Saddlepoints (a) Let A be an arbitrary m n matrix game. Show that any two saddlepoints must have the same value. In other words, if . are two saddlepoints, show that (b) Let A be a  matrix game in...

Saddlepoints

(a) Let A be an arbitrary m n matrix game. Show that any two saddlepoints must have the same value. In other words, if .
are two saddlepoints, show that

(b) Let A be a
 matrix game in which
are saddlepoints. Show that A has at least two other saddlepoints. (c) Give an example of a
 matrix game with exactly three saddlepoints.