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| Description: Lemma for bcth 7982.
For any |
| Ref | Expression |
|---|---|
| bcthlem2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | breq2 2618 |
. . . . . . 7
| |
| 2 | fveq2 3715 |
. . . . . . . . 9
| |
| 3 | 2 | opreq1d 3966 |
. . . . . . . 8
|
| 4 | 3 | breq1d 2624 |
. . . . . . 7
|
| 5 | 1, 4 | imbi12d 625 |
. . . . . 6
|
| 6 | 5 | rcla4v 1869 |
. . . . 5
|
| 7 | 6 | ad2antlr 405 |
. . . 4
|
| 8 | nnret 5885 |
. . . . . . . 8
| |
| 9 | leidt 5512 |
. . . . . . . 8
| |
| 10 | 8, 9 | syl 10 |
. . . . . . 7
|
| 11 | 10 | ad2antlr 405 |
. . . . . 6
|
| 12 | pm2.27 62 |
. . . . . 6
| |
| 13 | 11, 12 | syl 10 |
. . . . 5
|
| 14 | breq2 2618 |
. . . . . . . . 9
| |
| 15 | fveq2 3715 |
. . . . . . . . . . 11
| |
| 16 | 15 | opreq1d 3966 |
. . . . . . . . . 10
|
| 17 | 16 | breq1d 2624 |
. . . . . . . . 9
|
| 18 | 14, 17 | anbi12d 627 |
. . . . . . . 8
|
| 19 | 18 | rcla4ev 1873 |
. . . . . . 7
|
| 20 | simplr 413 |
. . . . . . . 8
| |
| 21 | 20 | adantr 389 |
. . . . . . 7
|
| 22 | id 59 |
. . . . . . . 8
| |
| 23 | 22 | adantll 392 |
. . . . . . 7
|
| 24 | 19, 21, 23 | sylanc 471 |
. . . . . 6
|
| 25 | 24 | ex 373 |
. . . . 5
|
| 26 | 13, 25 | syld 27 |
. . . 4
|
| 27 | 7, 26 | syld 27 |
. . 3
|
| 28 | peano2nn 5891 |
. . . . . 6
| |
| 29 | breq2 2618 |
. . . . . . . 8
| |
| 30 | fveq2 3715 |
. . . . . . . . . 10
| |
| 31 | 30 | opreq1d 3966 |
. . . . . . . . 9
|
| 32 | 31 | breq1d 2624 |
. . . . . . . 8
|
| 33 | 29, 32 | imbi12d 625 |
. . . . . . 7
|
| 34 | 33 | rcla4v 1869 |
. . . . . 6
|
| 35 | 28, 34 | syl 10 |
. . . . 5
|
| 36 | 35 | ad2antrr 404 |
. . . 4
|
| 37 | nnret 5885 |
. . . . . . . . . 10
| |
| 38 | lep1t 5776 |
. . . . . . . . . 10
| |
| 39 | 37, 38 | syl 10 |
. . . . . . . . 9
|
| 40 | 39 | adantr 389 |
. . . . . . . 8
|
| 41 | letrt 5506 |
. . . . . . . . 9
| |
| 42 | 8 | adantl 388 |
. . . . . . . . 9
|
| 43 | 37 | adantr 389 |
. . . . . . . . 9
|
| 44 | peano2re 5416 |
. . . . . . . . . . 11
| |
| 45 | 37, 44 | syl 10 |
. . . . . . . . . 10
|
| 46 | 45 | adantr 389 |
. . . . . . . . 9
|
| 47 | 41, 42, 43, 46 | syl3anc 857 |
. . . . . . . 8
|
| 48 | 40, 47 | mpan2d 701 |
. . . . . . 7
|
| 49 | 48 | imp 350 |
. . . . . 6
|
| 50 | pm2.27 62 |
. . . . . 6
| |
| 51 | 49, 50 | syl 10 |
. . . . 5
|
| 52 | breq2 2618 |
. . . . . . . . 9
| |
| 53 | fveq2 3715 |
. . . . . . . . . . 11
|