Step |
Hyp |
Ref |
Expression |
1 |
|
infcvg.1 |
|
2 |
|
infcvg.2 |
|
3 |
|
infcvg.3 |
|
4 |
|
infcvg.4 |
|
5 |
2
|
renegcld |
|
6 |
|
eleq1 |
|
7 |
5 6
|
syl5ibrcom |
|
8 |
7
|
rexlimiv |
|
9 |
8
|
abssi |
|
10 |
1 9
|
eqsstri |
|
11 |
|
eqid |
|
12 |
11
|
nfth |
|
13 |
|
csbeq1a |
|
14 |
13
|
negeqd |
|
15 |
14
|
eqeq2d |
|
16 |
12 15
|
rspce |
|
17 |
3 11 16
|
mp2an |
|
18 |
|
negex |
|
19 |
|
nfcsb1v |
|
20 |
19
|
nfneg |
|
21 |
20
|
nfeq2 |
|
22 |
|
eqeq1 |
|
23 |
21 22
|
rexbid |
|
24 |
18 23
|
elab |
|
25 |
17 24
|
mpbir |
|
26 |
25 1
|
eleqtrri |
|
27 |
26
|
ne0ii |
|
28 |
10 27 4
|
3pm3.2i |
|