Description: A positive real is a complex number. (Contributed by Mario Carneiro, 28-May-2016)
Ref | Expression | ||
---|---|---|---|
Hypothesis | rpred.1 | |- ( ph -> A e. RR+ ) |
|
Assertion | rpcnd | |- ( ph -> A e. CC ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rpred.1 | |- ( ph -> A e. RR+ ) |
|
2 | 1 | rpred | |- ( ph -> A e. RR ) |
3 | 2 | recnd | |- ( ph -> A e. CC ) |