Theorem qsscn

Description: The rationals are a subset of the complex numbers. (Contributed by NM, 2-Aug-2004)

	Ref	Expression
Assertion	qsscn	⊢ ℚ ⊆ ℂ

Proof

Step	Hyp	Ref	Expression
1		qssre	⊢ ℚ ⊆ ℝ
2		ax-resscn	⊢ ℝ ⊆ ℂ
3	1 2	sstri	⊢ ℚ ⊆ ℂ