Step |
Hyp |
Ref |
Expression |
1 |
|
eluni2 |
|
2 |
|
r1fnon |
|
3 |
|
fnfun |
|
4 |
2 3
|
ax-mp |
|
5 |
|
fvelima |
|
6 |
4 5
|
mpan |
|
7 |
|
r1tr |
|
8 |
|
treq |
|
9 |
7 8
|
mpbii |
|
10 |
9
|
rexlimivw |
|
11 |
|
trss |
|
12 |
6 10 11
|
3syl |
|
13 |
12
|
adantl |
|
14 |
|
tskr1om |
|
15 |
14
|
sseld |
|
16 |
|
tskss |
|
17 |
16
|
3exp |
|
18 |
17
|
adantr |
|
19 |
15 18
|
syld |
|
20 |
19
|
imp |
|
21 |
13 20
|
syld |
|
22 |
21
|
rexlimdva |
|
23 |
1 22
|
syl5bi |
|
24 |
23
|
ssrdv |
|