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| Mirrors > Home > MPE Home > Th. List > nprmi | Structured version Visualization version GIF version | ||
| Description: An inference for compositeness. (Contributed by Mario Carneiro, 18-Feb-2014.) (Revised by Mario Carneiro, 20-Jun-2015.) |
| Ref | Expression |
|---|---|
| nprmi.1 | ⊢ 𝐴 ∈ ℕ |
| nprmi.2 | ⊢ 𝐵 ∈ ℕ |
| nprmi.3 | ⊢ 1 < 𝐴 |
| nprmi.4 | ⊢ 1 < 𝐵 |
| nprmi.5 | ⊢ (𝐴 · 𝐵) = 𝑁 |
| Ref | Expression |
|---|---|
| nprmi | ⊢ ¬ 𝑁 ∈ ℙ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nprmi.1 | . . 3 ⊢ 𝐴 ∈ ℕ | |
| 2 | nprmi.3 | . . 3 ⊢ 1 < 𝐴 | |
| 3 | nprmi.2 | . . 3 ⊢ 𝐵 ∈ ℕ | |
| 4 | nprmi.4 | . . 3 ⊢ 1 < 𝐵 | |
| 5 | eluz2b2 12933 | . . . 4 ⊢ (𝐴 ∈ (ℤ≥‘2) ↔ (𝐴 ∈ ℕ ∧ 1 < 𝐴)) | |
| 6 | eluz2b2 12933 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘2) ↔ (𝐵 ∈ ℕ ∧ 1 < 𝐵)) | |
| 7 | nprm 16734 | . . . 4 ⊢ ((𝐴 ∈ (ℤ≥‘2) ∧ 𝐵 ∈ (ℤ≥‘2)) → ¬ (𝐴 · 𝐵) ∈ ℙ) | |
| 8 | 5, 6, 7 | syl2anbr 610 | . . 3 ⊢ (((𝐴 ∈ ℕ ∧ 1 < 𝐴) ∧ (𝐵 ∈ ℕ ∧ 1 < 𝐵)) → ¬ (𝐴 · 𝐵) ∈ ℙ) |
| 9 | 1, 2, 3, 4, 8 | mp4an 705 | . 2 ⊢ ¬ (𝐴 · 𝐵) ∈ ℙ |
| 10 | nprmi.5 | . . 3 ⊢ (𝐴 · 𝐵) = 𝑁 | |
| 11 | 10 | eleq1i 2856 | . 2 ⊢ ((𝐴 · 𝐵) ∈ ℙ ↔ 𝑁 ∈ ℙ) |
| 12 | 9, 11 | mtbi 325 | 1 ⊢ ¬ 𝑁 ∈ ℙ |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 ∧ wa 400 = wceq 1563 ∈ wcel 2145 class class class wbr 5104 ‘cfv 6525 (class class class)co 7400 1c1 11089 · cmul 11093 < clt 11231 ℕcn 12221 2c2 12283 ℤ≥cuz 12850 ℙcprime 16717 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-sep 5250 ax-nul 5260 ax-pow 5326 ax-pr 5394 ax-un 7722 ax-cnex 11144 ax-resscn 11145 ax-1cn 11146 ax-icn 11147 ax-addcl 11148 ax-addrcl 11149 ax-mulcl 11150 ax-mulrcl 11151 ax-mulcom 11152 ax-addass 11153 ax-mulass 11154 ax-distr 11155 ax-i2m1 11156 ax-1ne0 11157 ax-1rid 11158 ax-rnegex 11159 ax-rrecex 11160 ax-cnre 11161 ax-pre-lttri 11162 ax-pre-lttrn 11163 ax-pre-ltadd 11164 ax-pre-mulgt0 11165 ax-pre-sup 11166 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3370 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-pss 3927 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-iun 4953 df-br 5105 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6291 df-ord 6352 df-on 6353 df-lim 6354 df-suc 6355 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7851 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-rdg 8385 df-1o 8441 df-2o 8442 df-er 8682 df-en 8932 df-dom 8933 df-sdom 8934 df-fin 8935 df-sup 9390 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 df-le 11237 df-sub 11431 df-neg 11432 df-div 11860 df-nn 12222 df-2 12291 df-3 12292 df-n0 12493 df-z 12580 df-uz 12851 df-rp 13005 df-seq 14026 df-exp 14086 df-cj 15138 df-re 15139 df-im 15140 df-sqrt 15274 df-abs 15275 df-dvds 16299 df-prm 16718 |
| This theorem is referenced by: 4nprm 16741 dec5nprm 17114 dec2nprm 17115 6nprm 17157 8nprm 17159 9nprm 17160 10nprmOLD 17162 prmlem2 17168 fmtno4prmfac193 48181 fmtno5nprm 48191 |
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