Step |
Hyp |
Ref |
Expression |
1 |
|
resf1st.f |
|
2 |
|
resf1st.h |
|
3 |
|
resf1st.s |
|
4 |
|
resf2nd.x |
|
5 |
|
resf2nd.y |
|
6 |
|
df-ov |
|
7 |
1 2
|
resfval |
|
8 |
7
|
fveq2d |
|
9 |
|
fvex |
|
10 |
9
|
resex |
|
11 |
|
dmexg |
|
12 |
|
mptexg |
|
13 |
2 11 12
|
3syl |
|
14 |
|
op2ndg |
|
15 |
10 13 14
|
sylancr |
|
16 |
8 15
|
eqtrd |
|
17 |
|
simpr |
|
18 |
17
|
fveq2d |
|
19 |
|
df-ov |
|
20 |
18 19
|
eqtr4di |
|
21 |
17
|
fveq2d |
|
22 |
|
df-ov |
|
23 |
21 22
|
eqtr4di |
|
24 |
20 23
|
reseq12d |
|
25 |
4 5
|
opelxpd |
|
26 |
3
|
fndmd |
|
27 |
25 26
|
eleqtrrd |
|
28 |
|
ovex |
|
29 |
28
|
resex |
|
30 |
29
|
a1i |
|
31 |
16 24 27 30
|
fvmptd |
|
32 |
6 31
|
syl5eq |
|