Step |
Hyp |
Ref |
Expression |
1 |
|
normlem1.1 |
|
2 |
|
normlem1.2 |
|
3 |
|
normlem1.3 |
|
4 |
|
normlem7.4 |
|
5 |
|
eqid |
|
6 |
1 2 3 5
|
normlem2 |
|
7 |
1
|
cjcli |
|
8 |
2 3
|
hicli |
|
9 |
7 8
|
mulcli |
|
10 |
3 2
|
hicli |
|
11 |
1 10
|
mulcli |
|
12 |
9 11
|
addcli |
|
13 |
12
|
negrebi |
|
14 |
6 13
|
mpbi |
|
15 |
14
|
leabsi |
|
16 |
12
|
absnegi |
|
17 |
15 16
|
breqtrri |
|
18 |
|
eqid |
|
19 |
|
eqid |
|
20 |
1 2 3 5 18 19 4
|
normlem6 |
|
21 |
12
|
negcli |
|
22 |
21
|
abscli |
|
23 |
|
2re |
|
24 |
|
hiidge0 |
|
25 |
|
hiidrcl |
|
26 |
3 25
|
ax-mp |
|
27 |
26
|
sqrtcli |
|
28 |
3 24 27
|
mp2b |
|
29 |
|
hiidge0 |
|
30 |
|
hiidrcl |
|
31 |
2 30
|
ax-mp |
|
32 |
31
|
sqrtcli |
|
33 |
2 29 32
|
mp2b |
|
34 |
28 33
|
remulcli |
|
35 |
23 34
|
remulcli |
|
36 |
14 22 35
|
letri |
|
37 |
17 20 36
|
mp2an |
|