| Step |
Hyp |
Ref |
Expression |
| 1 |
|
prmidlval.1 |
|
| 2 |
|
prmidlval.2 |
|
| 3 |
|
df-prmidl |
|
| 4 |
|
fveq2 |
|
| 5 |
|
fveq2 |
|
| 6 |
5 1
|
eqtr4di |
|
| 7 |
6
|
neeq2d |
|
| 8 |
|
fveq2 |
|
| 9 |
8 2
|
eqtr4di |
|
| 10 |
9
|
oveqd |
|
| 11 |
10
|
eleq1d |
|
| 12 |
11
|
2ralbidv |
|
| 13 |
12
|
imbi1d |
|
| 14 |
4 13
|
raleqbidv |
|
| 15 |
4 14
|
raleqbidv |
|
| 16 |
7 15
|
anbi12d |
|
| 17 |
4 16
|
rabeqbidv |
|
| 18 |
|
id |
|
| 19 |
|
eqid |
|
| 20 |
|
fvexd |
|
| 21 |
19 20
|
rabexd |
|
| 22 |
3 17 18 21
|
fvmptd3 |
|