Step |
Hyp |
Ref |
Expression |
1 |
|
eqid |
|
2 |
1
|
drsbn0 |
|
3 |
2
|
neneqd |
|
4 |
|
fvprc |
|
5 |
4
|
fveq2d |
|
6 |
|
base0 |
|
7 |
5 6
|
eqtr4di |
|
8 |
3 7
|
nsyl2 |
|
9 |
|
simp1 |
|
10 |
|
eqid |
|
11 |
1 10
|
isdrs |
|
12 |
|
eqid |
|
13 |
12
|
ipopos |
|
14 |
|
posprs |
|
15 |
13 14
|
mp1i |
|
16 |
|
id |
|
17 |
15 16
|
2thd |
|
18 |
12
|
ipobas |
|
19 |
|
neeq1 |
|
20 |
|
rexeq |
|
21 |
20
|
raleqbi1dv |
|
22 |
21
|
raleqbi1dv |
|
23 |
19 22
|
anbi12d |
|
24 |
18 23
|
syl |
|
25 |
|
simpll |
|
26 |
|
simplrl |
|
27 |
|
simpr |
|
28 |
12 10
|
ipole |
|
29 |
25 26 27 28
|
syl3anc |
|
30 |
|
simplrr |
|
31 |
12 10
|
ipole |
|
32 |
25 30 27 31
|
syl3anc |
|
33 |
29 32
|
anbi12d |
|
34 |
|
unss |
|
35 |
33 34
|
bitrdi |
|
36 |
35
|
rexbidva |
|
37 |
36
|
2ralbidva |
|
38 |
37
|
anbi2d |
|
39 |
24 38
|
bitr3d |
|
40 |
17 39
|
anbi12d |
|
41 |
|
3anass |
|
42 |
|
3anass |
|
43 |
40 41 42
|
3bitr4g |
|
44 |
11 43
|
syl5bb |
|
45 |
8 9 44
|
pm5.21nii |
|