We use this principle: The logarithmic equationmay be written as the exponential equation So let's let Then becomes the log equation: which by the above principle (in red) may be written as the exponential equation: or And since we let , then This time we let , and that becomes: Then we use the above same principle in red again on that logarithmic equation, and we get the exponential equation: or Since we let , then we use that same principle again on that logarithmic equation, and we get the exponential equation thus Edwin