Metamath Proof Explorer
Description: Any set dominates the empty set. (Contributed by NM, 26-Oct-2003)
(Revised by Mario Carneiro, 26-Apr-2015)
|
|
Ref |
Expression |
|
Hypothesis |
0sdom.1 |
|
|
Assertion |
0dom |
|
Proof
| Step |
Hyp |
Ref |
Expression |
| 1 |
|
0sdom.1 |
|
| 2 |
|
0domg |
|
| 3 |
1 2
|
ax-mp |
|