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| Mirrors > Home > MPE Home > Th. List > ply1divalg | Structured version Visualization version GIF version | ||
| Description: The division algorithm for univariate polynomials over a ring. For polynomials 𝐹, 𝐺 such that 𝐺 ≠ 0 and the leading coefficient of 𝐺 is a unit, there are unique polynomials 𝑞 and 𝑟 = 𝐹 − (𝐺 · 𝑞) such that the degree of 𝑟 is less than the degree of 𝐺. (Contributed by Stefan O'Rear, 27-Mar-2015.) |
| Ref | Expression |
|---|---|
| ply1divalg.p | ⊢ 𝑃 = (Poly1‘𝑅) |
| ply1divalg.d | ⊢ 𝐷 = (deg1‘𝑅) |
| ply1divalg.b | ⊢ 𝐵 = (Base‘𝑃) |
| ply1divalg.m | ⊢ − = (-g‘𝑃) |
| ply1divalg.z | ⊢ 0 = (0g‘𝑃) |
| ply1divalg.t | ⊢ ∙ = (.r‘𝑃) |
| ply1divalg.r1 | ⊢ (𝜑 → 𝑅 ∈ Ring) |
| ply1divalg.f | ⊢ (𝜑 → 𝐹 ∈ 𝐵) |
| ply1divalg.g1 | ⊢ (𝜑 → 𝐺 ∈ 𝐵) |
| ply1divalg.g2 | ⊢ (𝜑 → 𝐺 ≠ 0 ) |
| ply1divalg.g3 | ⊢ (𝜑 → ((coe1‘𝐺)‘(𝐷‘𝐺)) ∈ 𝑈) |
| ply1divalg.u | ⊢ 𝑈 = (Unit‘𝑅) |
| Ref | Expression |
|---|---|
| ply1divalg | ⊢ (𝜑 → ∃!𝑞 ∈ 𝐵 (𝐷‘(𝐹 − (𝐺 ∙ 𝑞))) < (𝐷‘𝐺)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ply1divalg.p | . . 3 ⊢ 𝑃 = (Poly1‘𝑅) | |
| 2 | ply1divalg.d | . . 3 ⊢ 𝐷 = (deg1‘𝑅) | |
| 3 | ply1divalg.b | . . 3 ⊢ 𝐵 = (Base‘𝑃) | |
| 4 | ply1divalg.m | . . 3 ⊢ − = (-g‘𝑃) | |
| 5 | ply1divalg.z | . . 3 ⊢ 0 = (0g‘𝑃) | |
| 6 | ply1divalg.t | . . 3 ⊢ ∙ = (.r‘𝑃) | |
| 7 | ply1divalg.r1 | . . 3 ⊢ (𝜑 → 𝑅 ∈ Ring) | |
| 8 | ply1divalg.f | . . 3 ⊢ (𝜑 → 𝐹 ∈ 𝐵) | |
| 9 | ply1divalg.g1 | . . 3 ⊢ (𝜑 → 𝐺 ∈ 𝐵) | |
| 10 | ply1divalg.g2 | . . 3 ⊢ (𝜑 → 𝐺 ≠ 0 ) | |
| 11 | eqid 2756 | . . 3 ⊢ (1r‘𝑅) = (1r‘𝑅) | |
| 12 | eqid 2756 | . . 3 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
| 13 | eqid 2756 | . . 3 ⊢ (.r‘𝑅) = (.r‘𝑅) | |
| 14 | ply1divalg.g3 | . . . 4 ⊢ (𝜑 → ((coe1‘𝐺)‘(𝐷‘𝐺)) ∈ 𝑈) | |
| 15 | ply1divalg.u | . . . . 5 ⊢ 𝑈 = (Unit‘𝑅) | |
| 16 | eqid 2756 | . . . . 5 ⊢ (invr‘𝑅) = (invr‘𝑅) | |
| 17 | 15, 16, 12 | ringinvcl 20413 | . . . 4 ⊢ ((𝑅 ∈ Ring ∧ ((coe1‘𝐺)‘(𝐷‘𝐺)) ∈ 𝑈) → ((invr‘𝑅)‘((coe1‘𝐺)‘(𝐷‘𝐺))) ∈ (Base‘𝑅)) |
| 18 | 7, 14, 17 | syl2anc 592 | . . 3 ⊢ (𝜑 → ((invr‘𝑅)‘((coe1‘𝐺)‘(𝐷‘𝐺))) ∈ (Base‘𝑅)) |
| 19 | 15, 16, 13, 11 | unitrinv 20415 | . . . 4 ⊢ ((𝑅 ∈ Ring ∧ ((coe1‘𝐺)‘(𝐷‘𝐺)) ∈ 𝑈) → (((coe1‘𝐺)‘(𝐷‘𝐺))(.r‘𝑅)((invr‘𝑅)‘((coe1‘𝐺)‘(𝐷‘𝐺)))) = (1r‘𝑅)) |
| 20 | 7, 14, 19 | syl2anc 592 | . . 3 ⊢ (𝜑 → (((coe1‘𝐺)‘(𝐷‘𝐺))(.r‘𝑅)((invr‘𝑅)‘((coe1‘𝐺)‘(𝐷‘𝐺)))) = (1r‘𝑅)) |
| 21 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 18, 20 | ply1divex 26170 | . 2 ⊢ (𝜑 → ∃𝑞 ∈ 𝐵 (𝐷‘(𝐹 − (𝐺 ∙ 𝑞))) < (𝐷‘𝐺)) |
| 22 | eqid 2756 | . . . . . 6 ⊢ (RLReg‘𝑅) = (RLReg‘𝑅) | |
| 23 | 22, 15 | unitrrg 20725 | . . . . 5 ⊢ (𝑅 ∈ Ring → 𝑈 ⊆ (RLReg‘𝑅)) |
| 24 | 7, 23 | syl 17 | . . . 4 ⊢ (𝜑 → 𝑈 ⊆ (RLReg‘𝑅)) |
| 25 | 24, 14 | sseldd 3932 | . . 3 ⊢ (𝜑 → ((coe1‘𝐺)‘(𝐷‘𝐺)) ∈ (RLReg‘𝑅)) |
| 26 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 25, 22 | ply1divmo 26169 | . 2 ⊢ (𝜑 → ∃*𝑞 ∈ 𝐵 (𝐷‘(𝐹 − (𝐺 ∙ 𝑞))) < (𝐷‘𝐺)) |
| 27 | reu5 3363 | . 2 ⊢ (∃!𝑞 ∈ 𝐵 (𝐷‘(𝐹 − (𝐺 ∙ 𝑞))) < (𝐷‘𝐺) ↔ (∃𝑞 ∈ 𝐵 (𝐷‘(𝐹 − (𝐺 ∙ 𝑞))) < (𝐷‘𝐺) ∧ ∃*𝑞 ∈ 𝐵 (𝐷‘(𝐹 − (𝐺 ∙ 𝑞))) < (𝐷‘𝐺))) | |
| 28 | 21, 26, 27 | sylanbrc 591 | 1 ⊢ (𝜑 → ∃!𝑞 ∈ 𝐵 (𝐷‘(𝐹 − (𝐺 ∙ 𝑞))) < (𝐷‘𝐺)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1554 ∈ wcel 2136 ≠ wne 2951 ∃wrex 3080 ∃!wreu 3359 ∃*wrmo 3360 ⊆ wss 3899 class class class wbr 5094 ‘cfv 6510 (class class class)co 7385 < clt 11206 Basecbs 17221 .rcmulr 17263 0gc0g 17444 -gcsg 18953 1rcur 20203 Ringcrg 20255 Unitcui 20376 invrcinvr 20408 RLRegcrlreg 20713 Poly1cpl1 22212 coe1cco1 22213 deg1cdg1 26087 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1809 ax-4 1823 ax-5 1924 ax-6 1981 ax-7 2022 ax-8 2138 ax-9 2146 ax-10 2169 ax-11 2185 ax-12 2206 ax-ext 2728 ax-rep 5221 ax-sep 5240 ax-nul 5250 ax-pow 5316 ax-pr 5384 ax-un 7707 ax-cnex 11119 ax-resscn 11120 ax-1cn 11121 ax-icn 11122 ax-addcl 11123 ax-addrcl 11124 ax-mulcl 11125 ax-mulrcl 11126 ax-mulcom 11127 ax-addass 11128 ax-mulass 11129 ax-distr 11130 ax-i2m1 11131 ax-1ne0 11132 ax-1rid 11133 ax-rnegex 11134 ax-rrecex 11135 ax-cnre 11136 ax-pre-lttri 11137 ax-pre-lttrn 11138 ax-pre-ltadd 11139 ax-pre-mulgt0 11140 ax-pre-sup 11141 ax-addf 11142 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-3or 1096 df-3an 1097 df-tru 1557 df-fal 1567 df-ex 1794 df-nf 1798 df-sb 2085 df-mo 2560 df-eu 2590 df-clab 2735 df-cleq 2748 df-clel 2831 df-nfc 2905 df-ne 2952 df-nel 3056 df-ral 3071 df-rex 3081 df-rmo 3361 df-reu 3362 df-rab 3409 df-v 3450 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4281 df-if 4475 df-pw 4551 df-sn 4577 df-pr 4579 df-tp 4581 df-op 4583 df-uni 4860 df-int 4900 df-iun 4945 df-iin 4946 df-br 5095 df-opab 5157 df-mpt 5176 df-tr 5202 df-id 5535 df-eprel 5540 df-po 5548 df-so 5549 df-fr 5593 df-se 5594 df-we 5595 df-xp 5646 df-rel 5647 df-cnv 5648 df-co 5649 df-dm 5650 df-rn 5651 df-res 5652 df-ima 5653 df-pred 6277 df-ord 6338 df-on 6339 df-lim 6340 df-suc 6341 df-iota 6466 df-fun 6512 df-fn 6513 df-f 6514 df-f1 6515 df-fo 6516 df-f1o 6517 df-fv 6518 df-isom 6519 df-riota 7342 df-ov 7388 df-oprab 7389 df-mpo 7390 df-of 7649 df-ofr 7650 df-om 7836 df-1st 7959 df-2nd 7960 df-supp 8129 df-tpos 8194 df-frecs 8250 df-wrecs 8281 df-recs 8330 df-rdg 8369 df-1o 8425 df-2o 8426 df-er 8666 df-map 8798 df-pm 8799 df-ixp 8869 df-en 8917 df-dom 8918 df-sdom 8919 df-fin 8920 df-fsupp 9298 df-sup 9378 df-oi 9448 df-card 9887 df-pnf 11208 df-mnf 11209 df-xr 11210 df-ltxr 11211 df-le 11212 df-sub 11406 df-neg 11407 df-nn 12201 df-2 12270 df-3 12271 df-4 12272 df-5 12273 df-6 12274 df-7 12275 df-8 12276 df-9 12277 df-n0 12472 df-z 12559 df-dec 12679 df-uz 12830 df-fz 13503 df-fzo 13650 df-seq 14005 df-hash 14334 df-struct 17159 df-sets 17176 df-slot 17194 df-ndx 17206 df-base 17222 df-ress 17243 df-plusg 17275 df-mulr 17276 df-starv 17277 df-sca 17278 df-vsca 17279 df-ip 17280 df-tset 17281 df-ple 17282 df-ds 17284 df-unif 17285 df-hom 17286 df-cco 17287 df-0g 17446 df-gsum 17447 df-prds 17452 df-pws 17454 df-mre 17590 df-mrc 17591 df-acs 17593 df-mgm 18650 df-sgrp 18729 df-mnd 18745 df-mhm 18793 df-submnd 18794 df-grp 18954 df-minusg 18955 df-sbg 18956 df-mulg 19086 df-subg 19141 df-ghm 19230 df-cntz 19333 df-cmn 19798 df-abl 19799 df-mgp 20163 df-rng 20175 df-ur 20204 df-ring 20257 df-cring 20258 df-oppr 20358 df-dvdsr 20378 df-unit 20379 df-invr 20409 df-subrng 20568 df-subrg 20592 df-rlreg 20716 df-lmod 20902 df-lss 20972 df-cnfld 21398 df-psr 21934 df-mvr 21935 df-mpl 21936 df-opsr 21938 df-psr1 22215 df-vr1 22216 df-ply1 22217 df-coe1 22218 df-mdeg 26088 df-deg1 26089 |
| This theorem is referenced by: ply1divalg2 26172 |
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