The following observations may be made:
•
Any number raised by the exponent 1 is the number itself.
•
Any nonzero number raised by the exponent 0 is 1; one
interpretation of these powers is as empty products.
•
These equations do not decide the value of 0
0
.
•
Raising 0 by a negative exponent would imply division by 0, so
it is left undefined.
The identity
b
m+n
= b
m⋅b
n
initially defined only for positive
