Metamath Proof Explorer
Description: Topology component of the multiplication group. (Contributed by Mario
Carneiro, 5-Oct-2015)
|
|
Ref |
Expression |
|
Hypothesis |
mgpbas.1 |
|
|
Assertion |
mgptset |
|
Proof
Step |
Hyp |
Ref |
Expression |
1 |
|
mgpbas.1 |
|
2 |
|
df-tset |
|
3 |
|
9nn |
|
4 |
|
2re |
|
5 |
|
2lt9 |
|
6 |
4 5
|
gtneii |
|
7 |
1 2 3 6
|
mgplem |
|