EDB — 0WP

Exercises

1. [0WP]Note that if $d(x,y)\ne d(y,z)$ then $d(x,z)=max\{d(x,y),d(y,z)\}$.

   Solution 1

   [0WQ]↺↻

   Intuitively, all triangles are isosceles, and the base is shorter than equal sides.