| Step |
Hyp |
Ref |
Expression |
| 1 |
|
mdegcl.d |
|
| 2 |
|
mdegcl.p |
|
| 3 |
|
mdegcl.b |
|
| 4 |
|
eqid |
|
| 5 |
|
eqid |
|
| 6 |
|
eqid |
|
| 7 |
1 2 3 4 5 6
|
mdegval |
|
| 8 |
|
supeq1 |
|
| 9 |
8
|
eleq1d |
|
| 10 |
|
imassrn |
|
| 11 |
5 6
|
tdeglem1 |
|
| 12 |
|
frn |
|
| 13 |
11 12
|
mp1i |
|
| 14 |
10 13
|
sstrid |
|
| 15 |
14
|
adantr |
|
| 16 |
|
ssun1 |
|
| 17 |
15 16
|
sstrdi |
|
| 18 |
|
ffun |
|
| 19 |
11 18
|
mp1i |
|
| 20 |
|
id |
|
| 21 |
2 3 4 20
|
mplelsfi |
|
| 22 |
21
|
fsuppimpd |
|
| 23 |
|
imafi |
|
| 24 |
19 22 23
|
syl2anc |
|
| 25 |
24
|
adantr |
|
| 26 |
|
simpr |
|
| 27 |
|
nn0ssre |
|
| 28 |
|
ressxr |
|
| 29 |
27 28
|
sstri |
|
| 30 |
15 29
|
sstrdi |
|
| 31 |
|
xrltso |
|
| 32 |
|
fisupcl |
|
| 33 |
31 32
|
mpan |
|
| 34 |
25 26 30 33
|
syl3anc |
|
| 35 |
17 34
|
sseldd |
|
| 36 |
|
xrsup0 |
|
| 37 |
|
ssun2 |
|
| 38 |
|
mnfxr |
|
| 39 |
38
|
elexi |
|
| 40 |
39
|
snid |
|
| 41 |
37 40
|
sselii |
|
| 42 |
36 41
|
eqeltri |
|
| 43 |
42
|
a1i |
|
| 44 |
9 35 43
|
pm2.61ne |
|
| 45 |
7 44
|
eqeltrd |
|