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Related theorems Unicode version |
| Description: The sine and cosine of
|
| Ref | Expression |
|---|---|
| sincos4thpi |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2re 5981 |
. . . . . . . . . . . 12
| |
| 2 | 2ne0 5992 |
. . . . . . . . . . . 12
| |
| 3 | 1, 2 | rereccl 5803 |
. . . . . . . . . . 11
|
| 4 | 3 | recn 5326 |
. . . . . . . . . 10
|
| 5 | ax1cn 5281 |
. . . . . . . . . . 11
| |
| 6 | 2halvest 6041 |
. . . . . . . . . . 11
| |
| 7 | 5, 6 | ax-mp 7 |
. . . . . . . . . 10
|
| 8 | sincosq1eq 8704 |
. . . . . . . . . 10
| |
| 9 | 4, 4, 7, 8 | mp3an 918 |
. . . . . . . . 9
|
| 10 | 9 | opreq2i 3978 |
. . . . . . . 8
|
| 11 | 10 | opreq2i 3978 |
. . . . . . 7
|
| 12 | 2cn 5982 |
. . . . . . . . . . . 12
| |
| 13 | pire 8672 |
. . . . . . . . . . . . 13
| |
| 14 | 13 | recn 5326 |
. . . . . . . . . . . 12
|
| 15 | 5, 12, 14, 12, 2, 2 | divmuldiv 5788 |
. . . . . . . . . . 11
|
| 16 | 14 | mulid2 5345 |
. . . . . . . . . . . 12
|
| 17 | 2t2e4 6024 |
. . . . . . . . . . . 12
| |
| 18 | 16, 17 | opreq12i 3979 |
. . . . . . . . . . 11
|
| 19 | 15, 18 | eqtr 1498 |
. . . . . . . . . 10
|
| 20 | 19 | fveq2i 3733 |
. . . . . . . . 9
|
| 21 | 20, 20 | opreq12i 3979 |
. . . . . . . 8
|
| 22 | 21 | opreq2i 3978 |
. . . . . . 7
|
| 23 | 12, 2 | recid 5740 |
. . . . . . . . . . 11
|
| 24 | 23 | opreq1i 3977 |
. . . . . . . . . 10
|
| 25 | 13, 1, 2 | redivcl 5800 |
. . . . . . . . . . . 12
|
| 26 | 25 | recn 5326 |
. . . . . . . . . . 11
|
| 27 | 12, 4, 26 | mulass 5337 |
. . . . . . . . . 10
|
| 28 | 26 | mulid2 5345 |
. . . . . . . . . 10
|
| 29 | 24, 27, 28 | 3eqtr3 1506 |
. . . . . . . . 9
|
| 30 | 29 | fveq2i 3733 |
. . . . . . . 8
|
| 31 | 4, 26 | mulcl 5333 |
. . . . . . . . 9
|
| 32 | sin2tt 7462 |
. . . . . . . . 9
| |
| 33 | 31, 32 | ax-mp 7 |
. . . . . . . 8
|
| 34 | sinhalfpi 8675 |
. . . . . . . 8
| |
| 35 | 30, 33, 34 | 3eqtr3 1506 |
. . . . . . 7
|
| 36 | 11, 22, 35 | 3eqtr3 1506 |
. . . . . 6
|
| 37 | 36 | fveq2i 3733 |
. . . . 5
|
| 38 | 4re 5984 |
. . . . . . . . 9
| |
| 39 | 4pos 5994 |
. . . . . . . . . 10
| |
| 40 | 38, 39 | gt0ne0i 5629 |
. . . . . . . . 9
|
| 41 | 13, 38, 40 | redivcl 5800 |
. . . . . . . 8
|
| 42 | resinclt 7438 |
. . . . . . . 8
| |
| 43 | 41, 42 | ax-mp 7 |
. . . . . . 7
|
| 44 | 43, 43 | remulcl 5347 |
. . . . . 6
|
| 45 | 0re 5452 |
. . . . . . 7
| |
| 46 | 2pos 5991 |
. . . . . . 7
| |
| 47 | 45, 1, 46 | ltlei 5593 |
. . . . . 6
|
| 48 | 43 | msqge0 5626 |
. . . . . 6
|
| 49 | 1, 44, 47, 48 | sqrmuli 6705 |
. . . . 5
|
| 50 | sqr1 6717 |
. . . . 5
| |
| 51 | 37, 49, 50 | 3eqtr3r 1507 |
. . . 4
|
| 52 | sqr2re 6731 |
. . . . . 6
| |
| 53 | 52 | recn 5326 |
. . . . 5
|
| 54 | sqrclt 6711 |
. . . . . . 7
| |
| 55 | 44, 48, 54 | mp2an 699 |
. . . . . 6
|
| 56 | 55 | recn 5326 |
. . . . 5
|
| 57 | sqr00t 6715 |
. . . . . . . . 9
| |
| 58 | 1, 47, 57 | mp2an 699 |
. . . . . . . 8
|
| 59 | 58 | necon3bii 1601 |
. . . . . . 7
|
| 60 | 2, 59 | mpbir 190 |
. . . . . 6
|
| 61 | divmul2t 5720 |
. . . . . 6
| |
| 62 | 60, 61 | mpan2 698 |
. . . . 5
|
| 63 | 5, 53, 56, 62 | mp3an 918 |
. . . 4
|
| 64 | 51, 63 | mpbir 190 |
. . 3
|
| 65 | pipos 8673 |
. . . . . . . 8
| |
| 66 | 13, 38, 65, 39 | divgt0i 5862 |
. . . . . . 7
|
| 67 | 1re 5447 |
. . . . . . . 8
| |
| 68 | pigt2lt4 8670 |
. . . . . . . . . . 11
| |
| 69 | 68 | pm3.27i 324 |
. . . . . . . . . 10
|
| 70 | 13, 38, 38, 39 | ltdiv1i 5825 |
. . . . . . . . . 10
|
| 71 | 69, 70 | mpbi 189 |
. . . . . . . . 9
|
| 72 | 38 | recn 5326 |
. . . . . . . . . 10
|
| 73 | 72, 40 | divid 5771 |
. . . . . . . . 9
|
| 74 | 71, 73 | breqtr 2643 |
. . . . . . . 8
|
| 75 | 41, 67, 74 | ltlei 5593 |
. . . . . . 7
|
| 76 | elioc2t 6391 |
. . . . . . . . 9
|