Description: 2 is a nonzero real number. (Contributed by David A. Wheeler, 8-Dec-2018)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | 2rene0 | |- ( 2 e. RR /\ 2 =/= 0 ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2re | |- 2 e. RR |
|
| 2 | 2ne0 | |- 2 =/= 0 |
|
| 3 | 1 2 | pm3.2i | |- ( 2 e. RR /\ 2 =/= 0 ) |