Proof: Zero Plus a

Let's prove the following theorem:

Proof:

Proof Table

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

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