Step |
Hyp |
Ref |
Expression |
1 |
|
off2.1 |
|
2 |
|
off2.2 |
|
3 |
|
off2.3 |
|
4 |
|
off2.4 |
|
5 |
|
off2.5 |
|
6 |
|
off2.6 |
|
7 |
2
|
ffnd |
|
8 |
3
|
ffnd |
|
9 |
|
eqid |
|
10 |
|
eqidd |
|
11 |
|
eqidd |
|
12 |
7 8 4 5 9 10 11
|
offval |
|
13 |
6
|
mpteq1d |
|
14 |
12 13
|
eqtrd |
|
15 |
2
|
adantr |
|
16 |
|
inss1 |
|
17 |
6 16
|
eqsstrrdi |
|
18 |
17
|
sselda |
|
19 |
15 18
|
ffvelrnd |
|
20 |
3
|
adantr |
|
21 |
|
inss2 |
|
22 |
6 21
|
eqsstrrdi |
|
23 |
22
|
sselda |
|
24 |
20 23
|
ffvelrnd |
|
25 |
1
|
ralrimivva |
|
26 |
25
|
adantr |
|
27 |
|
ovrspc2v |
|
28 |
19 24 26 27
|
syl21anc |
|
29 |
14 28
|
fmpt3d |
|