Step |
Hyp |
Ref |
Expression |
1 |
|
pjinvar.1 |
|
2 |
|
pjinvar.2 |
|
3 |
|
pjinvar.3 |
|
4 |
3
|
fveq1i |
|
5 |
|
ffvelrn |
|
6 |
|
pjid |
|
7 |
2 5 6
|
sylancr |
|
8 |
4 7
|
syl5req |
|
9 |
|
fvco3 |
|
10 |
8 9
|
eqtr4d |
|
11 |
10
|
ralrimiva |
|
12 |
2
|
pjfoi |
|
13 |
|
fof |
|
14 |
12 13
|
ax-mp |
|
15 |
3
|
feq1i |
|
16 |
14 15
|
mpbir |
|
17 |
2
|
chssii |
|
18 |
|
fss |
|
19 |
16 17 18
|
mp2an |
|
20 |
1 19
|
hocofni |
|
21 |
1 19
|
hocofi |
|
22 |
19 21
|
hocofni |
|
23 |
|
eqfnfv |
|
24 |
20 22 23
|
mp2an |
|
25 |
11 24
|
sylibr |
|
26 |
|
fco |
|
27 |
16 21 26
|
mp2an |
|
28 |
|
feq1 |
|
29 |
27 28
|
mpbiri |
|
30 |
25 29
|
impbii |
|