Step |
Hyp |
Ref |
Expression |
1 |
|
sitgval.b |
|
2 |
|
sitgval.j |
|
3 |
|
sitgval.s |
|
4 |
|
sitgval.0 |
|
5 |
|
sitgval.x |
|
6 |
|
sitgval.h |
|
7 |
|
sitgval.1 |
|
8 |
|
sitgval.2 |
|
9 |
7
|
elexd |
|
10 |
|
2fveq3 |
|
11 |
2
|
fveq2i |
|
12 |
3 11
|
eqtri |
|
13 |
10 12
|
eqtr4di |
|
14 |
13
|
oveq2d |
|
15 |
|
fveq2 |
|
16 |
15 4
|
eqtr4di |
|
17 |
16
|
sneqd |
|
18 |
17
|
difeq2d |
|
19 |
18
|
raleqdv |
|
20 |
19
|
anbi2d |
|
21 |
14 20
|
rabeqbidv |
|
22 |
|
id |
|
23 |
17
|
difeq2d |
|
24 |
|
fveq2 |
|
25 |
24 5
|
eqtr4di |
|
26 |
|
2fveq3 |
|
27 |
26 6
|
eqtr4di |
|
28 |
27
|
fveq1d |
|
29 |
|
eqidd |
|
30 |
25 28 29
|
oveq123d |
|
31 |
23 30
|
mpteq12dv |
|
32 |
22 31
|
oveq12d |
|
33 |
21 32
|
mpteq12dv |
|
34 |
|
dmeq |
|
35 |
34
|
oveq1d |
|
36 |
|
fveq1 |
|
37 |
36
|
eleq1d |
|
38 |
37
|
ralbidv |
|
39 |
38
|
anbi2d |
|
40 |
35 39
|
rabeqbidv |
|
41 |
|
simpl |
|
42 |
41
|
fveq1d |
|
43 |
42
|
fveq2d |
|
44 |
43
|
oveq1d |
|
45 |
44
|
mpteq2dva |
|
46 |
45
|
oveq2d |
|
47 |
40 46
|
mpteq12dv |
|
48 |
|
df-sitg |
|
49 |
|
ovex |
|
50 |
49
|
mptrabex |
|
51 |
33 47 48 50
|
ovmpo |
|
52 |
9 8 51
|
syl2anc |
|