This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.
Metamath Proof Explorer
Description: The set of reals is nonempty. (Contributed by Glauco Siliprandi, 23-Oct-2021)
|
|
Ref |
Expression |
|
Assertion |
ren0 |
|- RR =/= (/) |
Proof
| Step |
Hyp |
Ref |
Expression |
| 1 |
|
0re |
|- 0 e. RR |
| 2 |
1
|
ne0ii |
|- RR =/= (/) |