Description: Reals are a subset of the pair of real and complex numbers. (Contributed by David A. Wheeler, 8-Dec-2018)
Ref | Expression | ||
---|---|---|---|
Assertion | reelprrecn | ⊢ ℝ ∈ { ℝ , ℂ } |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | reex | ⊢ ℝ ∈ V | |
2 | 1 | prid1 | ⊢ ℝ ∈ { ℝ , ℂ } |