Requires detailed process and reasonable logic

2. In Test 17 we have used the following theorem Without a proof. Write up a proof for it. The Cancellation Theorem for Limits If lini 9(1') exists, and f is a function that is equal to g on an open interval containing 13.[3 (3 except possibly at r? itself} then limg(m) : lim f(:r) III"C 174C