Step |
Hyp |
Ref |
Expression |
1 |
|
elintfv.1 |
|
2 |
1
|
elint |
|
3 |
|
fvelimab |
|
4 |
3
|
imbi1d |
|
5 |
|
r19.23v |
|
6 |
4 5
|
bitr4di |
|
7 |
6
|
albidv |
|
8 |
|
ralcom4 |
|
9 |
|
eqcom |
|
10 |
9
|
imbi1i |
|
11 |
10
|
albii |
|
12 |
|
fvex |
|
13 |
|
eleq2 |
|
14 |
12 13
|
ceqsalv |
|
15 |
11 14
|
bitri |
|
16 |
15
|
ralbii |
|
17 |
8 16
|
bitr3i |
|
18 |
7 17
|
syl6bb |
|
19 |
2 18
|
syl5bb |
|