Step |
Hyp |
Ref |
Expression |
1 |
|
simpl |
|
2 |
|
snssi |
|
3 |
2
|
adantl |
|
4 |
|
snnzg |
|
5 |
4
|
adantl |
|
6 |
|
snex |
|
7 |
6
|
frc |
|
8 |
1 3 5 7
|
syl3anc |
|
9 |
|
rabeq0 |
|
10 |
|
breq2 |
|
11 |
10
|
notbid |
|
12 |
11
|
ralbidv |
|
13 |
9 12
|
syl5bb |
|
14 |
13
|
rexsng |
|
15 |
|
breq1 |
|
16 |
15
|
notbid |
|
17 |
16
|
ralsng |
|
18 |
14 17
|
bitrd |
|
19 |
18
|
adantl |
|
20 |
8 19
|
mpbid |
|