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| Mirrors > Home > ILE Home > Th. List > phibndlem | GIF version | ||
| Description: Lemma for phibnd 12978. (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 9914 | . . . . . . . . . . . 12 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ∈ ℤ) | |
| 4 | gcdid 12746 | . . . . . . . . . . . 12 ⊢ (𝑁 ∈ ℤ → (𝑁 gcd 𝑁) = (abs‘𝑁)) | |
| 5 | 3, 4 | syl 14 | . . . . . . . . . . 11 ⊢ (𝑁 ∈ (ℤ≥‘2) → (𝑁 gcd 𝑁) = (abs‘𝑁)) |
| 6 | eluz2nn 9949 | . . . . . . . . . . . 12 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ∈ ℕ) | |
| 7 | nnre 9294 | . . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℝ) | |
| 8 | nnnn0 9553 | . . . . . . . . . . . . . 14 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℕ0) | |
| 9 | 8 | nn0ge0d 9606 | . . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℕ → 0 ≤ 𝑁) |
| 10 | 7, 9 | absidd 11916 | . . . . . . . . . . . 12 ⊢ (𝑁 ∈ ℕ → (abs‘𝑁) = 𝑁) |
| 11 | 6, 10 | syl 14 | . . . . . . . . . . 11 ⊢ (𝑁 ∈ (ℤ≥‘2) → (abs‘𝑁) = 𝑁) |
| 12 | 5, 11 | eqtrd 2271 | . . . . . . . . . 10 ⊢ (𝑁 ∈ (ℤ≥‘2) → (𝑁 gcd 𝑁) = 𝑁) |
| 13 | 1re 8319 | . . . . . . . . . . 11 ⊢ 1 ∈ ℝ | |
| 14 | eluz2gt1 9985 | . . . . . . . . . . 11 ⊢ (𝑁 ∈ (ℤ≥‘2) → 1 < 𝑁) | |
| 15 | ltne 8404 | . . . . . . . . . . 11 ⊢ ((1 ∈ ℝ ∧ 1 < 𝑁) → 𝑁 ≠ 1) | |
| 16 | 13, 14, 15 | sylancr 418 | . . . . . . . . . 10 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ≠ 1) |
| 17 | 12, 16 | eqnetrd 2444 | . . . . . . . . 9 ⊢ (𝑁 ∈ (ℤ≥‘2) → (𝑁 gcd 𝑁) ≠ 1) |
| 18 | oveq1 6086 | . . . . . . . . . 10 ⊢ (𝑥 = 𝑁 → (𝑥 gcd 𝑁) = (𝑁 gcd 𝑁)) | |
| 19 | 18 | neeq1d 2438 | . . . . . . . . 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 481 | . . . . . 6 ⊢ (((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) ∧ 𝑥 = 𝑁) → (𝑥 gcd 𝑁) ≠ 1) |
| 23 | 22 | neneqd 2441 | . . . . 5 ⊢ (((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) ∧ 𝑥 = 𝑁) → ¬ (𝑥 gcd 𝑁) = 1) |
| 24 | 23 | pm2.21d 628 | . . . 4 ⊢ (((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) ∧ 𝑥 = 𝑁) → ((𝑥 gcd 𝑁) = 1 → 𝑥 ∈ (1...(𝑁 − 1)))) |
| 25 | fzm1 10490 | . . . . . . 7 ⊢ (𝑁 ∈ (ℤ≥‘1) → (𝑥 ∈ (1...𝑁) ↔ (𝑥 ∈ (1...(𝑁 − 1)) ∨ 𝑥 = 𝑁))) | |
| 26 | nnuz 9941 | . . . . . . 7 ⊢ ℕ = (ℤ≥‘1) | |
| 27 | 25, 26 | eleq2s 2333 | . . . . . 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 810 | . . 3 ⊢ ((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) → ((𝑥 gcd 𝑁) = 1 → 𝑥 ∈ (1...(𝑁 − 1)))) |
| 31 | 30 | ralrimiva 2623 | . 2 ⊢ (𝑁 ∈ (ℤ≥‘2) → ∀𝑥 ∈ (1...𝑁)((𝑥 gcd 𝑁) = 1 → 𝑥 ∈ (1...(𝑁 − 1)))) |
| 32 | rabss 3325 | . 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 720 = wceq 1402 ∈ wcel 2209 ≠ wne 2420 ∀wral 2528 {crab 2532 ⊆ wss 3220 class class class wbr 4128 ‘cfv 5375 (class class class)co 6079 ℝcr 8172 1c1 8174 < clt 8354 − cmin 8491 ℕcn 9287 2c2 9338 ℤcz 9627 ℤ≥cuz 9904 ...cfz 10394 abscabs 11746 gcd cgcd 12713 |
| 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 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-coll 4244 ax-sep 4247 ax-nul 4257 ax-pow 4309 ax-pr 4344 ax-un 4576 ax-setind 4682 ax-iinf 4733 ax-cnex 8264 ax-resscn 8265 ax-1cn 8266 ax-1re 8267 ax-icn 8268 ax-addcl 8269 ax-addrcl 8270 ax-mulcl 8271 ax-mulrcl 8272 ax-addcom 8273 ax-mulcom 8274 ax-addass 8275 ax-mulass 8276 ax-distr 8277 ax-i2m1 8278 ax-0lt1 8279 ax-1rid 8280 ax-0id 8281 ax-rnegex 8282 ax-precex 8283 ax-cnre 8284 ax-pre-ltirr 8285 ax-pre-ltwlin 8286 ax-pre-lttrn 8287 ax-pre-apti 8288 ax-pre-ltadd 8289 ax-pre-mulgt0 8290 ax-pre-mulext 8291 ax-arch 8292 ax-caucvg 8293 |
| This theorem depends on definitions: df-bi 117 df-stab 843 df-dc 847 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rmo 2536 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-if 3639 df-pw 3690 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-int 3969 df-iun 4012 df-br 4129 df-opab 4191 df-mpt 4192 df-tr 4228 df-id 4436 df-po 4439 df-iso 4440 df-iord 4509 df-on 4511 df-ilim 4512 df-suc 4514 df-iom 4736 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-rn 4783 df-res 4784 df-ima 4785 df-iota 5335 df-fun 5377 df-fn 5378 df-f 5379 df-f1 5380 df-fo 5381 df-f1o 5382 df-fv 5383 df-riota 6032 df-ov 6082 df-oprab 6083 df-mpo 6084 df-1st 6368 df-2nd 6369 df-recs 6570 df-frec 6656 df-sup 7318 df-pnf 8356 df-mnf 8357 df-xr 8358 df-ltxr 8359 df-le 8360 df-sub 8493 df-neg 8494 df-reap 8897 df-ap 8904 df-div 8997 df-inn 9288 df-2 9346 df-3 9347 df-4 9348 df-n0 9547 df-z 9628 df-uz 9905 df-q 10003 df-rp 10038 df-fz 10395 df-fzo 10533 df-fl 10688 df-mod 10743 df-seqfrec 10868 df-exp 10959 df-cj 11590 df-re 11591 df-im 11592 df-rsqrt 11747 df-abs 11748 df-dvds 12538 df-gcd 12714 |
| This theorem is referenced by: phibnd 12978 dfphi2 12981 |
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