diff --git a/src/lib.rs b/src/lib.rs
index aefd89ca..6cc3d907 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -109,7 +109,6 @@ extern crate serialize;
 extern crate test;
 
 use std::cmp;
-pub use traits::{PartialLess, PartialEqual, PartialGreater, NotComparable};
 pub use traits::{
     Absolute,
     AbsoluteRotate,
diff --git a/src/structs/pnt.rs b/src/structs/pnt.rs
index 51761d8b..451d85de 100644
--- a/src/structs/pnt.rs
+++ b/src/structs/pnt.rs
@@ -5,8 +5,7 @@
 use std::mem;
 use std::slice::{Items, MutItems};
 use std::iter::{Iterator, FromIterator};
-use traits::operations::{ApproxEq, POrd, POrdering, PartialLess, PartialEqual,
-                         PartialGreater, NotComparable, Axpy, ScalarAdd, ScalarSub, ScalarMul,
+use traits::operations::{ApproxEq, POrd, POrdering, Axpy, ScalarAdd, ScalarSub, ScalarMul,
                          ScalarDiv};
 use traits::structure::{Cast, Dim, Indexable, Iterable, IterableMut, PntAsVec, Shape,
                         NumPnt, FloatPnt, BaseFloat, BaseNum, Zero, One, Bounded};
diff --git a/src/structs/quat.rs b/src/structs/quat.rs
index bdd4bd6d..535e294e 100644
--- a/src/structs/quat.rs
+++ b/src/structs/quat.rs
@@ -7,8 +7,7 @@ use std::num;
 use std::rand::{Rand, Rng};
 use std::slice::{Items, MutItems};
 use structs::{Vec3, Pnt3, Rot3, Mat3, Vec3MulRhs, Pnt3MulRhs};
-use traits::operations::{ApproxEq, Inv, POrd, POrdering, NotComparable, PartialLess,
-                         PartialGreater, PartialEqual, Axpy, ScalarAdd, ScalarSub, ScalarMul,
+use traits::operations::{ApproxEq, Inv, POrd, POrdering, Axpy, ScalarAdd, ScalarSub, ScalarMul,
                          ScalarDiv};
 use traits::structure::{Cast, Indexable, Iterable, IterableMut, Dim, Shape, BaseFloat, BaseNum, Zero,
                         One, Bounded};
diff --git a/src/structs/vec.rs b/src/structs/vec.rs
index 0cae3b8b..bdb5f6dc 100644
--- a/src/structs/vec.rs
+++ b/src/structs/vec.rs
@@ -5,8 +5,7 @@
 use std::mem;
 use std::slice::{Items, MutItems};
 use std::iter::{Iterator, FromIterator};
-use traits::operations::{ApproxEq, POrd, POrdering, PartialLess, PartialEqual,
-                         PartialGreater, NotComparable, Axpy, ScalarAdd, ScalarSub, ScalarMul,
+use traits::operations::{ApproxEq, POrd, POrdering, Axpy, ScalarAdd, ScalarSub, ScalarMul,
                          ScalarDiv, Absolute};
 use traits::geometry::{Transform, Rotate, FromHomogeneous, ToHomogeneous, Dot, Norm,
                        Translation, Translate};
diff --git a/src/structs/vec_macros.rs b/src/structs/vec_macros.rs
index 7a4a771b..b93f9896 100644
--- a/src/structs/vec_macros.rs
+++ b/src/structs/vec_macros.rs
@@ -80,16 +80,16 @@ macro_rules! ord_impl(
                 if is_lt { // <
                     $(
                         if a.$compN > b.$compN {
-                            return NotComparable
+                            return POrdering::NotComparable
                         }
                      )*
 
-                    PartialLess
+                    POrdering::PartialLess
                 }
                 else { // >=
                     $(
                         if a.$compN < b.$compN {
-                            return NotComparable
+                            return POrdering::NotComparable
                         }
                         else if a.$compN > b.$compN {
                             is_eq = false;
@@ -98,10 +98,10 @@ macro_rules! ord_impl(
                      )*
 
                     if is_eq {
-                        PartialEqual
+                        POrdering::PartialEqual
                     }
                     else {
-                        PartialGreater
+                        POrdering::PartialGreater
                     }
                 }
             }
diff --git a/src/traits/mod.rs b/src/traits/mod.rs
index 7a54df3e..364d0f81 100644
--- a/src/traits/mod.rs
+++ b/src/traits/mod.rs
@@ -11,7 +11,7 @@ pub use traits::structure::{FloatVec, FloatPnt, Basis, Cast, Col, Dim, Indexable
 
 pub use traits::operations::{Absolute, ApproxEq, Axpy, Cov, Det, Inv, LMul, Mean, Outer, POrd,
                              RMul, ScalarAdd, ScalarSub, ScalarMul, ScalarDiv, Transpose, EigenQR};
-pub use traits::operations::{POrdering, PartialLess, PartialEqual, PartialGreater, NotComparable};
+pub use traits::operations::POrdering;
 
 pub mod geometry;
 pub mod structure;
diff --git a/src/traits/operations.rs b/src/traits/operations.rs
index b47e6baa..fead0289 100644
--- a/src/traits/operations.rs
+++ b/src/traits/operations.rs
@@ -19,40 +19,40 @@ pub enum POrdering {
 impl POrdering {
     /// Returns `true` if `self` is equal to `Equal`.
     pub fn is_eq(&self) -> bool {
-        *self == PartialEqual
+        *self == POrdering::PartialEqual
     }
 
     /// Returns `true` if `self` is equal to `Less`.
     pub fn is_lt(&self) -> bool {
-        *self == PartialLess
+        *self == POrdering::PartialLess
     }
 
     /// Returns `true` if `self` is equal to `Less` or `Equal`.
     pub fn is_le(&self) -> bool {
-        *self == PartialLess || *self == PartialEqual
+        *self == POrdering::PartialLess || *self == POrdering::PartialEqual
     }
 
     /// Returns `true` if `self` is equal to `Greater`.
     pub fn is_gt(&self) -> bool {
-        *self == PartialGreater
+        *self == POrdering::PartialGreater
     }
 
     /// Returns `true` if `self` is equal to `Greater` or `Equal`.
     pub fn is_ge(&self) -> bool {
-        *self == PartialGreater || *self == PartialEqual
+        *self == POrdering::PartialGreater || *self == POrdering::PartialEqual
     }
 
     /// Returns `true` if `self` is equal to `NotComparable`.
     pub fn is_not_comparable(&self) -> bool {
-        *self == NotComparable
+        *self == POrdering::NotComparable
     }
 
     /// Creates a `POrdering` from an `Ordering`.
     pub fn from_ordering(ord: Ordering) -> POrdering {
         match ord {
-            Less    => PartialLess,
-            Equal   => PartialEqual,
-            Greater => PartialGreater
+            Less    => POrdering::PartialLess,
+            Equal   => POrdering::PartialEqual,
+            Greater => POrdering::PartialGreater
         }
     }
 
@@ -61,10 +61,10 @@ impl POrdering {
     /// Returns `None` if `self` is `NotComparable`.
     pub fn to_ordering(self) -> Option<Ordering> {
         match self {
-            PartialLess    => Some(Less),
-            PartialEqual   => Some(Equal),
-            PartialGreater => Some(Greater),
-            NotComparable  => None
+            POrdering::PartialLess    => Some(Less),
+            POrdering::PartialEqual   => Some(Equal),
+            POrdering::PartialGreater => Some(Greater),
+            POrdering::NotComparable  => None
         }
     }
 }
@@ -108,9 +108,9 @@ pub trait POrd {
     #[inline]
     fn partial_min<'a>(a: &'a Self, b: &'a Self) -> Option<&'a Self> {
         match POrd::partial_cmp(a, b) {
-            PartialLess | PartialEqual => Some(a),
-            PartialGreater             => Some(b),
-            NotComparable              => None
+            POrdering::PartialLess | POrdering::PartialEqual => Some(a),
+            POrdering::PartialGreater             => Some(b),
+            POrdering::NotComparable              => None
         }
     }
 
@@ -118,9 +118,9 @@ pub trait POrd {
     #[inline]
     fn partial_max<'a>(a: &'a Self, b: &'a Self) -> Option<&'a Self> {
         match POrd::partial_cmp(a, b) {
-            PartialGreater | PartialEqual => Some(a),
-            PartialLess                   => Some(b),
-            NotComparable                 => None
+            POrdering::PartialGreater | POrdering::PartialEqual => Some(a),
+            POrdering::PartialLess   => Some(b),
+            POrdering::NotComparable => None
         }
     }