Step |
Hyp |
Ref |
Expression |
1 |
|
uvcfval.u |
|
2 |
|
uvcfval.o |
|
3 |
|
uvcfval.z |
|
4 |
|
elex |
|
5 |
|
elex |
|
6 |
|
df-uvc |
|
7 |
6
|
a1i |
|
8 |
|
simpr |
|
9 |
|
fveq2 |
|
10 |
9 2
|
eqtr4di |
|
11 |
|
fveq2 |
|
12 |
11 3
|
eqtr4di |
|
13 |
10 12
|
ifeq12d |
|
14 |
13
|
adantr |
|
15 |
8 14
|
mpteq12dv |
|
16 |
8 15
|
mpteq12dv |
|
17 |
16
|
adantl |
|
18 |
|
simpl |
|
19 |
|
simpr |
|
20 |
|
mptexg |
|
21 |
20
|
adantl |
|
22 |
7 17 18 19 21
|
ovmpod |
|
23 |
4 5 22
|
syl2an |
|
24 |
1 23
|
syl5eq |
|