Description: The field of complex numbers is a set. (Contributed by Stefan O'Rear, 27-Nov-2014) (Revised by Mario Carneiro, 14-Aug-2015) (Revised by Thierry Arnoux, 17-Dec-2017)
Ref | Expression | ||
---|---|---|---|
Assertion | cnfldex | |- CCfld e. _V |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnfldstr | |- CCfld Struct <. 1 , ; 1 3 >. |
|
2 | structex | |- ( CCfld Struct <. 1 , ; 1 3 >. -> CCfld e. _V ) |
|
3 | 1 2 | ax-mp | |- CCfld e. _V |