T5.5 3 of 8
Deriving a few "Derived rules"
Let's make sure we see what if means for CM to be a derived rule. So, for this page you'll have only the basic or essential rules: those of 5.4. The idea is for you to show that the "derived" or "short-cut" rule are just that.
As usual, you'll find answers to "selected problems" here. But if you look at these, you may want to come back and do these again later entirely on your own.