Step |
Hyp |
Ref |
Expression |
1 |
|
ralxp3f.1 |
|
2 |
|
ralxp3f.2 |
|
3 |
|
ralxp3f.3 |
|
4 |
|
ralxp3f.4 |
|
5 |
|
ralxp3f.5 |
|
6 |
|
df-ral |
|
7 |
|
el2xptp |
|
8 |
7
|
imbi1i |
|
9 |
3
|
r19.23 |
|
10 |
9
|
ralbii |
|
11 |
2
|
r19.23 |
|
12 |
10 11
|
bitri |
|
13 |
12
|
ralbii |
|
14 |
1
|
r19.23 |
|
15 |
13 14
|
bitr2i |
|
16 |
8 15
|
bitri |
|
17 |
16
|
albii |
|
18 |
|
ralcom4 |
|
19 |
|
ralcom4 |
|
20 |
|
ralcom4 |
|
21 |
|
otex |
|
22 |
4 21 5
|
ceqsal |
|
23 |
22
|
ralbii |
|
24 |
20 23
|
bitr3i |
|
25 |
24
|
ralbii |
|
26 |
19 25
|
bitr3i |
|
27 |
26
|
ralbii |
|
28 |
18 27
|
bitr3i |
|
29 |
6 17 28
|
3bitri |
|