Description: A rational number is a real number. (Contributed by Glauco Siliprandi, 26-Jun-2021)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | qred.1 | ⊢ ( 𝜑 → 𝐴 ∈ ℚ ) | |
| Assertion | qred | ⊢ ( 𝜑 → 𝐴 ∈ ℝ ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | qred.1 | ⊢ ( 𝜑 → 𝐴 ∈ ℚ ) | |
| 2 | qre | ⊢ ( 𝐴 ∈ ℚ → 𝐴 ∈ ℝ ) | |
| 3 | 1 2 | syl | ⊢ ( 𝜑 → 𝐴 ∈ ℝ ) |