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Metamath Proof Explorer

Theorem addridi

Description: 0 is an additive identity. (Contributed by NM, 23-Nov-1994) (Revised by Scott Fenton, 3-Jan-2013)

		Ref	Expression
	Hypothesis	mul.1	$⊢ A \in ℂ$
	Assertion	addridi	$⊢ A + 0 = A$

Step	Hyp	Ref	Expression
1		mul.1	$⊢ A \in ℂ$
2		addrid	$⊢ A \in ℂ \to A + 0 = A$
3	1 2	ax-mp	$⊢ A + 0 = A$