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| Mirrors > Home > ILE Home > Th. List > prmdc | GIF version | ||
| Description: Primality is decidable. (Contributed by Jim Kingdon, 30-Sep-2024.) |
| Ref | Expression |
|---|---|
| prmdc | ⊢ (𝑁 ∈ ℕ → DECID 𝑁 ∈ ℙ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1nuz2 9883 | . . . . . . 7 ⊢ ¬ 1 ∈ (ℤ≥‘2) | |
| 2 | eleq1 2294 | . . . . . . 7 ⊢ (𝑁 = 1 → (𝑁 ∈ (ℤ≥‘2) ↔ 1 ∈ (ℤ≥‘2))) | |
| 3 | 1, 2 | mtbiri 682 | . . . . . 6 ⊢ (𝑁 = 1 → ¬ 𝑁 ∈ (ℤ≥‘2)) |
| 4 | 3 | orim1i 768 | . . . . 5 ⊢ ((𝑁 = 1 ∨ 𝑁 ∈ (ℤ≥‘2)) → (¬ 𝑁 ∈ (ℤ≥‘2) ∨ 𝑁 ∈ (ℤ≥‘2))) |
| 5 | 4 | orcomd 737 | . . . 4 ⊢ ((𝑁 = 1 ∨ 𝑁 ∈ (ℤ≥‘2)) → (𝑁 ∈ (ℤ≥‘2) ∨ ¬ 𝑁 ∈ (ℤ≥‘2))) |
| 6 | elnn1uz2 9884 | . . . 4 ⊢ (𝑁 ∈ ℕ ↔ (𝑁 = 1 ∨ 𝑁 ∈ (ℤ≥‘2))) | |
| 7 | df-dc 843 | . . . 4 ⊢ (DECID 𝑁 ∈ (ℤ≥‘2) ↔ (𝑁 ∈ (ℤ≥‘2) ∨ ¬ 𝑁 ∈ (ℤ≥‘2))) | |
| 8 | 5, 6, 7 | 3imtr4i 201 | . . 3 ⊢ (𝑁 ∈ ℕ → DECID 𝑁 ∈ (ℤ≥‘2)) |
| 9 | 2z 9550 | . . . . . 6 ⊢ 2 ∈ ℤ | |
| 10 | 9 | a1i 9 | . . . . 5 ⊢ (𝑁 ∈ ℕ → 2 ∈ ℤ) |
| 11 | nnz 9541 | . . . . . 6 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℤ) | |
| 12 | peano2zm 9560 | . . . . . 6 ⊢ (𝑁 ∈ ℤ → (𝑁 − 1) ∈ ℤ) | |
| 13 | 11, 12 | syl 14 | . . . . 5 ⊢ (𝑁 ∈ ℕ → (𝑁 − 1) ∈ ℤ) |
| 14 | 10, 13 | fzfigd 10737 | . . . 4 ⊢ (𝑁 ∈ ℕ → (2...(𝑁 − 1)) ∈ Fin) |
| 15 | elfzelz 10303 | . . . . . . . . 9 ⊢ (𝑥 ∈ (2...(𝑁 − 1)) → 𝑥 ∈ ℤ) | |
| 16 | 15 | adantl 277 | . . . . . . . 8 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (2...(𝑁 − 1))) → 𝑥 ∈ ℤ) |
| 17 | 1red 8237 | . . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (2...(𝑁 − 1))) → 1 ∈ ℝ) | |
| 18 | 2re 9256 | . . . . . . . . . 10 ⊢ 2 ∈ ℝ | |
| 19 | 18 | a1i 9 | . . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (2...(𝑁 − 1))) → 2 ∈ ℝ) |
| 20 | 16 | zred 9645 | . . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (2...(𝑁 − 1))) → 𝑥 ∈ ℝ) |
| 21 | 1le2 9395 | . . . . . . . . . 10 ⊢ 1 ≤ 2 | |
| 22 | 21 | a1i 9 | . . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (2...(𝑁 − 1))) → 1 ≤ 2) |
| 23 | elfzle1 10305 | . . . . . . . . . 10 ⊢ (𝑥 ∈ (2...(𝑁 − 1)) → 2 ≤ 𝑥) | |
| 24 | 23 | adantl 277 | . . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (2...(𝑁 − 1))) → 2 ≤ 𝑥) |
| 25 | 17, 19, 20, 22, 24 | letrd 8346 | . . . . . . . 8 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (2...(𝑁 − 1))) → 1 ≤ 𝑥) |
| 26 | elnnz1 9545 | . . . . . . . 8 ⊢ (𝑥 ∈ ℕ ↔ (𝑥 ∈ ℤ ∧ 1 ≤ 𝑥)) | |
| 27 | 16, 25, 26 | sylanbrc 417 | . . . . . . 7 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (2...(𝑁 − 1))) → 𝑥 ∈ ℕ) |
| 28 | 11 | adantr 276 | . . . . . . 7 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (2...(𝑁 − 1))) → 𝑁 ∈ ℤ) |
| 29 | dvdsdc 12420 | . . . . . . 7 ⊢ ((𝑥 ∈ ℕ ∧ 𝑁 ∈ ℤ) → DECID 𝑥 ∥ 𝑁) | |
| 30 | 27, 28, 29 | syl2anc 411 | . . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (2...(𝑁 − 1))) → DECID 𝑥 ∥ 𝑁) |
| 31 | dcn 850 | . . . . . 6 ⊢ (DECID 𝑥 ∥ 𝑁 → DECID ¬ 𝑥 ∥ 𝑁) | |
| 32 | 30, 31 | syl 14 | . . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (2...(𝑁 − 1))) → DECID ¬ 𝑥 ∥ 𝑁) |
| 33 | 32 | ralrimiva 2606 | . . . 4 ⊢ (𝑁 ∈ ℕ → ∀𝑥 ∈ (2...(𝑁 − 1))DECID ¬ 𝑥 ∥ 𝑁) |
| 34 | dcfi 7223 | . . . 4 ⊢ (((2...(𝑁 − 1)) ∈ Fin ∧ ∀𝑥 ∈ (2...(𝑁 − 1))DECID ¬ 𝑥 ∥ 𝑁) → DECID ∀𝑥 ∈ (2...(𝑁 − 1)) ¬ 𝑥 ∥ 𝑁) | |
| 35 | 14, 33, 34 | syl2anc 411 | . . 3 ⊢ (𝑁 ∈ ℕ → DECID ∀𝑥 ∈ (2...(𝑁 − 1)) ¬ 𝑥 ∥ 𝑁) |
| 36 | 8, 35 | dcand 941 | . 2 ⊢ (𝑁 ∈ ℕ → DECID (𝑁 ∈ (ℤ≥‘2) ∧ ∀𝑥 ∈ (2...(𝑁 − 1)) ¬ 𝑥 ∥ 𝑁)) |
| 37 | isprm3 12751 | . . 3 ⊢ (𝑁 ∈ ℙ ↔ (𝑁 ∈ (ℤ≥‘2) ∧ ∀𝑥 ∈ (2...(𝑁 − 1)) ¬ 𝑥 ∥ 𝑁)) | |
| 38 | 37 | dcbii 848 | . 2 ⊢ (DECID 𝑁 ∈ ℙ ↔ DECID (𝑁 ∈ (ℤ≥‘2) ∧ ∀𝑥 ∈ (2...(𝑁 − 1)) ¬ 𝑥 ∥ 𝑁)) |
| 39 | 36, 38 | sylibr 134 | 1 ⊢ (𝑁 ∈ ℕ → DECID 𝑁 ∈ ℙ) |
| Colors of variables: wff set class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 104 ∨ wo 716 DECID wdc 842 = wceq 1398 ∈ wcel 2202 ∀wral 2511 class class class wbr 4093 ‘cfv 5333 (class class class)co 6028 Fincfn 6952 ℝcr 8074 1c1 8076 ≤ cle 8258 − cmin 8393 ℕcn 9186 2c2 9237 ℤcz 9522 ℤ≥cuz 9798 ...cfz 10286 ∥ cdvds 12409 ℙcprime 12740 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2204 ax-14 2205 ax-ext 2213 ax-coll 4209 ax-sep 4212 ax-nul 4220 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-setind 4641 ax-iinf 4692 ax-cnex 8166 ax-resscn 8167 ax-1cn 8168 ax-1re 8169 ax-icn 8170 ax-addcl 8171 ax-addrcl 8172 ax-mulcl 8173 ax-mulrcl 8174 ax-addcom 8175 ax-mulcom 8176 ax-addass 8177 ax-mulass 8178 ax-distr 8179 ax-i2m1 8180 ax-0lt1 8181 ax-1rid 8182 ax-0id 8183 ax-rnegex 8184 ax-precex 8185 ax-cnre 8186 ax-pre-ltirr 8187 ax-pre-ltwlin 8188 ax-pre-lttrn 8189 ax-pre-apti 8190 ax-pre-ltadd 8191 ax-pre-mulgt0 8192 ax-pre-mulext 8193 ax-arch 8194 ax-caucvg 8195 |
| This theorem depends on definitions: df-bi 117 df-stab 839 df-dc 843 df-3or 1006 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-nel 2499 df-ral 2516 df-rex 2517 df-reu 2518 df-rmo 2519 df-rab 2520 df-v 2805 df-sbc 3033 df-csb 3129 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-nul 3497 df-if 3608 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-int 3934 df-iun 3977 df-br 4094 df-opab 4156 df-mpt 4157 df-tr 4193 df-id 4396 df-po 4399 df-iso 4400 df-iord 4469 df-on 4471 df-ilim 4472 df-suc 4474 df-iom 4695 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-res 4743 df-ima 4744 df-iota 5293 df-fun 5335 df-fn 5336 df-f 5337 df-f1 5338 df-fo 5339 df-f1o 5340 df-fv 5341 df-riota 5981 df-ov 6031 df-oprab 6032 df-mpo 6033 df-1st 6312 df-2nd 6313 df-recs 6514 df-frec 6600 df-1o 6625 df-2o 6626 df-er 6745 df-en 6953 df-fin 6955 df-pnf 8259 df-mnf 8260 df-xr 8261 df-ltxr 8262 df-le 8263 df-sub 8395 df-neg 8396 df-reap 8798 df-ap 8805 df-div 8896 df-inn 9187 df-2 9245 df-3 9246 df-4 9247 df-n0 9446 df-z 9523 df-uz 9799 df-q 9897 df-rp 9932 df-fz 10287 df-fl 10574 df-mod 10629 df-seqfrec 10754 df-exp 10845 df-cj 11463 df-re 11464 df-im 11465 df-rsqrt 11619 df-abs 11620 df-dvds 12410 df-prm 12741 |
| This theorem is referenced by: pcmptcl 12976 pcmpt 12977 1arith 13001 prminf 13137 lgsval 15803 lgsfvalg 15804 lgsfcl2 15805 lgsval2lem 15809 lgsval4lem 15810 lgsneg 15823 lgsmod 15825 lgsdir 15834 lgsdilem2 15835 lgsdi 15836 lgsne0 15837 |
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