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| Mirrors > Home > MPE Home > Th. List > Mathboxes > ply1asclunit | Structured version Visualization version GIF version | ||
| Description: A nonzero scalar polynomial over a field 𝐹 is a unit. (Contributed by Thierry Arnoux, 22-Mar-2025.) |
| Ref | Expression |
|---|---|
| ply1asclunit.1 | ⊢ 𝑃 = (Poly1‘𝐹) |
| ply1asclunit.2 | ⊢ 𝐴 = (algSc‘𝑃) |
| ply1asclunit.3 | ⊢ 𝐵 = (Base‘𝐹) |
| ply1asclunit.4 | ⊢ 0 = (0g‘𝐹) |
| ply1asclunit.5 | ⊢ (𝜑 → 𝐹 ∈ Field) |
| ply1asclunit.6 | ⊢ (𝜑 → 𝑌 ∈ 𝐵) |
| ply1asclunit.7 | ⊢ (𝜑 → 𝑌 ≠ 0 ) |
| Ref | Expression |
|---|---|
| ply1asclunit | ⊢ (𝜑 → (𝐴‘𝑌) ∈ (Unit‘𝑃)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ply1asclunit.5 | . . . . 5 ⊢ (𝜑 → 𝐹 ∈ Field) | |
| 2 | 1 | fldcrngd 20831 | . . . 4 ⊢ (𝜑 → 𝐹 ∈ CRing) |
| 3 | ply1asclunit.1 | . . . . 5 ⊢ 𝑃 = (Poly1‘𝐹) | |
| 4 | 3 | ply1assa 22342 | . . . 4 ⊢ (𝐹 ∈ CRing → 𝑃 ∈ AssAlg) |
| 5 | ply1asclunit.2 | . . . . 5 ⊢ 𝐴 = (algSc‘𝑃) | |
| 6 | eqid 2770 | . . . . 5 ⊢ (Scalar‘𝑃) = (Scalar‘𝑃) | |
| 7 | 5, 6 | asclrhm 22023 | . . . 4 ⊢ (𝑃 ∈ AssAlg → 𝐴 ∈ ((Scalar‘𝑃) RingHom 𝑃)) |
| 8 | 2, 4, 7 | 3syl 19 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ((Scalar‘𝑃) RingHom 𝑃)) |
| 9 | 3 | ply1sca 22395 | . . . . 5 ⊢ (𝐹 ∈ Field → 𝐹 = (Scalar‘𝑃)) |
| 10 | 1, 9 | syl 18 | . . . 4 ⊢ (𝜑 → 𝐹 = (Scalar‘𝑃)) |
| 11 | 10 | oveq1d 7429 | . . 3 ⊢ (𝜑 → (𝐹 RingHom 𝑃) = ((Scalar‘𝑃) RingHom 𝑃)) |
| 12 | 8, 11 | eleqtrrd 2873 | . 2 ⊢ (𝜑 → 𝐴 ∈ (𝐹 RingHom 𝑃)) |
| 13 | 1 | flddrngd 20830 | . . 3 ⊢ (𝜑 → 𝐹 ∈ DivRing) |
| 14 | ply1asclunit.6 | . . 3 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
| 15 | ply1asclunit.7 | . . 3 ⊢ (𝜑 → 𝑌 ≠ 0 ) | |
| 16 | ply1asclunit.3 | . . . . 5 ⊢ 𝐵 = (Base‘𝐹) | |
| 17 | eqid 2770 | . . . . 5 ⊢ (Unit‘𝐹) = (Unit‘𝐹) | |
| 18 | ply1asclunit.4 | . . . . 5 ⊢ 0 = (0g‘𝐹) | |
| 19 | 16, 17, 18 | drngunit 20821 | . . . 4 ⊢ (𝐹 ∈ DivRing → (𝑌 ∈ (Unit‘𝐹) ↔ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 ))) |
| 20 | 19 | biimpar 482 | . . 3 ⊢ ((𝐹 ∈ DivRing ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → 𝑌 ∈ (Unit‘𝐹)) |
| 21 | 13, 14, 15, 20 | syl12anc 849 | . 2 ⊢ (𝜑 → 𝑌 ∈ (Unit‘𝐹)) |
| 22 | elrhmunit 20596 | . 2 ⊢ ((𝐴 ∈ (𝐹 RingHom 𝑃) ∧ 𝑌 ∈ (Unit‘𝐹)) → (𝐴‘𝑌) ∈ (Unit‘𝑃)) | |
| 23 | 12, 21, 22 | syl2anc 595 | 1 ⊢ (𝜑 → (𝐴‘𝑌) ∈ (Unit‘𝑃)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1568 ∈ wcel 2150 ≠ wne 2965 ‘cfv 6540 (class class class)co 7414 Basecbs 17272 Scalarcsca 17316 0gc0g 17495 CRingccrg 20319 Unitcui 20440 RingHom crh 20554 DivRingcdr 20816 Fieldcfield 20817 AssAlgcasa 21983 algSccascl 21985 Poly1cpl1 22320 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2152 ax-9 2160 ax-10 2183 ax-11 2199 ax-12 2220 ax-ext 2742 ax-rep 5243 ax-sep 5262 ax-nul 5274 ax-pow 5340 ax-pr 5408 ax-un 7736 ax-cnex 11159 ax-resscn 11160 ax-1cn 11161 ax-icn 11162 ax-addcl 11163 ax-addrcl 11164 ax-mulcl 11165 ax-mulrcl 11166 ax-mulcom 11167 ax-addass 11168 ax-mulass 11169 ax-distr 11170 ax-i2m1 11171 ax-1ne0 11172 ax-1rid 11173 ax-rnegex 11174 ax-rrecex 11175 ax-cnre 11176 ax-pre-lttri 11177 ax-pre-lttrn 11178 ax-pre-ltadd 11179 ax-pre-mulgt0 11180 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2099 df-mo 2574 df-eu 2604 df-clab 2749 df-cleq 2762 df-clel 2845 df-nfc 2919 df-ne 2966 df-nel 3072 df-ral 3087 df-rex 3097 df-rmo 3376 df-reu 3377 df-rab 3424 df-v 3464 df-sbc 3753 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3933 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-tp 4599 df-op 4601 df-uni 4878 df-int 4918 df-iun 4963 df-iin 4964 df-br 5115 df-opab 5179 df-mpt 5198 df-tr 5224 df-id 5560 df-eprel 5565 df-po 5573 df-so 5574 df-fr 5618 df-se 5619 df-we 5620 df-xp 5671 df-rel 5672 df-cnv 5673 df-co 5674 df-dm 5675 df-rn 5676 df-res 5677 df-ima 5678 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-isom 6549 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-of 7678 df-ofr 7679 df-om 7866 df-1st 7989 df-2nd 7990 df-supp 8160 df-tpos 8225 df-frecs 8281 df-wrecs 8312 df-recs 8361 df-rdg 8400 df-1o 8456 df-2o 8457 df-er 8697 df-map 8829 df-pm 8830 df-ixp 8899 df-en 8947 df-dom 8948 df-sdom 8949 df-fin 8950 df-fsupp 9325 df-sup 9405 df-oi 9475 df-card 9928 df-pnf 11248 df-mnf 11249 df-xr 11250 df-ltxr 11251 df-le 11252 df-sub 11446 df-neg 11447 df-nn 12237 df-2 12306 df-3 12307 df-4 12308 df-5 12309 df-6 12310 df-7 12311 df-8 12312 df-9 12313 df-n0 12508 df-z 12595 df-dec 12715 df-uz 12866 df-fz 13539 df-fzo 13686 df-seq 14041 df-hash 14370 df-struct 17210 df-sets 17227 df-slot 17245 df-ndx 17257 df-base 17273 df-ress 17294 df-plusg 17326 df-mulr 17327 df-sca 17329 df-vsca 17330 df-ip 17331 df-tset 17332 df-ple 17333 df-ds 17335 df-hom 17337 df-cco 17338 df-0g 17497 df-gsum 17498 df-prds 17503 df-pws 17505 df-mre 17641 df-mrc 17642 df-acs 17644 df-mgm 18701 df-sgrp 18780 df-mnd 18796 df-mhm 18844 df-submnd 18845 df-grp 19006 df-minusg 19007 df-sbg 19008 df-mulg 19137 df-subg 19192 df-ghm 19287 df-cntz 19390 df-cmn 19855 df-abl 19856 df-mgp 20220 df-rng 20234 df-ur 20267 df-ring 20320 df-cring 20321 df-oppr 20422 df-dvdsr 20442 df-unit 20443 df-rhm 20557 df-subrng 20634 df-subrg 20658 df-drng 20818 df-field 20819 df-lmod 20966 df-lss 21036 df-assa 21986 df-ascl 21988 df-psr 22042 df-mpl 22044 df-opsr 22046 df-psr1 22323 df-ply1 22325 |
| This theorem is referenced by: ply1unit 33835 minplyirredlem 34070 |
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