Got split1 working, but noticed a nasty type inference bug with transplanted unification variables

2 files changed, 3 insertions, 3 deletions

diff --git a/lib/ur/incl.ur b/lib/ur/incl.ur
index d0f4b521..ebf7acef 100644
--- a/lib/ur/incl.ur
+++ b/lib/ur/incl.ur
@@ -21,7 +21,7 @@ fun inv1 [K] [nm :: Name] [t ::: K] [r :: {K}] [r' :: {K}] [[nm] ~ r]
     i [f nm t r'] (fn [r'' :: {K}] [[nm = t] ++ r ~ r''] (i' : incl' ([nm = t] ++ r) r' r'') =>
                       i'.Hide [f nm t] (f [nm] [t] [r ++ r''] !))
 
-fun inv2 [K] [nm :: Name] [t ::: K] [r :: {K}] [r' :: {K}] [[nm] ~ r]
+fun inv2 [K] [nm :: Name] [t :: K] [r :: {K}] [r' :: {K}] [[nm] ~ r]
          (i : incl ([nm = t] ++ r) r') =
     i [incl r r'] (fn [r'' :: {K}] [[nm = t] ++ r ~ r''] (i' : incl' ([nm = t] ++ r) r' r'') =>
                       fn [tp :: Type] (f : r''' :: {K} -> [r ~ r'''] => incl' r r' r''' -> tp) =>
@@ -35,6 +35,6 @@ fun fold [K] [tf :: {K} -> Type] [r ::: {K}]
     (i : tf []) (fl : folder r) =
     @Top.fold [fn r' => incl r' r -> tf r']
      (fn [nm :: Name] [v :: K] [r' :: {K}] [[nm] ~ r'] acc i =>
-         f [nm] [v] [r'] ! i (acc (inv2 [nm] [r'] [r] i)))
+         f [nm] [v] [r'] ! i (acc (inv2 [nm] [v] [r'] [r] i)))
      (fn _ => i)
      fl (incl [r] [[]])
diff --git a/lib/ur/incl.urs b/lib/ur/incl.urs
index d0d78b36..2c77369f 100644
--- a/lib/ur/incl.urs
+++ b/lib/ur/incl.urs
@@ -9,7 +9,7 @@ val inv1 : K --> nm :: Name -> t ::: K -> r :: {K} -> r' :: {K}
     -> incl ([nm = t] ++ r) r'
     -> (nm :: Name -> t :: K -> r :: {K} -> [[nm] ~ r] => f nm t ([nm = t] ++ r))
     -> f nm t r'
-val inv2 : K --> nm :: Name -> t ::: K -> r :: {K} -> r' :: {K}
+val inv2 : K --> nm :: Name -> t :: K -> r :: {K} -> r' :: {K}
            -> [[nm] ~ r] =>
     incl ([nm = t] ++ r) r' -> incl r r'