Step |
Hyp |
Ref |
Expression |
1 |
|
pclfval.a |
|
2 |
|
pclfval.s |
|
3 |
|
pclfval.c |
|
4 |
|
elex |
|
5 |
|
fveq2 |
|
6 |
5 1
|
eqtr4di |
|
7 |
6
|
pweqd |
|
8 |
|
fveq2 |
|
9 |
8 2
|
eqtr4di |
|
10 |
9
|
rabeqdv |
|
11 |
10
|
inteqd |
|
12 |
7 11
|
mpteq12dv |
|
13 |
|
df-pclN |
|
14 |
1
|
fvexi |
|
15 |
14
|
pwex |
|
16 |
15
|
mptex |
|
17 |
12 13 16
|
fvmpt |
|
18 |
3 17
|
syl5eq |
|
19 |
4 18
|
syl |
|