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Mirrors > Home > MPE Home > Th. List > Mathboxes > pellexlem4 | Structured version Visualization version GIF version |
Description: Lemma for pellex 40573. Invoking irrapx1 40566, we have infinitely many near-solutions. (Contributed by Stefan O'Rear, 14-Sep-2014.) |
Ref | Expression |
---|---|
pellexlem4 | ⊢ ((𝐷 ∈ ℕ ∧ ¬ (√‘𝐷) ∈ ℚ) → {〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))} ≈ ℕ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nnex 11909 | . . . . 5 ⊢ ℕ ∈ V | |
2 | 1, 1 | xpex 7581 | . . . 4 ⊢ (ℕ × ℕ) ∈ V |
3 | opabssxp 5669 | . . . 4 ⊢ {〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))} ⊆ (ℕ × ℕ) | |
4 | ssdomg 8741 | . . . 4 ⊢ ((ℕ × ℕ) ∈ V → ({〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))} ⊆ (ℕ × ℕ) → {〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))} ≼ (ℕ × ℕ))) | |
5 | 2, 3, 4 | mp2 9 | . . 3 ⊢ {〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))} ≼ (ℕ × ℕ) |
6 | xpnnen 15848 | . . 3 ⊢ (ℕ × ℕ) ≈ ℕ | |
7 | domentr 8754 | . . 3 ⊢ (({〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))} ≼ (ℕ × ℕ) ∧ (ℕ × ℕ) ≈ ℕ) → {〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))} ≼ ℕ) | |
8 | 5, 6, 7 | mp2an 688 | . 2 ⊢ {〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))} ≼ ℕ |
9 | nnrp 12670 | . . . . . . 7 ⊢ (𝐷 ∈ ℕ → 𝐷 ∈ ℝ+) | |
10 | 9 | rpsqrtcld 15051 | . . . . . 6 ⊢ (𝐷 ∈ ℕ → (√‘𝐷) ∈ ℝ+) |
11 | 10 | anim1i 614 | . . . . 5 ⊢ ((𝐷 ∈ ℕ ∧ ¬ (√‘𝐷) ∈ ℚ) → ((√‘𝐷) ∈ ℝ+ ∧ ¬ (√‘𝐷) ∈ ℚ)) |
12 | eldif 3893 | . . . . 5 ⊢ ((√‘𝐷) ∈ (ℝ+ ∖ ℚ) ↔ ((√‘𝐷) ∈ ℝ+ ∧ ¬ (√‘𝐷) ∈ ℚ)) | |
13 | 11, 12 | sylibr 233 | . . . 4 ⊢ ((𝐷 ∈ ℕ ∧ ¬ (√‘𝐷) ∈ ℚ) → (√‘𝐷) ∈ (ℝ+ ∖ ℚ)) |
14 | irrapx1 40566 | . . . 4 ⊢ ((√‘𝐷) ∈ (ℝ+ ∖ ℚ) → {𝑏 ∈ ℚ ∣ (0 < 𝑏 ∧ (abs‘(𝑏 − (√‘𝐷))) < ((denom‘𝑏)↑-2))} ≈ ℕ) | |
15 | ensym 8744 | . . . 4 ⊢ ({𝑏 ∈ ℚ ∣ (0 < 𝑏 ∧ (abs‘(𝑏 − (√‘𝐷))) < ((denom‘𝑏)↑-2))} ≈ ℕ → ℕ ≈ {𝑏 ∈ ℚ ∣ (0 < 𝑏 ∧ (abs‘(𝑏 − (√‘𝐷))) < ((denom‘𝑏)↑-2))}) | |
16 | 13, 14, 15 | 3syl 18 | . . 3 ⊢ ((𝐷 ∈ ℕ ∧ ¬ (√‘𝐷) ∈ ℚ) → ℕ ≈ {𝑏 ∈ ℚ ∣ (0 < 𝑏 ∧ (abs‘(𝑏 − (√‘𝐷))) < ((denom‘𝑏)↑-2))}) |
17 | pellexlem3 40569 | . . 3 ⊢ ((𝐷 ∈ ℕ ∧ ¬ (√‘𝐷) ∈ ℚ) → {𝑏 ∈ ℚ ∣ (0 < 𝑏 ∧ (abs‘(𝑏 − (√‘𝐷))) < ((denom‘𝑏)↑-2))} ≼ {〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))}) | |
18 | endomtr 8753 | . . 3 ⊢ ((ℕ ≈ {𝑏 ∈ ℚ ∣ (0 < 𝑏 ∧ (abs‘(𝑏 − (√‘𝐷))) < ((denom‘𝑏)↑-2))} ∧ {𝑏 ∈ ℚ ∣ (0 < 𝑏 ∧ (abs‘(𝑏 − (√‘𝐷))) < ((denom‘𝑏)↑-2))} ≼ {〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))}) → ℕ ≼ {〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))}) | |
19 | 16, 17, 18 | syl2anc 583 | . 2 ⊢ ((𝐷 ∈ ℕ ∧ ¬ (√‘𝐷) ∈ ℚ) → ℕ ≼ {〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))}) |
20 | sbth 8833 | . 2 ⊢ (({〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))} ≼ ℕ ∧ ℕ ≼ {〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))}) → {〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))} ≈ ℕ) | |
21 | 8, 19, 20 | sylancr 586 | 1 ⊢ ((𝐷 ∈ ℕ ∧ ¬ (√‘𝐷) ∈ ℚ) → {〈𝑦, 𝑧〉 ∣ ((𝑦 ∈ ℕ ∧ 𝑧 ∈ ℕ) ∧ (((𝑦↑2) − (𝐷 · (𝑧↑2))) ≠ 0 ∧ (abs‘((𝑦↑2) − (𝐷 · (𝑧↑2)))) < (1 + (2 · (√‘𝐷)))))} ≈ ℕ) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 ∈ wcel 2108 ≠ wne 2942 {crab 3067 Vcvv 3422 ∖ cdif 3880 ⊆ wss 3883 class class class wbr 5070 {copab 5132 × cxp 5578 ‘cfv 6418 (class class class)co 7255 ≈ cen 8688 ≼ cdom 8689 0cc0 10802 1c1 10803 + caddc 10805 · cmul 10807 < clt 10940 − cmin 11135 -cneg 11136 ℕcn 11903 2c2 11958 ℚcq 12617 ℝ+crp 12659 ↑cexp 13710 √csqrt 14872 abscabs 14873 denomcdenom 16366 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-inf2 9329 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 ax-pre-sup 10880 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-se 5536 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-isom 6427 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-oadd 8271 df-omul 8272 df-er 8456 df-map 8575 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-sup 9131 df-inf 9132 df-oi 9199 df-card 9628 df-acn 9631 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-div 11563 df-nn 11904 df-2 11966 df-3 11967 df-n0 12164 df-xnn0 12236 df-z 12250 df-uz 12512 df-q 12618 df-rp 12660 df-ico 13014 df-fz 13169 df-fl 13440 df-mod 13518 df-seq 13650 df-exp 13711 df-hash 13973 df-cj 14738 df-re 14739 df-im 14740 df-sqrt 14874 df-abs 14875 df-dvds 15892 df-gcd 16130 df-numer 16367 df-denom 16368 |
This theorem is referenced by: pellexlem5 40571 |
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