Step |
Hyp |
Ref |
Expression |
1 |
|
bnj1413.1 |
|
2 |
|
bnj1148 |
|
3 |
|
bnj893 |
|
4 |
|
simp1 |
|
5 |
|
bnj1127 |
|
6 |
5
|
3ad2ant3 |
|
7 |
|
bnj893 |
|
8 |
4 6 7
|
syl2anc |
|
9 |
8
|
3expia |
|
10 |
9
|
ralrimiv |
|
11 |
|
iunexg |
|
12 |
3 10 11
|
syl2anc |
|
13 |
2 12
|
bnj1149 |
|
14 |
|
bnj906 |
|
15 |
|
iunss1 |
|
16 |
|
unss2 |
|
17 |
14 15 16
|
3syl |
|
18 |
1 17
|
eqsstrid |
|
19 |
13 18
|
ssexd |
|