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| Mirrors > Home > ILE Home > Th. List > phibndlem | GIF version | ||
| Description: Lemma for phibnd 12939. (Contributed by Mario Carneiro, 23-Feb-2014.) |
| Ref | Expression |
|---|---|
| phibndlem | ⊢ (𝑁 ∈ (ℤ≥‘2) → {𝑥 ∈ (1...𝑁) ∣ (𝑥 gcd 𝑁) = 1} ⊆ (1...(𝑁 − 1))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpr 110 | . . . . 5 ⊢ (((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) ∧ 𝑥 ∈ (1...(𝑁 − 1))) → 𝑥 ∈ (1...(𝑁 − 1))) | |
| 2 | 1 | a1d 22 | . . . 4 ⊢ (((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) ∧ 𝑥 ∈ (1...(𝑁 − 1))) → ((𝑥 gcd 𝑁) = 1 → 𝑥 ∈ (1...(𝑁 − 1)))) |
| 3 | eluzelz 9881 | . . . . . . . . . . . 12 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ∈ ℤ) | |
| 4 | gcdid 12707 | . . . . . . . . . . . 12 ⊢ (𝑁 ∈ ℤ → (𝑁 gcd 𝑁) = (abs‘𝑁)) | |
| 5 | 3, 4 | syl 14 | . . . . . . . . . . 11 ⊢ (𝑁 ∈ (ℤ≥‘2) → (𝑁 gcd 𝑁) = (abs‘𝑁)) |
| 6 | eluz2nn 9916 | . . . . . . . . . . . 12 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ∈ ℕ) | |
| 7 | nnre 9261 | . . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℝ) | |
| 8 | nnnn0 9520 | . . . . . . . . . . . . . 14 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℕ0) | |
| 9 | 8 | nn0ge0d 9573 | . . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℕ → 0 ≤ 𝑁) |
| 10 | 7, 9 | absidd 11877 | . . . . . . . . . . . 12 ⊢ (𝑁 ∈ ℕ → (abs‘𝑁) = 𝑁) |
| 11 | 6, 10 | syl 14 | . . . . . . . . . . 11 ⊢ (𝑁 ∈ (ℤ≥‘2) → (abs‘𝑁) = 𝑁) |
| 12 | 5, 11 | eqtrd 2267 | . . . . . . . . . 10 ⊢ (𝑁 ∈ (ℤ≥‘2) → (𝑁 gcd 𝑁) = 𝑁) |
| 13 | 1re 8289 | . . . . . . . . . . 11 ⊢ 1 ∈ ℝ | |
| 14 | eluz2gt1 9952 | . . . . . . . . . . 11 ⊢ (𝑁 ∈ (ℤ≥‘2) → 1 < 𝑁) | |
| 15 | ltne 8374 | . . . . . . . . . . 11 ⊢ ((1 ∈ ℝ ∧ 1 < 𝑁) → 𝑁 ≠ 1) | |
| 16 | 13, 14, 15 | sylancr 414 | . . . . . . . . . 10 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ≠ 1) |
| 17 | 12, 16 | eqnetrd 2438 | . . . . . . . . 9 ⊢ (𝑁 ∈ (ℤ≥‘2) → (𝑁 gcd 𝑁) ≠ 1) |
| 18 | oveq1 6065 | . . . . . . . . . 10 ⊢ (𝑥 = 𝑁 → (𝑥 gcd 𝑁) = (𝑁 gcd 𝑁)) | |
| 19 | 18 | neeq1d 2432 | . . . . . . . . 9 ⊢ (𝑥 = 𝑁 → ((𝑥 gcd 𝑁) ≠ 1 ↔ (𝑁 gcd 𝑁) ≠ 1)) |
| 20 | 17, 19 | syl5ibrcom 157 | . . . . . . . 8 ⊢ (𝑁 ∈ (ℤ≥‘2) → (𝑥 = 𝑁 → (𝑥 gcd 𝑁) ≠ 1)) |
| 21 | 20 | imp 124 | . . . . . . 7 ⊢ ((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 = 𝑁) → (𝑥 gcd 𝑁) ≠ 1) |
| 22 | 21 | adantlr 477 | . . . . . 6 ⊢ (((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) ∧ 𝑥 = 𝑁) → (𝑥 gcd 𝑁) ≠ 1) |
| 23 | 22 | neneqd 2435 | . . . . 5 ⊢ (((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) ∧ 𝑥 = 𝑁) → ¬ (𝑥 gcd 𝑁) = 1) |
| 24 | 23 | pm2.21d 624 | . . . 4 ⊢ (((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) ∧ 𝑥 = 𝑁) → ((𝑥 gcd 𝑁) = 1 → 𝑥 ∈ (1...(𝑁 − 1)))) |
| 25 | fzm1 10456 | . . . . . . 7 ⊢ (𝑁 ∈ (ℤ≥‘1) → (𝑥 ∈ (1...𝑁) ↔ (𝑥 ∈ (1...(𝑁 − 1)) ∨ 𝑥 = 𝑁))) | |
| 26 | nnuz 9908 | . . . . . . 7 ⊢ ℕ = (ℤ≥‘1) | |
| 27 | 25, 26 | eleq2s 2329 | . . . . . 6 ⊢ (𝑁 ∈ ℕ → (𝑥 ∈ (1...𝑁) ↔ (𝑥 ∈ (1...(𝑁 − 1)) ∨ 𝑥 = 𝑁))) |
| 28 | 27 | biimpa 296 | . . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (1...𝑁)) → (𝑥 ∈ (1...(𝑁 − 1)) ∨ 𝑥 = 𝑁)) |
| 29 | 6, 28 | sylan 283 | . . . 4 ⊢ ((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) → (𝑥 ∈ (1...(𝑁 − 1)) ∨ 𝑥 = 𝑁)) |
| 30 | 2, 24, 29 | mpjaodan 806 | . . 3 ⊢ ((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) → ((𝑥 gcd 𝑁) = 1 → 𝑥 ∈ (1...(𝑁 − 1)))) |
| 31 | 30 | ralrimiva 2617 | . 2 ⊢ (𝑁 ∈ (ℤ≥‘2) → ∀𝑥 ∈ (1...𝑁)((𝑥 gcd 𝑁) = 1 → 𝑥 ∈ (1...(𝑁 − 1)))) |
| 32 | rabss 3319 | . 2 ⊢ ({𝑥 ∈ (1...𝑁) ∣ (𝑥 gcd 𝑁) = 1} ⊆ (1...(𝑁 − 1)) ↔ ∀𝑥 ∈ (1...𝑁)((𝑥 gcd 𝑁) = 1 → 𝑥 ∈ (1...(𝑁 − 1)))) | |
| 33 | 31, 32 | sylibr 134 | 1 ⊢ (𝑁 ∈ (ℤ≥‘2) → {𝑥 ∈ (1...𝑁) ∣ (𝑥 gcd 𝑁) = 1} ⊆ (1...(𝑁 − 1))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 ∨ wo 716 = wceq 1398 ∈ wcel 2205 ≠ wne 2414 ∀wral 2522 {crab 2526 ⊆ wss 3214 class class class wbr 4114 ‘cfv 5357 (class class class)co 6058 ℝcr 8142 1c1 8144 < clt 8324 − cmin 8460 ℕcn 9254 2c2 9305 ℤcz 9594 ℤ≥cuz 9871 ...cfz 10361 abscabs 11707 gcd cgcd 12674 |
| 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 2207 ax-14 2208 ax-ext 2216 ax-coll 4230 ax-sep 4233 ax-nul 4241 ax-pow 4292 ax-pr 4327 ax-un 4559 ax-setind 4664 ax-iinf 4715 ax-cnex 8234 ax-resscn 8235 ax-1cn 8236 ax-1re 8237 ax-icn 8238 ax-addcl 8239 ax-addrcl 8240 ax-mulcl 8241 ax-mulrcl 8242 ax-addcom 8243 ax-mulcom 8244 ax-addass 8245 ax-mulass 8246 ax-distr 8247 ax-i2m1 8248 ax-0lt1 8249 ax-1rid 8250 ax-0id 8251 ax-rnegex 8252 ax-precex 8253 ax-cnre 8254 ax-pre-ltirr 8255 ax-pre-ltwlin 8256 ax-pre-lttrn 8257 ax-pre-apti 8258 ax-pre-ltadd 8259 ax-pre-mulgt0 8260 ax-pre-mulext 8261 ax-arch 8262 ax-caucvg 8263 |
| 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 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-nel 2510 df-ral 2527 df-rex 2528 df-reu 2529 df-rmo 2530 df-rab 2531 df-v 2817 df-sbc 3046 df-csb 3142 df-dif 3216 df-un 3218 df-in 3220 df-ss 3227 df-nul 3513 df-if 3625 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-int 3955 df-iun 3998 df-br 4115 df-opab 4177 df-mpt 4178 df-tr 4214 df-id 4419 df-po 4422 df-iso 4423 df-iord 4492 df-on 4494 df-ilim 4495 df-suc 4497 df-iom 4718 df-xp 4760 df-rel 4761 df-cnv 4762 df-co 4763 df-dm 4764 df-rn 4765 df-res 4766 df-ima 4767 df-iota 5317 df-fun 5359 df-fn 5360 df-f 5361 df-f1 5362 df-fo 5363 df-f1o 5364 df-fv 5365 df-riota 6011 df-ov 6061 df-oprab 6062 df-mpo 6063 df-1st 6347 df-2nd 6348 df-recs 6549 df-frec 6635 df-sup 7288 df-pnf 8326 df-mnf 8327 df-xr 8328 df-ltxr 8329 df-le 8330 df-sub 8462 df-neg 8463 df-reap 8866 df-ap 8873 df-div 8964 df-inn 9255 df-2 9313 df-3 9314 df-4 9315 df-n0 9514 df-z 9595 df-uz 9872 df-q 9970 df-rp 10005 df-fz 10362 df-fzo 10499 df-fl 10654 df-mod 10709 df-seqfrec 10834 df-exp 10925 df-cj 11552 df-re 11553 df-im 11554 df-rsqrt 11708 df-abs 11709 df-dvds 12499 df-gcd 12675 |
| This theorem is referenced by: phibnd 12939 dfphi2 12942 |
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