Description: 83 is a prime number. (Contributed by Mario Carneiro, 18-Feb-2014) (Proof shortened by Mario Carneiro, 20-Apr-2015)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | 83prm | ⊢ ; 8 3 ∈ ℙ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 8nn0 | ⊢ 8 ∈ ℕ0 | |
| 2 | 3nn | ⊢ 3 ∈ ℕ | |
| 3 | 1 2 | decnncl | ⊢ ; 8 3 ∈ ℕ |
| 4 | 4nn0 | ⊢ 4 ∈ ℕ0 | |
| 5 | 1 4 | deccl | ⊢ ; 8 4 ∈ ℕ0 |
| 6 | 3nn0 | ⊢ 3 ∈ ℕ0 | |
| 7 | 1nn0 | ⊢ 1 ∈ ℕ0 | |
| 8 | 3lt10 | ⊢ 3 < ; 1 0 | |
| 9 | 8nn | ⊢ 8 ∈ ℕ | |
| 10 | 8lt10 | ⊢ 8 < ; 1 0 | |
| 11 | 9 4 1 10 | declti | ⊢ 8 < ; 8 4 |
| 12 | 1 5 6 7 8 11 | decltc | ⊢ ; 8 3 < ; ; 8 4 1 |
| 13 | 1lt10 | ⊢ 1 < ; 1 0 | |
| 14 | 9 6 7 13 | declti | ⊢ 1 < ; 8 3 |
| 15 | 2cn | ⊢ 2 ∈ ℂ | |
| 16 | 15 | mullidi | ⊢ ( 1 · 2 ) = 2 |
| 17 | df-3 | ⊢ 3 = ( 2 + 1 ) | |
| 18 | 1 7 16 17 | dec2dvds | ⊢ ¬ 2 ∥ ; 8 3 |
| 19 | 2nn0 | ⊢ 2 ∈ ℕ0 | |
| 20 | 7nn0 | ⊢ 7 ∈ ℕ0 | |
| 21 | 19 20 | deccl | ⊢ ; 2 7 ∈ ℕ0 |
| 22 | 2nn | ⊢ 2 ∈ ℕ | |
| 23 | 0nn0 | ⊢ 0 ∈ ℕ0 | |
| 24 | eqid | ⊢ ; 2 7 = ; 2 7 | |
| 25 | 19 | dec0h | ⊢ 2 = ; 0 2 |
| 26 | 3t2e6 | ⊢ ( 3 · 2 ) = 6 | |
| 27 | 15 | addlidi | ⊢ ( 0 + 2 ) = 2 |
| 28 | 26 27 | oveq12i | ⊢ ( ( 3 · 2 ) + ( 0 + 2 ) ) = ( 6 + 2 ) |
| 29 | 6p2e8 | ⊢ ( 6 + 2 ) = 8 | |
| 30 | 28 29 | eqtri | ⊢ ( ( 3 · 2 ) + ( 0 + 2 ) ) = 8 |
| 31 | 7cn | ⊢ 7 ∈ ℂ | |
| 32 | 3cn | ⊢ 3 ∈ ℂ | |
| 33 | 7t3e21 | ⊢ ( 7 · 3 ) = ; 2 1 | |
| 34 | 31 32 33 | mulcomli | ⊢ ( 3 · 7 ) = ; 2 1 |
| 35 | 1p2e3 | ⊢ ( 1 + 2 ) = 3 | |
| 36 | 19 7 19 34 35 | decaddi | ⊢ ( ( 3 · 7 ) + 2 ) = ; 2 3 |
| 37 | 19 20 23 19 24 25 6 6 19 30 36 | decma2c | ⊢ ( ( 3 · ; 2 7 ) + 2 ) = ; 8 3 |
| 38 | 2lt3 | ⊢ 2 < 3 | |
| 39 | 2 21 22 37 38 | ndvdsi | ⊢ ¬ 3 ∥ ; 8 3 |
| 40 | 3lt5 | ⊢ 3 < 5 | |
| 41 | 1 2 40 | dec5dvds | ⊢ ¬ 5 ∥ ; 8 3 |
| 42 | 7nn | ⊢ 7 ∈ ℕ | |
| 43 | 7 7 | deccl | ⊢ ; 1 1 ∈ ℕ0 |
| 44 | 6nn | ⊢ 6 ∈ ℕ | |
| 45 | 6nn0 | ⊢ 6 ∈ ℕ0 | |
| 46 | eqid | ⊢ ; 1 1 = ; 1 1 | |
| 47 | 45 | dec0h | ⊢ 6 = ; 0 6 |
| 48 | 31 | mulridi | ⊢ ( 7 · 1 ) = 7 |
| 49 | ax-1cn | ⊢ 1 ∈ ℂ | |
| 50 | 49 | addlidi | ⊢ ( 0 + 1 ) = 1 |
| 51 | 48 50 | oveq12i | ⊢ ( ( 7 · 1 ) + ( 0 + 1 ) ) = ( 7 + 1 ) |
| 52 | 7p1e8 | ⊢ ( 7 + 1 ) = 8 | |
| 53 | 51 52 | eqtri | ⊢ ( ( 7 · 1 ) + ( 0 + 1 ) ) = 8 |
| 54 | 48 | oveq1i | ⊢ ( ( 7 · 1 ) + 6 ) = ( 7 + 6 ) |
| 55 | 7p6e13 | ⊢ ( 7 + 6 ) = ; 1 3 | |
| 56 | 54 55 | eqtri | ⊢ ( ( 7 · 1 ) + 6 ) = ; 1 3 |
| 57 | 7 7 23 45 46 47 20 6 7 53 56 | decma2c | ⊢ ( ( 7 · ; 1 1 ) + 6 ) = ; 8 3 |
| 58 | 6lt7 | ⊢ 6 < 7 | |
| 59 | 42 43 44 57 58 | ndvdsi | ⊢ ¬ 7 ∥ ; 8 3 |
| 60 | 11nn | ⊢ ; 1 1 ∈ ℕ | |
| 61 | 1nn | ⊢ 1 ∈ ℕ | |
| 62 | 7 61 | decnncl | ⊢ ; 1 1 ∈ ℕ |
| 63 | 62 | nncni | ⊢ ; 1 1 ∈ ℂ |
| 64 | 63 31 | mulcomi | ⊢ ( ; 1 1 · 7 ) = ( 7 · ; 1 1 ) |
| 65 | 64 | oveq1i | ⊢ ( ( ; 1 1 · 7 ) + 6 ) = ( ( 7 · ; 1 1 ) + 6 ) |
| 66 | 65 57 | eqtri | ⊢ ( ( ; 1 1 · 7 ) + 6 ) = ; 8 3 |
| 67 | 6lt10 | ⊢ 6 < ; 1 0 | |
| 68 | 61 7 45 67 | declti | ⊢ 6 < ; 1 1 |
| 69 | 60 20 44 66 68 | ndvdsi | ⊢ ¬ ; 1 1 ∥ ; 8 3 |
| 70 | 7 2 | decnncl | ⊢ ; 1 3 ∈ ℕ |
| 71 | 5nn | ⊢ 5 ∈ ℕ | |
| 72 | 5nn0 | ⊢ 5 ∈ ℕ0 | |
| 73 | eqid | ⊢ ; 1 3 = ; 1 3 | |
| 74 | 72 | dec0h | ⊢ 5 = ; 0 5 |
| 75 | 6cn | ⊢ 6 ∈ ℂ | |
| 76 | 75 | mullidi | ⊢ ( 1 · 6 ) = 6 |
| 77 | 76 27 | oveq12i | ⊢ ( ( 1 · 6 ) + ( 0 + 2 ) ) = ( 6 + 2 ) |
| 78 | 77 29 | eqtri | ⊢ ( ( 1 · 6 ) + ( 0 + 2 ) ) = 8 |
| 79 | 6t3e18 | ⊢ ( 6 · 3 ) = ; 1 8 | |
| 80 | 75 32 79 | mulcomli | ⊢ ( 3 · 6 ) = ; 1 8 |
| 81 | 1p1e2 | ⊢ ( 1 + 1 ) = 2 | |
| 82 | 8p5e13 | ⊢ ( 8 + 5 ) = ; 1 3 | |
| 83 | 7 1 72 80 81 6 82 | decaddci | ⊢ ( ( 3 · 6 ) + 5 ) = ; 2 3 |
| 84 | 7 6 23 72 73 74 45 6 19 78 83 | decmac | ⊢ ( ( ; 1 3 · 6 ) + 5 ) = ; 8 3 |
| 85 | 5lt10 | ⊢ 5 < ; 1 0 | |
| 86 | 61 6 72 85 | declti | ⊢ 5 < ; 1 3 |
| 87 | 70 45 71 84 86 | ndvdsi | ⊢ ¬ ; 1 3 ∥ ; 8 3 |
| 88 | 7 42 | decnncl | ⊢ ; 1 7 ∈ ℕ |
| 89 | 7 71 | decnncl | ⊢ ; 1 5 ∈ ℕ |
| 90 | eqid | ⊢ ; 1 7 = ; 1 7 | |
| 91 | eqid | ⊢ ; 1 5 = ; 1 5 | |
| 92 | 4cn | ⊢ 4 ∈ ℂ | |
| 93 | 92 | mullidi | ⊢ ( 1 · 4 ) = 4 |
| 94 | 3p1e4 | ⊢ ( 3 + 1 ) = 4 | |
| 95 | 32 49 94 | addcomli | ⊢ ( 1 + 3 ) = 4 |
| 96 | 93 95 | oveq12i | ⊢ ( ( 1 · 4 ) + ( 1 + 3 ) ) = ( 4 + 4 ) |
| 97 | 4p4e8 | ⊢ ( 4 + 4 ) = 8 | |
| 98 | 96 97 | eqtri | ⊢ ( ( 1 · 4 ) + ( 1 + 3 ) ) = 8 |
| 99 | 7t4e28 | ⊢ ( 7 · 4 ) = ; 2 8 | |
| 100 | 2p1e3 | ⊢ ( 2 + 1 ) = 3 | |
| 101 | 19 1 72 99 100 6 82 | decaddci | ⊢ ( ( 7 · 4 ) + 5 ) = ; 3 3 |
| 102 | 7 20 7 72 90 91 4 6 6 98 101 | decmac | ⊢ ( ( ; 1 7 · 4 ) + ; 1 5 ) = ; 8 3 |
| 103 | 5lt7 | ⊢ 5 < 7 | |
| 104 | 7 72 42 103 | declt | ⊢ ; 1 5 < ; 1 7 |
| 105 | 88 4 89 102 104 | ndvdsi | ⊢ ¬ ; 1 7 ∥ ; 8 3 |
| 106 | 9nn | ⊢ 9 ∈ ℕ | |
| 107 | 7 106 | decnncl | ⊢ ; 1 9 ∈ ℕ |
| 108 | 9nn0 | ⊢ 9 ∈ ℕ0 | |
| 109 | eqid | ⊢ ; 1 9 = ; 1 9 | |
| 110 | 20 | dec0h | ⊢ 7 = ; 0 7 |
| 111 | 92 | addlidi | ⊢ ( 0 + 4 ) = 4 |
| 112 | 93 111 | oveq12i | ⊢ ( ( 1 · 4 ) + ( 0 + 4 ) ) = ( 4 + 4 ) |
| 113 | 112 97 | eqtri | ⊢ ( ( 1 · 4 ) + ( 0 + 4 ) ) = 8 |
| 114 | 9t4e36 | ⊢ ( 9 · 4 ) = ; 3 6 | |
| 115 | 31 75 55 | addcomli | ⊢ ( 6 + 7 ) = ; 1 3 |
| 116 | 6 45 20 114 94 6 115 | decaddci | ⊢ ( ( 9 · 4 ) + 7 ) = ; 4 3 |
| 117 | 7 108 23 20 109 110 4 6 4 113 116 | decmac | ⊢ ( ( ; 1 9 · 4 ) + 7 ) = ; 8 3 |
| 118 | 7lt10 | ⊢ 7 < ; 1 0 | |
| 119 | 61 108 20 118 | declti | ⊢ 7 < ; 1 9 |
| 120 | 107 4 42 117 119 | ndvdsi | ⊢ ¬ ; 1 9 ∥ ; 8 3 |
| 121 | 19 2 | decnncl | ⊢ ; 2 3 ∈ ℕ |
| 122 | 4nn | ⊢ 4 ∈ ℕ | |
| 123 | 7 122 | decnncl | ⊢ ; 1 4 ∈ ℕ |
| 124 | eqid | ⊢ ; 2 3 = ; 2 3 | |
| 125 | eqid | ⊢ ; 1 4 = ; 1 4 | |
| 126 | 2t3e6 | ⊢ ( 2 · 3 ) = 6 | |
| 127 | 126 81 | oveq12i | ⊢ ( ( 2 · 3 ) + ( 1 + 1 ) ) = ( 6 + 2 ) |
| 128 | 127 29 | eqtri | ⊢ ( ( 2 · 3 ) + ( 1 + 1 ) ) = 8 |
| 129 | 3t3e9 | ⊢ ( 3 · 3 ) = 9 | |
| 130 | 129 | oveq1i | ⊢ ( ( 3 · 3 ) + 4 ) = ( 9 + 4 ) |
| 131 | 9p4e13 | ⊢ ( 9 + 4 ) = ; 1 3 | |
| 132 | 130 131 | eqtri | ⊢ ( ( 3 · 3 ) + 4 ) = ; 1 3 |
| 133 | 19 6 7 4 124 125 6 6 7 128 132 | decmac | ⊢ ( ( ; 2 3 · 3 ) + ; 1 4 ) = ; 8 3 |
| 134 | 4lt10 | ⊢ 4 < ; 1 0 | |
| 135 | 1lt2 | ⊢ 1 < 2 | |
| 136 | 7 19 4 6 134 135 | decltc | ⊢ ; 1 4 < ; 2 3 |
| 137 | 121 6 123 133 136 | ndvdsi | ⊢ ¬ ; 2 3 ∥ ; 8 3 |
| 138 | 3 12 14 18 39 41 59 69 87 105 120 137 | prmlem2 | ⊢ ; 8 3 ∈ ℙ |