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Metamath Proof Explorer

Theorem qcn

Description: A rational number is a complex number. (Contributed by NM, 2-Aug-2004)

		Ref	Expression
	Assertion	qcn	$⊢ A \in ℚ \to A \in ℂ$

Step	Hyp	Ref	Expression
1		qsscn	$⊢ ℚ \subseteq ℂ$
2	1	sseli	$⊢ A \in ℚ \to A \in ℂ$