Step |
Hyp |
Ref |
Expression |
1 |
|
smfsssmf.r |
|
2 |
|
smfsssmf.s |
|
3 |
|
smfsssmf.i |
|
4 |
|
smfsssmf.f |
|
5 |
|
nfv |
|
6 |
|
eqid |
|
7 |
1 4 6
|
smfdmss |
|
8 |
3
|
unissd |
|
9 |
7 8
|
sstrd |
|
10 |
1 4 6
|
smff |
|
11 |
|
ssrest |
|
12 |
2 3 11
|
syl2anc |
|
13 |
12
|
adantr |
|
14 |
1
|
adantr |
|
15 |
4
|
adantr |
|
16 |
|
simpr |
|
17 |
14 15 6 16
|
smfpreimalt |
|
18 |
13 17
|
sseldd |
|
19 |
5 2 9 10 18
|
issmfd |
|