diff --git a/src/lmath.rs b/src/lmath.rs
index c44e0c9..6667d36 100644
--- a/src/lmath.rs
+++ b/src/lmath.rs
@@ -23,15 +23,10 @@
 #[license = "ASL2"];
 #[crate_type = "lib"];
 
+pub mod dim;
+
 pub mod mat;
 pub mod quat;
 pub mod vec;
 
 pub mod projection;
-
-pub trait Dimensional<T,Slice> {
-    pub fn index<'a>(&'a self, i: uint) -> &'a T;
-    pub fn index_mut<'a>(&'a mut self, i: uint) -> &'a mut T;
-    pub fn as_slice<'a>(&'a self) -> &'a Slice;
-    pub fn as_mut_slice<'a>(&'a mut self) -> &'a mut Slice;
-}
diff --git a/src/mat.rs b/src/mat.rs
index 4318755..2ebbfdb 100644
--- a/src/mat.rs
+++ b/src/mat.rs
@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pub use super::Dimensional;
+pub use dim::Dimensional;
 pub use self::mat2::{Mat2, ToMat2};
 pub use self::mat3::{Mat3, ToMat3};
 pub use self::mat4::{Mat4, ToMat4};
diff --git a/src/mat2.rs b/src/mat2.rs
index 1533570..3c8839b 100644
--- a/src/mat2.rs
+++ b/src/mat2.rs
@@ -13,8 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pub use super::Dimensional;
-
+use dim::Dimensional;
 use mat::{Mat3, ToMat3};
 use mat::{Mat4, ToMat4};
 use vec::Vec2;
diff --git a/src/mat3.rs b/src/mat3.rs
index afd3eb8..67bdd50 100644
--- a/src/mat3.rs
+++ b/src/mat3.rs
@@ -13,8 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pub use super::Dimensional;
-
+use dim::Dimensional;
 use mat::{Mat4, ToMat4};
 use quat::{Quat, ToQuat};
 use vec::Vec3;
diff --git a/src/mat4.rs b/src/mat4.rs
index 8fa21a1..8b9e66a 100644
--- a/src/mat4.rs
+++ b/src/mat4.rs
@@ -13,8 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pub use super::Dimensional;
-
+use dim::Dimensional;
 use mat::Mat3;
 use vec::Vec4;
 
diff --git a/src/quat.rs b/src/quat.rs
index 83d16ab..325863c 100644
--- a/src/quat.rs
+++ b/src/quat.rs
@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pub use super::Dimensional;
+pub use dim::Dimensional;
 
 use mat::{Mat3, ToMat3};
 use vec::Vec3;
diff --git a/src/vec.rs b/src/vec.rs
index 46fc9c2..54f026c 100644
--- a/src/vec.rs
+++ b/src/vec.rs
@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pub use super::Dimensional;
+pub use dim::Dimensional;
 pub use self::vec2::Vec2;
 pub use self::vec3::Vec3;
 pub use self::vec4::Vec4;
diff --git a/src/vec2.rs b/src/vec2.rs
index 808780a..bb04f07 100644
--- a/src/vec2.rs
+++ b/src/vec2.rs
@@ -13,8 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pub use super::Dimensional;
-
+use dim::Dimensional;
 mod macros;
 mod dim_macros;
 mod vec_macros;
diff --git a/src/vec3.rs b/src/vec3.rs
index 25c0c96..dee5795 100644
--- a/src/vec3.rs
+++ b/src/vec3.rs
@@ -13,8 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pub use super::Dimensional;
-
+use dim::Dimensional;
 mod macros;
 mod dim_macros;
 mod vec_macros;
diff --git a/src/vec4.rs b/src/vec4.rs
index 56737a4..a1af0bf 100644
--- a/src/vec4.rs
+++ b/src/vec4.rs
@@ -13,8 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pub use super::Dimensional;
-
+use dim::Dimensional;
 mod macros;
 mod dim_macros;
 mod vec_macros;