Step |
Hyp |
Ref |
Expression |
1 |
|
ssint |
|
2 |
|
df-ral |
|
3 |
1 2
|
bitri |
|
4 |
|
fvelimab |
|
5 |
4
|
imbi1d |
|
6 |
5
|
albidv |
|
7 |
|
ralcom4 |
|
8 |
|
eqcom |
|
9 |
8
|
imbi1i |
|
10 |
9
|
albii |
|
11 |
|
fvex |
|
12 |
|
sseq2 |
|
13 |
11 12
|
ceqsalv |
|
14 |
10 13
|
bitri |
|
15 |
14
|
ralbii |
|
16 |
|
r19.23v |
|
17 |
16
|
albii |
|
18 |
7 15 17
|
3bitr3ri |
|
19 |
6 18
|
bitrdi |
|
20 |
3 19
|
syl5bb |
|