Step |
Hyp |
Ref |
Expression |
1 |
|
eqlkr.d |
|
2 |
|
eqlkr.k |
|
3 |
|
eqlkr.t |
|
4 |
|
eqlkr.v |
|
5 |
|
eqlkr.f |
|
6 |
|
eqlkr.l |
|
7 |
1 2 3 4 5 6
|
eqlkr |
|
8 |
4
|
fvexi |
|
9 |
8
|
a1i |
|
10 |
|
simpl1 |
|
11 |
|
simpl2l |
|
12 |
1 2 4 5
|
lflf |
|
13 |
10 11 12
|
syl2anc |
|
14 |
13
|
ffnd |
|
15 |
|
vex |
|
16 |
|
fnconstg |
|
17 |
15 16
|
mp1i |
|
18 |
|
simpl2r |
|
19 |
1 2 4 5
|
lflf |
|
20 |
10 18 19
|
syl2anc |
|
21 |
20
|
ffnd |
|
22 |
|
eqidd |
|
23 |
15
|
fvconst2 |
|
24 |
23
|
adantl |
|
25 |
9 14 17 21 22 24
|
offveqb |
|
26 |
25
|
rexbidva |
|
27 |
7 26
|
mpbird |
|