Step | Hyp | Ref
| Expression |
1 | | 3an6 1262 |
. . 3
Nn Nn Nn Nn 1
1
Nn Nn 1
Nn Nn 1
|
2 | | eeanv 1913 |
. . . 4
1
1 1
1
|
3 | 2 | 3anbi3i 1144 |
. . 3
Nn Nn Nn Nn 1
1
Nn Nn Nn Nn 1
1
|
4 | | df-sfin 4447 |
. . . 4
Sfin Nn Nn 1
|
5 | | df-sfin 4447 |
. . . 4
Sfin Nn Nn 1
|
6 | 4, 5 | anbi12i 678 |
. . 3
Sfin
Sfin Nn Nn 1
Nn Nn 1
|
7 | 1, 3, 6 | 3bitr4ri 269 |
. 2
Sfin
Sfin Nn Nn Nn Nn 1
1
|
8 | | simpllr 735 |
. . . . . . 7
Nn Nn Nn Nn 1
1 Nn |
9 | | simprll 738 |
. . . . . . 7
Nn Nn Nn Nn 1
1 1 |
10 | | simprrl 740 |
. . . . . . 7
Nn Nn Nn Nn 1
1 1
|
11 | | ncfinlower 4484 |
. . . . . . 7
Nn 1 1 Nn
|
12 | 8, 9, 10, 11 | syl3anc 1182 |
. . . . . 6
Nn Nn Nn Nn 1
1 Nn
|
13 | | nnpweq 4524 |
. . . . . . . . . 10
Nn
Nn
|
14 | 13 | 3expb 1152 |
. . . . . . . . 9
Nn
Nn |
15 | | simp1rl 1020 |
. . . . . . . . . . . . . 14
Nn Nn Nn Nn 1
1
Nn
Nn |
16 | | simp3l 983 |
. . . . . . . . . . . . . 14
Nn Nn Nn Nn 1
1
Nn
Nn |
17 | | simp2lr 1023 |
. . . . . . . . . . . . . 14
Nn Nn Nn Nn 1
1
Nn
|
18 | | simp3rl 1028 |
. . . . . . . . . . . . . 14
Nn Nn Nn Nn 1
1
Nn
|
19 | | nnceleq 4431 |
. . . . . . . . . . . . . 14
Nn Nn
|
20 | 15, 16, 17, 18, 19 | syl22anc 1183 |
. . . . . . . . . . . . 13
Nn Nn Nn Nn 1
1
Nn
|
21 | | simp1rr 1021 |
. . . . . . . . . . . . . 14
Nn Nn Nn Nn 1
1
Nn
Nn |
22 | | simp2rr 1025 |
. . . . . . . . . . . . . 14
Nn Nn Nn Nn 1
1
Nn
|
23 | | simp3rr 1029 |
. . . . . . . . . . . . . 14
Nn Nn Nn Nn 1
1
Nn
|
24 | | nnceleq 4431 |
. . . . . . . . . . . . . 14
Nn Nn
|
25 | 21, 16, 22, 23, 24 | syl22anc 1183 |
. . . . . . . . . . . . 13
Nn Nn Nn Nn 1
1
Nn
|
26 | 20, 25 | eqtr4d 2388 |
. . . . . . . . . . . 12
Nn Nn Nn Nn 1
1
Nn
|
27 | 26 | 3expa 1151 |
. . . . . . . . . . 11
Nn Nn Nn Nn 1
1 Nn
|
28 | 27 | expr 598 |
. . . . . . . . . 10
Nn Nn Nn Nn 1
1
Nn |
29 | 28 | rexlimdva 2739 |
. . . . . . . . 9
Nn Nn Nn Nn 1
1 Nn
|
30 | 14, 29 | syl5 28 |
. . . . . . . 8
Nn Nn Nn Nn 1
1 Nn
|
31 | 30 | exp3a 425 |
. . . . . . 7
Nn Nn Nn Nn 1
1 Nn |
32 | 31 | rexlimdv 2738 |
. . . . . 6
Nn Nn Nn Nn 1
1 Nn |
33 | 12, 32 | mpd 14 |
. . . . 5
Nn Nn Nn Nn 1
1 |
34 | 33 | ex 423 |
. . . 4
Nn Nn Nn Nn 1
1
|
35 | 34 | exlimdvv 1637 |
. . 3
Nn Nn Nn Nn 1
1
|
36 | 35 | 3impia 1148 |
. 2
Nn Nn Nn Nn 1
1
|
37 | 7, 36 | sylbi 187 |
1
Sfin
Sfin |