Mathbox for Stefan O'Rear |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > Mathboxes > dgraa0p | Structured version Visualization version GIF version |
Description: A rational polynomial of degree less than an algebraic number cannot be zero at that number unless it is the zero polynomial. (Contributed by Stefan O'Rear, 25-Nov-2014.) |
Ref | Expression |
---|---|
dgraa0p | ⊢ ((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) → ((𝑃‘𝐴) = 0 ↔ 𝑃 = 0𝑝)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl3 1195 | . . . . . 6 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ 𝑃 ≠ 0𝑝) → (deg‘𝑃) < (degAA‘𝐴)) | |
2 | simpl2 1194 | . . . . . . . . 9 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ 𝑃 ≠ 0𝑝) → 𝑃 ∈ (Poly‘ℚ)) | |
3 | dgrcl 25081 | . . . . . . . . 9 ⊢ (𝑃 ∈ (Poly‘ℚ) → (deg‘𝑃) ∈ ℕ0) | |
4 | 2, 3 | syl 17 | . . . . . . . 8 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ 𝑃 ≠ 0𝑝) → (deg‘𝑃) ∈ ℕ0) |
5 | 4 | nn0red 12116 | . . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ 𝑃 ≠ 0𝑝) → (deg‘𝑃) ∈ ℝ) |
6 | simpl1 1193 | . . . . . . . . 9 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ 𝑃 ≠ 0𝑝) → 𝐴 ∈ 𝔸) | |
7 | dgraacl 40615 | . . . . . . . . 9 ⊢ (𝐴 ∈ 𝔸 → (degAA‘𝐴) ∈ ℕ) | |
8 | 6, 7 | syl 17 | . . . . . . . 8 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ 𝑃 ≠ 0𝑝) → (degAA‘𝐴) ∈ ℕ) |
9 | 8 | nnred 11810 | . . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ 𝑃 ≠ 0𝑝) → (degAA‘𝐴) ∈ ℝ) |
10 | 5, 9 | ltnled 10944 | . . . . . 6 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ 𝑃 ≠ 0𝑝) → ((deg‘𝑃) < (degAA‘𝐴) ↔ ¬ (degAA‘𝐴) ≤ (deg‘𝑃))) |
11 | 1, 10 | mpbid 235 | . . . . 5 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ 𝑃 ≠ 0𝑝) → ¬ (degAA‘𝐴) ≤ (deg‘𝑃)) |
12 | simpl2 1194 | . . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ (𝑃 ≠ 0𝑝 ∧ (𝑃‘𝐴) = 0)) → 𝑃 ∈ (Poly‘ℚ)) | |
13 | simprl 771 | . . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ (𝑃 ≠ 0𝑝 ∧ (𝑃‘𝐴) = 0)) → 𝑃 ≠ 0𝑝) | |
14 | simpl1 1193 | . . . . . . . 8 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ (𝑃 ≠ 0𝑝 ∧ (𝑃‘𝐴) = 0)) → 𝐴 ∈ 𝔸) | |
15 | aacn 25164 | . . . . . . . 8 ⊢ (𝐴 ∈ 𝔸 → 𝐴 ∈ ℂ) | |
16 | 14, 15 | syl 17 | . . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ (𝑃 ≠ 0𝑝 ∧ (𝑃‘𝐴) = 0)) → 𝐴 ∈ ℂ) |
17 | simprr 773 | . . . . . . 7 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ (𝑃 ≠ 0𝑝 ∧ (𝑃‘𝐴) = 0)) → (𝑃‘𝐴) = 0) | |
18 | dgraaub 40617 | . . . . . . 7 ⊢ (((𝑃 ∈ (Poly‘ℚ) ∧ 𝑃 ≠ 0𝑝) ∧ (𝐴 ∈ ℂ ∧ (𝑃‘𝐴) = 0)) → (degAA‘𝐴) ≤ (deg‘𝑃)) | |
19 | 12, 13, 16, 17, 18 | syl22anc 839 | . . . . . 6 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ (𝑃 ≠ 0𝑝 ∧ (𝑃‘𝐴) = 0)) → (degAA‘𝐴) ≤ (deg‘𝑃)) |
20 | 19 | expr 460 | . . . . 5 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ 𝑃 ≠ 0𝑝) → ((𝑃‘𝐴) = 0 → (degAA‘𝐴) ≤ (deg‘𝑃))) |
21 | 11, 20 | mtod 201 | . . . 4 ⊢ (((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) ∧ 𝑃 ≠ 0𝑝) → ¬ (𝑃‘𝐴) = 0) |
22 | 21 | ex 416 | . . 3 ⊢ ((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) → (𝑃 ≠ 0𝑝 → ¬ (𝑃‘𝐴) = 0)) |
23 | 22 | necon4ad 2951 | . 2 ⊢ ((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) → ((𝑃‘𝐴) = 0 → 𝑃 = 0𝑝)) |
24 | 0pval 24522 | . . . . 5 ⊢ (𝐴 ∈ ℂ → (0𝑝‘𝐴) = 0) | |
25 | 15, 24 | syl 17 | . . . 4 ⊢ (𝐴 ∈ 𝔸 → (0𝑝‘𝐴) = 0) |
26 | fveq1 6694 | . . . . 5 ⊢ (𝑃 = 0𝑝 → (𝑃‘𝐴) = (0𝑝‘𝐴)) | |
27 | 26 | eqeq1d 2738 | . . . 4 ⊢ (𝑃 = 0𝑝 → ((𝑃‘𝐴) = 0 ↔ (0𝑝‘𝐴) = 0)) |
28 | 25, 27 | syl5ibrcom 250 | . . 3 ⊢ (𝐴 ∈ 𝔸 → (𝑃 = 0𝑝 → (𝑃‘𝐴) = 0)) |
29 | 28 | 3ad2ant1 1135 | . 2 ⊢ ((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) → (𝑃 = 0𝑝 → (𝑃‘𝐴) = 0)) |
30 | 23, 29 | impbid 215 | 1 ⊢ ((𝐴 ∈ 𝔸 ∧ 𝑃 ∈ (Poly‘ℚ) ∧ (deg‘𝑃) < (degAA‘𝐴)) → ((𝑃‘𝐴) = 0 ↔ 𝑃 = 0𝑝)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 399 ∧ w3a 1089 = wceq 1543 ∈ wcel 2112 ≠ wne 2932 class class class wbr 5039 ‘cfv 6358 ℂcc 10692 0cc0 10694 < clt 10832 ≤ cle 10833 ℕcn 11795 ℕ0cn0 12055 ℚcq 12509 0𝑝c0p 24520 Polycply 25032 degcdgr 25035 𝔸caa 25161 degAAcdgraa 40609 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-rep 5164 ax-sep 5177 ax-nul 5184 ax-pow 5243 ax-pr 5307 ax-un 7501 ax-inf2 9234 ax-cnex 10750 ax-resscn 10751 ax-1cn 10752 ax-icn 10753 ax-addcl 10754 ax-addrcl 10755 ax-mulcl 10756 ax-mulrcl 10757 ax-mulcom 10758 ax-addass 10759 ax-mulass 10760 ax-distr 10761 ax-i2m1 10762 ax-1ne0 10763 ax-1rid 10764 ax-rnegex 10765 ax-rrecex 10766 ax-cnre 10767 ax-pre-lttri 10768 ax-pre-lttrn 10769 ax-pre-ltadd 10770 ax-pre-mulgt0 10771 ax-pre-sup 10772 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-ne 2933 df-nel 3037 df-ral 3056 df-rex 3057 df-reu 3058 df-rmo 3059 df-rab 3060 df-v 3400 df-sbc 3684 df-csb 3799 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-pss 3872 df-nul 4224 df-if 4426 df-pw 4501 df-sn 4528 df-pr 4530 df-tp 4532 df-op 4534 df-uni 4806 df-int 4846 df-iun 4892 df-br 5040 df-opab 5102 df-mpt 5121 df-tr 5147 df-id 5440 df-eprel 5445 df-po 5453 df-so 5454 df-fr 5494 df-se 5495 df-we 5496 df-xp 5542 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-rn 5547 df-res 5548 df-ima 5549 df-pred 6140 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6316 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-isom 6367 df-riota 7148 df-ov 7194 df-oprab 7195 df-mpo 7196 df-of 7447 df-om 7623 df-1st 7739 df-2nd 7740 df-wrecs 8025 df-recs 8086 df-rdg 8124 df-1o 8180 df-er 8369 df-map 8488 df-pm 8489 df-en 8605 df-dom 8606 df-sdom 8607 df-fin 8608 df-sup 9036 df-inf 9037 df-oi 9104 df-card 9520 df-pnf 10834 df-mnf 10835 df-xr 10836 df-ltxr 10837 df-le 10838 df-sub 11029 df-neg 11030 df-div 11455 df-nn 11796 df-2 11858 df-3 11859 df-n0 12056 df-z 12142 df-uz 12404 df-q 12510 df-rp 12552 df-fz 13061 df-fzo 13204 df-fl 13332 df-mod 13408 df-seq 13540 df-exp 13601 df-hash 13862 df-cj 14627 df-re 14628 df-im 14629 df-sqrt 14763 df-abs 14764 df-clim 15014 df-rlim 15015 df-sum 15215 df-0p 24521 df-ply 25036 df-coe 25038 df-dgr 25039 df-aa 25162 df-dgraa 40611 |
This theorem is referenced by: mpaaeu 40619 |
Copyright terms: Public domain | W3C validator |