diff -r 0a689881b0f1 -r 8264d72aa347 src/direct_product.rs
--- a/src/direct_product.rs	Mon May 12 16:28:50 2025 -0500
+++ b/src/direct_product.rs	Mon May 12 17:10:39 2025 -0500
@@ -264,10 +264,10 @@
 
 /// We only support 'closed' `Euclidean` `Pair`s, as more general ones cause
 /// compiler overflows.
-impl<A, B, F: Float> Euclidean<F> for Pair<A, B>
+impl<A, B, F: Float> Euclidean for Pair<A, B>
 where
-    A: Euclidean<F>,
-    B: Euclidean<F>,
+    A: Euclidean<Field = F>,
+    B: Euclidean<Field = F>,
     //Pair<A, B>: Euclidean<F>,
     Self: Sized
         + Mul<F, Output = Pair<A, B>>
@@ -284,8 +284,6 @@
         + for<'b> SubAssign<&'b Self>
         + Neg<Output = Pair<A, B>>,
 {
-    type Output = Pair<A, B>;
-
     fn dot<I: Instance<Self>>(&self, other: I) -> F {
         let Pair(u, v) = other.decompose();
         self.0.dot(u) + self.1.dot(v)