Proof: Additive Identity Variation

Let's prove the following theorem:

Proof:

Proof Table

#	Claim	Reason
1	a + 0 = a	a + 0 = a (Additive Identity)
2	0 + a = a + 0	0 + a = a + 0 (Commutative Property of Addition)
3	0 + a = a	if 0 + a = a + 0 and a + 0 = a, then 0 + a = a (Transitive Property of Equality)

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