Pons Assinorum

See also: [Literary Terms] The "pons assinorum" (Latin: "bridge of asses) refers to a simple THEOREM in Euclid's geometry (see map) which is SOOO easy to prove that if you can't solve it (cross the bridge), then you might as well give up and go shove your head into a pig. I think it's the one where you show that the vertical bisector of an isocelles triangle also bisects the apex (top) angle of said triangle. But, being a sort of Pons Medula Oblongata these days, I wouldn't hazzard a guess at that sort of thing.