Description: A member of an upper set of integers is a complex number. (Contributed by Glauco Siliprandi, 29-Jun-2017)
Ref | Expression | ||
---|---|---|---|
Assertion | eluzelcn | ⊢ ( 𝑁 ∈ ( ℤ≥ ‘ 𝑀 ) → 𝑁 ∈ ℂ ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluzelre | ⊢ ( 𝑁 ∈ ( ℤ≥ ‘ 𝑀 ) → 𝑁 ∈ ℝ ) | |
2 | 1 | recnd | ⊢ ( 𝑁 ∈ ( ℤ≥ ‘ 𝑀 ) → 𝑁 ∈ ℂ ) |