Step |
Hyp |
Ref |
Expression |
1 |
|
dfxlim2.k |
|
2 |
|
dfxlim2.m |
|
3 |
|
dfxlim2.z |
|
4 |
|
dfxlim2.f |
|
5 |
2 3 4
|
dfxlim2v |
|
6 |
|
biid |
|
7 |
|
breq2 |
|
8 |
7
|
rexralbidv |
|
9 |
|
fveq2 |
|
10 |
9
|
raleqdv |
|
11 |
|
nfcv |
|
12 |
1 11
|
nffv |
|
13 |
|
nfcv |
|
14 |
|
nfcv |
|
15 |
12 13 14
|
nfbr |
|
16 |
|
nfv |
|
17 |
|
fveq2 |
|
18 |
17
|
breq1d |
|
19 |
15 16 18
|
cbvralw |
|
20 |
10 19
|
syl6bb |
|
21 |
20
|
cbvrexvw |
|
22 |
8 21
|
syl6bb |
|
23 |
22
|
cbvralvw |
|
24 |
23
|
anbi2i |
|
25 |
|
breq1 |
|
26 |
25
|
rexralbidv |
|
27 |
9
|
raleqdv |
|
28 |
14 13 12
|
nfbr |
|
29 |
|
nfv |
|
30 |
17
|
breq2d |
|
31 |
28 29 30
|
cbvralw |
|
32 |
27 31
|
syl6bb |
|
33 |
32
|
cbvrexvw |
|
34 |
26 33
|
syl6bb |
|
35 |
34
|
cbvralvw |
|
36 |
35
|
anbi2i |
|
37 |
6 24 36
|
3orbi123i |
|
38 |
5 37
|
syl6bb |
|