Step |
Hyp |
Ref |
Expression |
1 |
|
fcfval |
|
2 |
1
|
eleq2d |
|
3 |
|
simp1 |
|
4 |
|
toponmax |
|
5 |
|
filfbas |
|
6 |
|
id |
|
7 |
|
fmfil |
|
8 |
4 5 6 7
|
syl3an |
|
9 |
|
fclsopn |
|
10 |
3 8 9
|
syl2anc |
|
11 |
|
simpll1 |
|
12 |
11 4
|
syl |
|
13 |
|
simpll2 |
|
14 |
13 5
|
syl |
|
15 |
|
simpll3 |
|
16 |
|
simpl2 |
|
17 |
|
fgfil |
|
18 |
16 17
|
syl |
|
19 |
18
|
eleq2d |
|
20 |
19
|
biimpar |
|
21 |
|
eqid |
|
22 |
21
|
imaelfm |
|
23 |
12 14 15 20 22
|
syl31anc |
|
24 |
|
ineq2 |
|
25 |
24
|
neeq1d |
|
26 |
25
|
rspcv |
|
27 |
23 26
|
syl |
|
28 |
27
|
ralrimdva |
|
29 |
|
elfm |
|
30 |
4 5 6 29
|
syl3an |
|
31 |
30
|
adantr |
|
32 |
31
|
simplbda |
|
33 |
|
r19.29r |
|
34 |
|
sslin |
|
35 |
|
ssn0 |
|
36 |
34 35
|
sylan |
|
37 |
36
|
rexlimivw |
|
38 |
33 37
|
syl |
|
39 |
38
|
ex |
|
40 |
32 39
|
syl |
|
41 |
40
|
ralrimdva |
|
42 |
28 41
|
impbid |
|
43 |
42
|
imbi2d |
|
44 |
43
|
ralbidva |
|
45 |
44
|
anbi2d |
|
46 |
2 10 45
|
3bitrd |
|