It was long and slightly curved, with a single edge.

The ribbon had but a single edge as well.

A deadlock state can be modeled by a single outgoing edge back to itself.

So we're talking about a knife with a point and a single edge.

It seemed he had no knife with but a single edge.

You can't point to a single cutting edge where I haven't been there first.

Thus he created a surface which had but a single side and a single edge.

However, in nearly every case, the term may also be used to refer to weapons with a single edge (backsword).

This digon can then be replaced by a single edge.

At each step we create a new node with a single edge emanating from it.