Step |
Hyp |
Ref |
Expression |
1 |
|
diagval.l |
|
2 |
|
diagval.c |
|
3 |
|
diagval.d |
|
4 |
|
diag11.a |
|
5 |
|
diag11.c |
|
6 |
|
diag11.k |
|
7 |
|
diag11.b |
|
8 |
|
diag11.y |
|
9 |
1 2 3
|
diagval |
|
10 |
9
|
fveq2d |
|
11 |
10
|
fveq1d |
|
12 |
6 11
|
syl5eq |
|
13 |
12
|
fveq2d |
|
14 |
13
|
fveq1d |
|
15 |
|
eqid |
|
16 |
|
eqid |
|
17 |
|
eqid |
|
18 |
16 2 3 17
|
1stfcl |
|
19 |
|
eqid |
|
20 |
15 4 2 3 18 7 5 19 8
|
curf11 |
|
21 |
|
df-ov |
|
22 |
16 4 7
|
xpcbas |
|
23 |
|
eqid |
|
24 |
5 8
|
opelxpd |
|
25 |
16 22 23 2 3 17 24
|
1stf1 |
|
26 |
21 25
|
syl5eq |
|
27 |
|
op1stg |
|
28 |
5 8 27
|
syl2anc |
|
29 |
26 28
|
eqtrd |
|
30 |
14 20 29
|
3eqtrd |
|