Theorem rpcnne0d

Description: A positive real is a nonzero complex number. (Contributed by Mario Carneiro, 28-May-2016)

	Ref	Expression
Hypothesis	rpred.1	$$⊢\phi \to A\in {ℝ}^{+}$$
Assertion	rpcnne0d	$$⊢\phi \to \left(A\in ℂ\wedge A\ne 0\right)$$

Proof

Step	Hyp	Ref	Expression
1		rpred.1	$$⊢\phi \to A\in {ℝ}^{+}$$
2	1	rpcnd	$$⊢\phi \to A\in ℂ$$
3	1	rpne0d	$$⊢\phi \to A\ne 0$$
4	2 3	jca	$$⊢\phi \to \left(A\in ℂ\wedge A\ne 0\right)$$