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Mirrors > Home > MPE Home > Th. List > phibndlem | Structured version Visualization version GIF version |
Description: Lemma for phibnd 16472. (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 | eluz2nn 12624 | . . . . . 6 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ∈ ℕ) | |
2 | fzm1 13336 | . . . . . . . . 9 ⊢ (𝑁 ∈ (ℤ≥‘1) → (𝑥 ∈ (1...𝑁) ↔ (𝑥 ∈ (1...(𝑁 − 1)) ∨ 𝑥 = 𝑁))) | |
3 | nnuz 12621 | . . . . . . . . 9 ⊢ ℕ = (ℤ≥‘1) | |
4 | 2, 3 | eleq2s 2857 | . . . . . . . 8 ⊢ (𝑁 ∈ ℕ → (𝑥 ∈ (1...𝑁) ↔ (𝑥 ∈ (1...(𝑁 − 1)) ∨ 𝑥 = 𝑁))) |
5 | 4 | biimpa 477 | . . . . . . 7 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (1...𝑁)) → (𝑥 ∈ (1...(𝑁 − 1)) ∨ 𝑥 = 𝑁)) |
6 | 5 | ord 861 | . . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (1...𝑁)) → (¬ 𝑥 ∈ (1...(𝑁 − 1)) → 𝑥 = 𝑁)) |
7 | 1, 6 | sylan 580 | . . . . 5 ⊢ ((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) → (¬ 𝑥 ∈ (1...(𝑁 − 1)) → 𝑥 = 𝑁)) |
8 | eluzelz 12592 | . . . . . . . . . 10 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ∈ ℤ) | |
9 | gcdid 16234 | . . . . . . . . . 10 ⊢ (𝑁 ∈ ℤ → (𝑁 gcd 𝑁) = (abs‘𝑁)) | |
10 | 8, 9 | syl 17 | . . . . . . . . 9 ⊢ (𝑁 ∈ (ℤ≥‘2) → (𝑁 gcd 𝑁) = (abs‘𝑁)) |
11 | nnre 11980 | . . . . . . . . . . 11 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℝ) | |
12 | nnnn0 12240 | . . . . . . . . . . . 12 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℕ0) | |
13 | 12 | nn0ge0d 12296 | . . . . . . . . . . 11 ⊢ (𝑁 ∈ ℕ → 0 ≤ 𝑁) |
14 | 11, 13 | absidd 15134 | . . . . . . . . . 10 ⊢ (𝑁 ∈ ℕ → (abs‘𝑁) = 𝑁) |
15 | 1, 14 | syl 17 | . . . . . . . . 9 ⊢ (𝑁 ∈ (ℤ≥‘2) → (abs‘𝑁) = 𝑁) |
16 | 10, 15 | eqtrd 2778 | . . . . . . . 8 ⊢ (𝑁 ∈ (ℤ≥‘2) → (𝑁 gcd 𝑁) = 𝑁) |
17 | 1re 10975 | . . . . . . . . 9 ⊢ 1 ∈ ℝ | |
18 | eluz2gt1 12660 | . . . . . . . . 9 ⊢ (𝑁 ∈ (ℤ≥‘2) → 1 < 𝑁) | |
19 | ltne 11072 | . . . . . . . . 9 ⊢ ((1 ∈ ℝ ∧ 1 < 𝑁) → 𝑁 ≠ 1) | |
20 | 17, 18, 19 | sylancr 587 | . . . . . . . 8 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ≠ 1) |
21 | 16, 20 | eqnetrd 3011 | . . . . . . 7 ⊢ (𝑁 ∈ (ℤ≥‘2) → (𝑁 gcd 𝑁) ≠ 1) |
22 | oveq1 7282 | . . . . . . . 8 ⊢ (𝑥 = 𝑁 → (𝑥 gcd 𝑁) = (𝑁 gcd 𝑁)) | |
23 | 22 | neeq1d 3003 | . . . . . . 7 ⊢ (𝑥 = 𝑁 → ((𝑥 gcd 𝑁) ≠ 1 ↔ (𝑁 gcd 𝑁) ≠ 1)) |
24 | 21, 23 | syl5ibrcom 246 | . . . . . 6 ⊢ (𝑁 ∈ (ℤ≥‘2) → (𝑥 = 𝑁 → (𝑥 gcd 𝑁) ≠ 1)) |
25 | 24 | adantr 481 | . . . . 5 ⊢ ((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) → (𝑥 = 𝑁 → (𝑥 gcd 𝑁) ≠ 1)) |
26 | 7, 25 | syld 47 | . . . 4 ⊢ ((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) → (¬ 𝑥 ∈ (1...(𝑁 − 1)) → (𝑥 gcd 𝑁) ≠ 1)) |
27 | 26 | necon4bd 2963 | . . 3 ⊢ ((𝑁 ∈ (ℤ≥‘2) ∧ 𝑥 ∈ (1...𝑁)) → ((𝑥 gcd 𝑁) = 1 → 𝑥 ∈ (1...(𝑁 − 1)))) |
28 | 27 | ralrimiva 3103 | . 2 ⊢ (𝑁 ∈ (ℤ≥‘2) → ∀𝑥 ∈ (1...𝑁)((𝑥 gcd 𝑁) = 1 → 𝑥 ∈ (1...(𝑁 − 1)))) |
29 | rabss 4005 | . 2 ⊢ ({𝑥 ∈ (1...𝑁) ∣ (𝑥 gcd 𝑁) = 1} ⊆ (1...(𝑁 − 1)) ↔ ∀𝑥 ∈ (1...𝑁)((𝑥 gcd 𝑁) = 1 → 𝑥 ∈ (1...(𝑁 − 1)))) | |
30 | 28, 29 | sylibr 233 | 1 ⊢ (𝑁 ∈ (ℤ≥‘2) → {𝑥 ∈ (1...𝑁) ∣ (𝑥 gcd 𝑁) = 1} ⊆ (1...(𝑁 − 1))) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 396 ∨ wo 844 = wceq 1539 ∈ wcel 2106 ≠ wne 2943 ∀wral 3064 {crab 3068 ⊆ wss 3887 class class class wbr 5074 ‘cfv 6433 (class class class)co 7275 ℝcr 10870 1c1 10872 < clt 11009 − cmin 11205 ℕcn 11973 2c2 12028 ℤcz 12319 ℤ≥cuz 12582 ...cfz 13239 abscabs 14945 gcd cgcd 16201 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 ax-pre-sup 10949 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-sup 9201 df-inf 9202 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-div 11633 df-nn 11974 df-2 12036 df-3 12037 df-n0 12234 df-z 12320 df-uz 12583 df-rp 12731 df-fz 13240 df-seq 13722 df-exp 13783 df-cj 14810 df-re 14811 df-im 14812 df-sqrt 14946 df-abs 14947 df-dvds 15964 df-gcd 16202 |
This theorem is referenced by: phibnd 16472 dfphi2 16475 |
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