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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 20721 | . . . 4 ⊢ (𝜑 → 𝐹 ∈ CRing) |
| 3 | ply1asclunit.1 | . . . . 5 ⊢ 𝑃 = (Poly1‘𝐹) | |
| 4 | 3 | ply1assa 22165 | . . . 4 ⊢ (𝐹 ∈ CRing → 𝑃 ∈ AssAlg) |
| 5 | ply1asclunit.2 | . . . . 5 ⊢ 𝐴 = (algSc‘𝑃) | |
| 6 | eqid 2737 | . . . . 5 ⊢ (Scalar‘𝑃) = (Scalar‘𝑃) | |
| 7 | 5, 6 | asclrhm 21872 | . . . 4 ⊢ (𝑃 ∈ AssAlg → 𝐴 ∈ ((Scalar‘𝑃) RingHom 𝑃)) |
| 8 | 2, 4, 7 | 3syl 18 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ((Scalar‘𝑃) RingHom 𝑃)) |
| 9 | 3 | ply1sca 22218 | . . . . 5 ⊢ (𝐹 ∈ Field → 𝐹 = (Scalar‘𝑃)) |
| 10 | 1, 9 | syl 17 | . . . 4 ⊢ (𝜑 → 𝐹 = (Scalar‘𝑃)) |
| 11 | 10 | oveq1d 7384 | . . 3 ⊢ (𝜑 → (𝐹 RingHom 𝑃) = ((Scalar‘𝑃) RingHom 𝑃)) |
| 12 | 8, 11 | eleqtrrd 2840 | . 2 ⊢ (𝜑 → 𝐴 ∈ (𝐹 RingHom 𝑃)) |
| 13 | 1 | flddrngd 20720 | . . 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 2737 | . . . . 5 ⊢ (Unit‘𝐹) = (Unit‘𝐹) | |
| 18 | ply1asclunit.4 | . . . . 5 ⊢ 0 = (0g‘𝐹) | |
| 19 | 16, 17, 18 | drngunit 20713 | . . . 4 ⊢ (𝐹 ∈ DivRing → (𝑌 ∈ (Unit‘𝐹) ↔ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 ))) |
| 20 | 19 | biimpar 477 | . . 3 ⊢ ((𝐹 ∈ DivRing ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≠ 0 )) → 𝑌 ∈ (Unit‘𝐹)) |
| 21 | 13, 14, 15, 20 | syl12anc 837 | . 2 ⊢ (𝜑 → 𝑌 ∈ (Unit‘𝐹)) |
| 22 | elrhmunit 20489 | . 2 ⊢ ((𝐴 ∈ (𝐹 RingHom 𝑃) ∧ 𝑌 ∈ (Unit‘𝐹)) → (𝐴‘𝑌) ∈ (Unit‘𝑃)) | |
| 23 | 12, 21, 22 | syl2anc 585 | 1 ⊢ (𝜑 → (𝐴‘𝑌) ∈ (Unit‘𝑃)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ≠ wne 2933 ‘cfv 6500 (class class class)co 7369 Basecbs 17181 Scalarcsca 17225 0gc0g 17404 CRingccrg 20217 Unitcui 20337 RingHom crh 20451 DivRingcdr 20708 Fieldcfield 20709 AssAlgcasa 21832 algSccascl 21834 Poly1cpl1 22142 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5213 ax-sep 5232 ax-nul 5242 ax-pow 5308 ax-pr 5376 ax-un 7691 ax-cnex 11096 ax-resscn 11097 ax-1cn 11098 ax-icn 11099 ax-addcl 11100 ax-addrcl 11101 ax-mulcl 11102 ax-mulrcl 11103 ax-mulcom 11104 ax-addass 11105 ax-mulass 11106 ax-distr 11107 ax-i2m1 11108 ax-1ne0 11109 ax-1rid 11110 ax-rnegex 11111 ax-rrecex 11112 ax-cnre 11113 ax-pre-lttri 11114 ax-pre-lttrn 11115 ax-pre-ltadd 11116 ax-pre-mulgt0 11117 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-tp 4573 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-iin 4937 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5527 df-eprel 5532 df-po 5540 df-so 5541 df-fr 5585 df-se 5586 df-we 5587 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-pred 6267 df-ord 6328 df-on 6329 df-lim 6330 df-suc 6331 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-isom 6509 df-riota 7326 df-ov 7372 df-oprab 7373 df-mpo 7374 df-of 7633 df-ofr 7634 df-om 7820 df-1st 7944 df-2nd 7945 df-supp 8113 df-tpos 8178 df-frecs 8233 df-wrecs 8264 df-recs 8313 df-rdg 8351 df-1o 8407 df-2o 8408 df-er 8645 df-map 8777 df-pm 8778 df-ixp 8848 df-en 8896 df-dom 8897 df-sdom 8898 df-fin 8899 df-fsupp 9277 df-sup 9357 df-oi 9427 df-card 9865 df-pnf 11183 df-mnf 11184 df-xr 11185 df-ltxr 11186 df-le 11187 df-sub 11381 df-neg 11382 df-nn 12177 df-2 12246 df-3 12247 df-4 12248 df-5 12249 df-6 12250 df-7 12251 df-8 12252 df-9 12253 df-n0 12440 df-z 12527 df-dec 12647 df-uz 12791 df-fz 13464 df-fzo 13611 df-seq 13966 df-hash 14295 df-struct 17119 df-sets 17136 df-slot 17154 df-ndx 17166 df-base 17182 df-ress 17203 df-plusg 17235 df-mulr 17236 df-sca 17238 df-vsca 17239 df-ip 17240 df-tset 17241 df-ple 17242 df-ds 17244 df-hom 17246 df-cco 17247 df-0g 17406 df-gsum 17407 df-prds 17412 df-pws 17414 df-mre 17550 df-mrc 17551 df-acs 17553 df-mgm 18610 df-sgrp 18689 df-mnd 18705 df-mhm 18753 df-submnd 18754 df-grp 18914 df-minusg 18915 df-sbg 18916 df-mulg 19046 df-subg 19101 df-ghm 19190 df-cntz 19294 df-cmn 19759 df-abl 19760 df-mgp 20124 df-rng 20136 df-ur 20165 df-ring 20218 df-cring 20219 df-oppr 20319 df-dvdsr 20339 df-unit 20340 df-rhm 20454 df-subrng 20525 df-subrg 20549 df-drng 20710 df-field 20711 df-lmod 20859 df-lss 20929 df-assa 21835 df-ascl 21837 df-psr 21891 df-mpl 21893 df-opsr 21895 df-psr1 22145 df-ply1 22147 |
| This theorem is referenced by: ply1unit 33637 minplyirredlem 33856 |
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