Description: A positive integer is a positive real. (Contributed by Mario Carneiro, 28-May-2016)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | nnrpd.1 | ⊢ ( 𝜑 → 𝐴 ∈ ℕ ) | |
| Assertion | nnrpd | ⊢ ( 𝜑 → 𝐴 ∈ ℝ+ ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnrpd.1 | ⊢ ( 𝜑 → 𝐴 ∈ ℕ ) | |
| 2 | nnrp | ⊢ ( 𝐴 ∈ ℕ → 𝐴 ∈ ℝ+ ) | |
| 3 | 1 2 | syl | ⊢ ( 𝜑 → 𝐴 ∈ ℝ+ ) |