A Terse Primer on Equilibrium of bi-matrix games

<br>We assemble well-known basic results about equilibrium of bi-matrix games along with their proofs, thereby providing a "one-stop" solution for any search for such results. Apart from "Brouwer fixed point theorem" and its one dimensional version- the "Intermediate Value Theorem for Continuous Functions on an interval of the real line"- the mathematics used to prove the results is within the scope of "finite mathematics".