>, _) => EQUAL
@@ -199,7 +201,6 @@ fun lvl_order t1 t2 =
Type (\<^type_name>\<open>lvl\<close>, _) => GREATER
| _ => EQUAL)
| _ => EQUAL
- end
fun cond_order o1 o2 = case o1 of EQUAL => o2 | _ => o1