Step |
Hyp |
Ref |
Expression |
1 |
|
islindf.b |
|
2 |
|
islindf.v |
|
3 |
|
islindf.k |
|
4 |
|
islindf.s |
|
5 |
|
islindf.n |
|
6 |
|
islindf.z |
|
7 |
|
simp1 |
|
8 |
|
simp3 |
|
9 |
|
simp2 |
|
10 |
|
fex |
|
11 |
8 9 10
|
syl2anc |
|
12 |
1 2 3 4 5 6
|
islindf |
|
13 |
7 11 12
|
syl2anc |
|
14 |
|
ffdm |
|
15 |
14
|
simpld |
|
16 |
15
|
3ad2ant3 |
|
17 |
16
|
biantrurd |
|
18 |
|
fdm |
|
19 |
18
|
3ad2ant3 |
|
20 |
19
|
difeq1d |
|
21 |
20
|
imaeq2d |
|
22 |
21
|
fveq2d |
|
23 |
22
|
eleq2d |
|
24 |
23
|
notbid |
|
25 |
24
|
ralbidv |
|
26 |
19 25
|
raleqbidv |
|
27 |
13 17 26
|
3bitr2d |
|