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Mirrors > Home > MPE Home > Th. List > Mathboxes > elpell14qr2 | Structured version Visualization version GIF version |
Description: A number is a positive Pell solution iff it is positive and a Pell solution, justifying our name choice. (Contributed by Stefan O'Rear, 19-Oct-2014.) |
Ref | Expression |
---|---|
elpell14qr2 | ⊢ (𝐷 ∈ (ℕ ∖ ◻NN) → (𝐴 ∈ (Pell14QR‘𝐷) ↔ (𝐴 ∈ (Pell1234QR‘𝐷) ∧ 0 < 𝐴))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pell14qrss1234 39473 | . . . 4 ⊢ (𝐷 ∈ (ℕ ∖ ◻NN) → (Pell14QR‘𝐷) ⊆ (Pell1234QR‘𝐷)) | |
2 | 1 | sselda 3967 | . . 3 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ 𝐴 ∈ (Pell14QR‘𝐷)) → 𝐴 ∈ (Pell1234QR‘𝐷)) |
3 | pell14qrgt0 39476 | . . 3 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ 𝐴 ∈ (Pell14QR‘𝐷)) → 0 < 𝐴) | |
4 | 2, 3 | jca 514 | . 2 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ 𝐴 ∈ (Pell14QR‘𝐷)) → (𝐴 ∈ (Pell1234QR‘𝐷) ∧ 0 < 𝐴)) |
5 | 0re 10643 | . . . . . . 7 ⊢ 0 ∈ ℝ | |
6 | pell1234qrre 39469 | . . . . . . 7 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ 𝐴 ∈ (Pell1234QR‘𝐷)) → 𝐴 ∈ ℝ) | |
7 | ltnsym 10738 | . . . . . . 7 ⊢ ((0 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (0 < 𝐴 → ¬ 𝐴 < 0)) | |
8 | 5, 6, 7 | sylancr 589 | . . . . . 6 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ 𝐴 ∈ (Pell1234QR‘𝐷)) → (0 < 𝐴 → ¬ 𝐴 < 0)) |
9 | 8 | impr 457 | . . . . 5 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ (𝐴 ∈ (Pell1234QR‘𝐷) ∧ 0 < 𝐴)) → ¬ 𝐴 < 0) |
10 | 6 | adantrr 715 | . . . . . 6 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ (𝐴 ∈ (Pell1234QR‘𝐷) ∧ 0 < 𝐴)) → 𝐴 ∈ ℝ) |
11 | 10 | lt0neg1d 11209 | . . . . 5 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ (𝐴 ∈ (Pell1234QR‘𝐷) ∧ 0 < 𝐴)) → (𝐴 < 0 ↔ 0 < -𝐴)) |
12 | 9, 11 | mtbid 326 | . . . 4 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ (𝐴 ∈ (Pell1234QR‘𝐷) ∧ 0 < 𝐴)) → ¬ 0 < -𝐴) |
13 | pell14qrgt0 39476 | . . . . . 6 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ -𝐴 ∈ (Pell14QR‘𝐷)) → 0 < -𝐴) | |
14 | 13 | ex 415 | . . . . 5 ⊢ (𝐷 ∈ (ℕ ∖ ◻NN) → (-𝐴 ∈ (Pell14QR‘𝐷) → 0 < -𝐴)) |
15 | 14 | adantr 483 | . . . 4 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ (𝐴 ∈ (Pell1234QR‘𝐷) ∧ 0 < 𝐴)) → (-𝐴 ∈ (Pell14QR‘𝐷) → 0 < -𝐴)) |
16 | 12, 15 | mtod 200 | . . 3 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ (𝐴 ∈ (Pell1234QR‘𝐷) ∧ 0 < 𝐴)) → ¬ -𝐴 ∈ (Pell14QR‘𝐷)) |
17 | pell1234qrdich 39478 | . . . 4 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ 𝐴 ∈ (Pell1234QR‘𝐷)) → (𝐴 ∈ (Pell14QR‘𝐷) ∨ -𝐴 ∈ (Pell14QR‘𝐷))) | |
18 | 17 | adantrr 715 | . . 3 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ (𝐴 ∈ (Pell1234QR‘𝐷) ∧ 0 < 𝐴)) → (𝐴 ∈ (Pell14QR‘𝐷) ∨ -𝐴 ∈ (Pell14QR‘𝐷))) |
19 | orel2 887 | . . 3 ⊢ (¬ -𝐴 ∈ (Pell14QR‘𝐷) → ((𝐴 ∈ (Pell14QR‘𝐷) ∨ -𝐴 ∈ (Pell14QR‘𝐷)) → 𝐴 ∈ (Pell14QR‘𝐷))) | |
20 | 16, 18, 19 | sylc 65 | . 2 ⊢ ((𝐷 ∈ (ℕ ∖ ◻NN) ∧ (𝐴 ∈ (Pell1234QR‘𝐷) ∧ 0 < 𝐴)) → 𝐴 ∈ (Pell14QR‘𝐷)) |
21 | 4, 20 | impbida 799 | 1 ⊢ (𝐷 ∈ (ℕ ∖ ◻NN) → (𝐴 ∈ (Pell14QR‘𝐷) ↔ (𝐴 ∈ (Pell1234QR‘𝐷) ∧ 0 < 𝐴))) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∧ wa 398 ∨ wo 843 ∈ wcel 2114 ∖ cdif 3933 class class class wbr 5066 ‘cfv 6355 ℝcr 10536 0cc0 10537 < clt 10675 -cneg 10871 ℕcn 11638 ◻NNcsquarenn 39453 Pell1234QRcpell1234qr 39455 Pell14QRcpell14qr 39456 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-cnex 10593 ax-resscn 10594 ax-1cn 10595 ax-icn 10596 ax-addcl 10597 ax-addrcl 10598 ax-mulcl 10599 ax-mulrcl 10600 ax-mulcom 10601 ax-addass 10602 ax-mulass 10603 ax-distr 10604 ax-i2m1 10605 ax-1ne0 10606 ax-1rid 10607 ax-rnegex 10608 ax-rrecex 10609 ax-cnre 10610 ax-pre-lttri 10611 ax-pre-lttrn 10612 ax-pre-ltadd 10613 ax-pre-mulgt0 10614 ax-pre-sup 10615 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4839 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-tr 5173 df-id 5460 df-eprel 5465 df-po 5474 df-so 5475 df-fr 5514 df-we 5516 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-pred 6148 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-om 7581 df-2nd 7690 df-wrecs 7947 df-recs 8008 df-rdg 8046 df-er 8289 df-en 8510 df-dom 8511 df-sdom 8512 df-sup 8906 df-pnf 10677 df-mnf 10678 df-xr 10679 df-ltxr 10680 df-le 10681 df-sub 10872 df-neg 10873 df-div 11298 df-nn 11639 df-2 11701 df-3 11702 df-n0 11899 df-z 11983 df-uz 12245 df-rp 12391 df-seq 13371 df-exp 13431 df-cj 14458 df-re 14459 df-im 14460 df-sqrt 14594 df-abs 14595 df-pell14qr 39460 df-pell1234qr 39461 |
This theorem is referenced by: pell14qrmulcl 39480 pell14qrreccl 39481 |
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