Description: Complex numbers are a subset of the pair of real and complex numbers . (Contributed by David A. Wheeler, 8-Dec-2018)
Ref | Expression | ||
---|---|---|---|
Assertion | cnelprrecn | ⊢ ℂ ∈ { ℝ , ℂ } |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnex | ⊢ ℂ ∈ V | |
2 | 1 | prid2 | ⊢ ℂ ∈ { ℝ , ℂ } |