Step |
Hyp |
Ref |
Expression |
1 |
|
ltrnset.l |
|
2 |
|
ltrnset.j |
|
3 |
|
ltrnset.m |
|
4 |
|
ltrnset.a |
|
5 |
|
ltrnset.h |
|
6 |
|
elex |
|
7 |
|
fveq2 |
|
8 |
7 5
|
eqtr4di |
|
9 |
|
fveq2 |
|
10 |
9
|
fveq1d |
|
11 |
|
fveq2 |
|
12 |
11 4
|
eqtr4di |
|
13 |
|
fveq2 |
|
14 |
13 1
|
eqtr4di |
|
15 |
14
|
breqd |
|
16 |
15
|
notbid |
|
17 |
14
|
breqd |
|
18 |
17
|
notbid |
|
19 |
16 18
|
anbi12d |
|
20 |
|
fveq2 |
|
21 |
20 3
|
eqtr4di |
|
22 |
|
fveq2 |
|
23 |
22 2
|
eqtr4di |
|
24 |
23
|
oveqd |
|
25 |
|
eqidd |
|
26 |
21 24 25
|
oveq123d |
|
27 |
23
|
oveqd |
|
28 |
21 27 25
|
oveq123d |
|
29 |
26 28
|
eqeq12d |
|
30 |
19 29
|
imbi12d |
|
31 |
12 30
|
raleqbidv |
|
32 |
12 31
|
raleqbidv |
|
33 |
10 32
|
rabeqbidv |
|
34 |
8 33
|
mpteq12dv |
|
35 |
|
df-ltrn |
|
36 |
34 35 5
|
mptfvmpt |
|
37 |
6 36
|
syl |
|