Description: A rational number is a real number. (Contributed by Glauco Siliprandi, 26-Jun-2021)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | qred.1 | |- ( ph -> A e. QQ ) |
|
| Assertion | qred | |- ( ph -> A e. RR ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | qred.1 | |- ( ph -> A e. QQ ) |
|
| 2 | qre | |- ( A e. QQ -> A e. RR ) |
|
| 3 | 1 2 | syl | |- ( ph -> A e. RR ) |