Step |
Hyp |
Ref |
Expression |
1 |
|
phop.2 |
|
2 |
|
phop.4 |
|
3 |
|
phop.6 |
|
4 |
|
phrel |
|
5 |
|
1st2nd |
|
6 |
4 5
|
mpan |
|
7 |
3
|
nmcvfval |
|
8 |
7
|
opeq2i |
|
9 |
|
phnv |
|
10 |
|
eqid |
|
11 |
10
|
nvvc |
|
12 |
|
vcrel |
|
13 |
|
1st2nd |
|
14 |
12 13
|
mpan |
|
15 |
1
|
vafval |
|
16 |
2
|
smfval |
|
17 |
15 16
|
opeq12i |
|
18 |
14 17
|
eqtr4di |
|
19 |
9 11 18
|
3syl |
|
20 |
19
|
opeq1d |
|
21 |
8 20
|
eqtr3id |
|
22 |
6 21
|
eqtrd |
|