Description: An integer is an extended real number. (Contributed by Glauco Siliprandi, 2-Jan-2022)
Ref | Expression | ||
---|---|---|---|
Hypothesis | zxrd.1 | |- ( ph -> A e. ZZ ) |
|
Assertion | zxrd | |- ( ph -> A e. RR* ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | zxrd.1 | |- ( ph -> A e. ZZ ) |
|
2 | 1 | zred | |- ( ph -> A e. RR ) |
3 | 2 | rexrd | |- ( ph -> A e. RR* ) |