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| Description: Lemma for efif1 8652. |
| Ref | Expression |
|---|---|
| efif1lem5.1 |
|
| efif1lem5.2 |
|
| Ref | Expression |
|---|---|
| efif1lem5 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | efif1lem5.1 |
. . . 4
| |
| 2 | 0re 5412 |
. . . . . . 7
| |
| 3 | pire 8596 |
. . . . . . 7
| |
| 4 | pipos 8597 |
. . . . . . 7
| |
| 5 | snunioo 6348 |
. . . . . . 7
| |
| 6 | 2, 3, 4, 5 | mp3an 913 |
. . . . . 6
|
| 7 | 6 | eleq2i 1530 |
. . . . 5
|
| 8 | elun 2163 |
. . . . 5
| |
| 9 | 7, 8 | bitr3 175 |
. . . 4
|
| 10 | 1, 9 | mpbi 189 |
. . 3
|
| 11 | elsnc2g 2426 |
. . . . 5
| |
| 12 | 2, 11 | ax-mp 7 |
. . . 4
|
| 13 | 12 | orbi1i 256 |
. . 3
|
| 14 | 10, 13 | mpbi 189 |
. 2
|
| 15 | efif1lem5.2 |
. . . 4
| |
| 16 | 2re 5926 |
. . . . . . . 8
| |
| 17 | 16, 3 | remulcl 5307 |
. . . . . . 7
|
| 18 | 1lt2 5975 |
. . . . . . . 8
| |
| 19 | ltmulgt12t 5803 |
. . . . . . . . 9
| |
| 20 | 3, 16, 4, 19 | mp3an 913 |
. . . . . . . 8
|
| 21 | 18, 20 | mpbi 189 |
. . . . . . 7
|
| 22 | snunioo 6348 |
. . . . . . 7
| |
| 23 | 3, 17, 21, 22 | mp3an 913 |
. . . . . 6
|
| 24 | 23 | eleq2i 1530 |
. . . . 5
|
| 25 | elun 2163 |
. . . . 5
| |
| 26 | 24, 25 | bitr3 175 |
. . . 4
|
| 27 | 15, 26 | mpbi 189 |
. . 3
|
| 28 | elsnc2g 2426 |
. . . . 5
| |
| 29 | 3, 28 | ax-mp 7 |
. . . 4
|
| 30 | 29 | orbi1i 256 |
. . 3
|
| 31 | 27, 30 | mpbi 189 |
. 2
|
| 32 | ax1ne0 5252 |
. . . . . 6
| |
| 33 | df-ne 1579 |
. . . . . 6
| |
| 34 | 32, 33 | mpbi 189 |
. . . . 5
|
| 35 | fveq2 3709 |
. . . . . . . 8
| |
| 36 | cos0 7388 |
. . . . . . . 8
| |
| 37 | 35, 36 | syl6eq 1515 |
. . . . . . 7
|
| 38 | fveq2 3709 |
. . . . . . . 8
| |
| 39 | cospi 8601 |
. . . . . . . 8
| |
| 40 | 38, 39 | syl6eq 1515 |
. . . . . . 7
|
| 41 | 37, 40 | eqeqan12d 1482 |
. . . . . 6
|
| 42 | ax1cn 5241 |
. . . . . . 7
| |
| 43 | 42 | eqneg 5760 |
. . . . . 6
|
| 44 | 41, 43 | syl6bb 534 |
. . . . 5
|
| 45 | 34, 44 | mtbiri 715 |
. . . 4
|
| 46 | orc 269 |
. . . . . 6
| |
| 47 | ianor 305 |
. . . . . 6
| |
| 48 | 46, 47 | sylibr 200 |
. . . . 5
|
| 49 | elico2t 6323 |
. . . . . . . . . 10
| |
| 50 | 2, 3, 49 | mp2an 695 |
. . . . . . . . 9
|
| 51 | 1, 50 | mpbi 189 |
. . . . . . . 8
|
| 52 | 51 | 3simp1i 789 |
. . . . . . 7
|
| 53 | elico2t 6323 |
. . . . . . . . . 10
| |
| 54 | 3, 17, 53 | mp2an 695 |
. . . . . . . . 9
|
| 55 | 15, 54 | mpbi 189 |
. . . . . . . 8
|
| 56 | 55 | 3simp1i 789 |
. . . . . . 7
|
| 57 | efieq 7392 |
. . . . . . 7
| |
| 58 | 52, 56, 57 | mp2an 695 |
. . . . . 6
|
| 59 | 58 | negbii 187 |
. . . . 5
|
| 60 | 48, 59 | sylibr 200 |
. . . 4
|
| 61 | 45, 60 | syl 10 |
. . 3
|
| 62 | sinq12gt0t 8625 |
. . . . . . . 8
| |
| 63 | resinclt 7380 |
. . . . . . . . . 10
| |
| 64 | 52, 63 | ax-mp 7 |
. . . . . . . . 9
|
| 65 | 64 | gt0ne0 5585 |
. . . . . . . 8
|
| 66 | 62, 65 | syl 10 |
. . . . . . 7
|
| 67 | df-ne 1579 |
. . . . . . 7
| |
| 68 | 66, 67 | sylib 198 |
. . . . . 6
|
| 69 | 68 | adantr 389 |
. . . . 5
|
| 70 | eqtrt 1484 |
. . . . . . 7
| |
| 71 | fveq2 3709 |
. . . . . . . . 9
| |
| 72 | sinpi 8595 |
. . . . . . . . 9
| |
| 73 | 71, 72 | syl6eq 1515 |
. . . . . . . 8
|
| 74 | 73 | adantl 388 |
. . . . . . 7
|
| 75 | 70, 74 | sylan2 451 |
. . . . . 6
|
| 76 | 75 | expcom 374 |
. . . . 5
|
| 77 | 69, 76 | mtod 108 |
. . . 4
|
| 78 | olc 268 |
. . . . . 6
| |
| 79 | 78, 47 | sylibr 200 |
. . . . 5
|
| 80 | 79, 59 | sylibr 200 |
. . . 4
|
| 81 | 77, 80 | syl 10 |
. . 3
|
| 82 | efif1lem1 8645 |
. . . . . . . . . 10
| |
| 83 | sinq12gt0t 8625 |
. . . . . . . . . 10
|