Proof of Theorem wfrlem14
Step | Hyp | Ref
| Expression |
1 | | wfrlem13.1 |
. . 3
|
2 | | wfrlem13.2 |
. . 3
Se |
3 | | wfrlem13.3 |
. . 3
wrecs |
4 | | wfrlem13.4 |
. . 3
|
5 | 1, 2, 3, 4 | wfrlem13 7427 |
. 2
|
6 | | elun 3753 |
. . . 4
|
7 | | velsn 4193 |
. . . . 5
|
8 | 7 | orbi2i 541 |
. . . 4
|
9 | 6, 8 | bitri 264 |
. . 3
|
10 | 1, 2, 3 | wfrlem12 7426 |
. . . . . . 7
|
11 | | fnfun 5988 |
. . . . . . . 8
|
12 | | ssun1 3776 |
. . . . . . . . . 10
|
13 | 12, 4 | sseqtr4i 3638 |
. . . . . . . . 9
|
14 | | funssfv 6209 |
. . . . . . . . . 10
|
15 | 3 | wfrdmcl 7423 |
. . . . . . . . . . . 12
|
16 | | fun2ssres 5931 |
. . . . . . . . . . . 12
|
17 | 15, 16 | syl3an3 1361 |
. . . . . . . . . . 11
|
18 | 17 | fveq2d 6195 |
. . . . . . . . . 10
|
19 | 14, 18 | eqeq12d 2637 |
. . . . . . . . 9
|
20 | 13, 19 | mp3an2 1412 |
. . . . . . . 8
|
21 | 11, 20 | sylan 488 |
. . . . . . 7
|
22 | 10, 21 | syl5ibr 236 |
. . . . . 6
|
23 | 22 | ex 450 |
. . . . 5
|
24 | 23 | pm2.43d 53 |
. . . 4
|
25 | | vsnid 4209 |
. . . . . . 7
|
26 | | elun2 3781 |
. . . . . . 7
|
27 | 25, 26 | ax-mp 5 |
. . . . . 6
|
28 | 4 | reseq1i 5392 |
. . . . . . . . . . . . 13
|
29 | | resundir 5411 |
. . . . . . . . . . . . 13
|
30 | | wefr 5104 |
. . . . . . . . . . . . . . . . 17
|
31 | 1, 30 | ax-mp 5 |
. . . . . . . . . . . . . . . 16
|
32 | | predfrirr 5709 |
. . . . . . . . . . . . . . . 16
|
33 | | ressnop0 6420 |
. . . . . . . . . . . . . . . 16
|
34 | 31, 32, 33 | mp2b 10 |
. . . . . . . . . . . . . . 15
|
35 | 34 | uneq2i 3764 |
. . . . . . . . . . . . . 14
|
36 | | un0 3967 |
. . . . . . . . . . . . . 14
|
37 | 35, 36 | eqtri 2644 |
. . . . . . . . . . . . 13
|
38 | 28, 29, 37 | 3eqtri 2648 |
. . . . . . . . . . . 12
|
39 | 38 | fveq2i 6194 |
. . . . . . . . . . 11
|
40 | 39 | opeq2i 4406 |
. . . . . . . . . 10
|
41 | | opex 4932 |
. . . . . . . . . . 11
|
42 | 41 | elsn 4192 |
. . . . . . . . . 10
|
43 | 40, 42 | mpbir 221 |
. . . . . . . . 9
|
44 | | elun2 3781 |
. . . . . . . . 9
|
45 | 43, 44 | ax-mp 5 |
. . . . . . . 8
|
46 | 45, 4 | eleqtrri 2700 |
. . . . . . 7
|
47 | | fnopfvb 6237 |
. . . . . . 7
|
48 | 46, 47 | mpbiri 248 |
. . . . . 6
|
49 | 27, 48 | mpan2 707 |
. . . . 5
|
50 | | fveq2 6191 |
. . . . . 6
|
51 | | predeq3 5684 |
. . . . . . . 8
|
52 | 51 | reseq2d 5396 |
. . . . . . 7
|
53 | 52 | fveq2d 6195 |
. . . . . 6
|
54 | 50, 53 | eqeq12d 2637 |
. . . . 5
|
55 | 49, 54 | syl5ibrcom 237 |
. . . 4
|
56 | 24, 55 | jaod 395 |
. . 3
|
57 | 9, 56 | syl5bi 232 |
. 2
|
58 | 5, 57 | syl 17 |
1
|