Step |
Hyp |
Ref |
Expression |
1 |
|
fveq2 |
|
2 |
|
ef0 |
|
3 |
1 2
|
eqtrdi |
|
4 |
3
|
eleq1d |
|
5 |
|
isppw2 |
|
6 |
|
vmappw |
|
7 |
6
|
fveq2d |
|
8 |
|
prmnn |
|
9 |
8
|
nnrpd |
|
10 |
9
|
reeflogd |
|
11 |
10 8
|
eqeltrd |
|
12 |
11
|
adantr |
|
13 |
7 12
|
eqeltrd |
|
14 |
|
fveq2 |
|
15 |
14
|
fveq2d |
|
16 |
15
|
eleq1d |
|
17 |
13 16
|
syl5ibrcom |
|
18 |
17
|
rexlimivv |
|
19 |
5 18
|
syl6bi |
|
20 |
19
|
imp |
|
21 |
|
1nn |
|
22 |
21
|
a1i |
|
23 |
4 20 22
|
pm2.61ne |
|