Metamath Proof Explorer


Theorem rrpsscn

Description: The positive reals are a subset of the complex numbers. (Contributed by Glauco Siliprandi, 29-Jun-2017)

Ref Expression
Assertion rrpsscn + ⊆ ℂ

Proof

Step Hyp Ref Expression
1 rpcn ( 𝑥 ∈ ℝ+𝑥 ∈ ℂ )
2 1 ssriv + ⊆ ℂ