Fill in the blank proofs for Section 2.1
Claim:
If
n
and
m
are odd, then
m
+
n
is even.
Proof
.
Click here
.
Claim:
If
n
is even, then
n
^{2}
is even.
Proof
.
Click here
.
Claim:
If
n
is odd, then
n
^{2}
- 1 is divisible by 4.
Proof
.
Click here
.