Step |
Hyp |
Ref |
Expression |
1 |
|
abfmpel.1 |
|
2 |
|
abfmpel.2 |
|
3 |
|
abfmpel.3 |
|
4 |
2
|
csbex |
|
5 |
1
|
fvmpts |
|
6 |
4 5
|
mpan2 |
|
7 |
|
csbab |
|
8 |
6 7
|
eqtrdi |
|
9 |
8
|
eleq2d |
|
10 |
9
|
adantr |
|
11 |
|
simpl |
|
12 |
3
|
ancoms |
|
13 |
12
|
adantll |
|
14 |
11 13
|
sbcied |
|
15 |
14
|
ex |
|
16 |
15
|
alrimiv |
|
17 |
|
elabgt |
|
18 |
16 17
|
sylan2 |
|
19 |
18
|
ancoms |
|
20 |
10 19
|
bitrd |
|