Description: Range of the elements of the filter base generated by the metric D . (Contributed by Thierry Arnoux, 28-Nov-2017) (Revised by Thierry Arnoux, 11-Feb-2018)
Ref | Expression | ||
---|---|---|---|
Hypothesis | metust.1 | |
|
Assertion | metustss | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | metust.1 | |
|
2 | cnvimass | |
|
3 | psmetf | |
|
4 | 2 3 | fssdm | |
5 | 4 | ad2antrr | |
6 | cnvexg | |
|
7 | imaexg | |
|
8 | elpwg | |
|
9 | 6 7 8 | 3syl | |
10 | 9 | ad2antrr | |
11 | 5 10 | mpbird | |
12 | 11 | ralrimiva | |
13 | eqid | |
|
14 | 13 | rnmptss | |
15 | 12 14 | syl | |
16 | 1 15 | eqsstrid | |
17 | simpr | |
|
18 | 16 17 | sseldd | |
19 | 18 | elpwid | |