Description: A topology finer than a Hausdorff topology is Hausdorff. (Contributed by Mario Carneiro, 2-Mar-2015)
Ref | Expression | ||
---|---|---|---|
Hypothesis | t1sep.1 | |
|
Assertion | sshaus | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | t1sep.1 | |
|
2 | haustop | |
|
3 | cnhaus | |
|
4 | 1 2 3 | sshauslem | |