Step |
Hyp |
Ref |
Expression |
1 |
|
ip1i.1 |
|
2 |
|
ip1i.2 |
|
3 |
|
ip1i.4 |
|
4 |
|
ip1i.7 |
|
5 |
|
ip1i.9 |
|
6 |
|
ipasslem1.b |
|
7 |
|
elznn0nn |
|
8 |
1 2 3 4 5 6
|
ipasslem1 |
|
9 |
|
nnnn0 |
|
10 |
1 2 3 4 5 6
|
ipasslem2 |
|
11 |
9 10
|
sylan |
|
12 |
11
|
adantll |
|
13 |
|
recn |
|
14 |
13
|
negnegd |
|
15 |
14
|
oveq1d |
|
16 |
15
|
oveq1d |
|
17 |
16
|
ad2antrr |
|
18 |
14
|
oveq1d |
|
19 |
18
|
ad2antrr |
|
20 |
12 17 19
|
3eqtr3d |
|
21 |
8 20
|
jaoian |
|
22 |
7 21
|
sylanb |
|