Step |
Hyp |
Ref |
Expression |
1 |
|
alexsubALT.1 |
|
2 |
|
cmptop |
|
3 |
|
fitop |
|
4 |
3
|
fveq2d |
|
5 |
|
tgtop |
|
6 |
4 5
|
eqtr2d |
|
7 |
2 6
|
syl |
|
8 |
|
velpw |
|
9 |
1
|
cmpcov |
|
10 |
9
|
3exp |
|
11 |
8 10
|
biimtrid |
|
12 |
11
|
ralrimiv |
|
13 |
|
2fveq3 |
|
14 |
13
|
eqeq2d |
|
15 |
|
pweq |
|
16 |
15
|
raleqdv |
|
17 |
14 16
|
anbi12d |
|
18 |
17
|
spcegv |
|
19 |
7 12 18
|
mp2and |
|