evlsmulval - Mathbox for Steven Nguyen

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Theorem evlsmulval 40278

Description: Polynomial evaluation builder for multiplication. (Contributed by SN, 27-Jul-2024.)

**Hypotheses**
Ref	Expression
evlsaddval.q	⊢ 𝑄 = ((𝐼 evalSub 𝑆)‘𝑅)
evlsaddval.p	⊢ 𝑃 = (𝐼 mPoly 𝑈)
evlsaddval.u	⊢ 𝑈 = (𝑆 ↾_s 𝑅)
evlsaddval.k	⊢ 𝐾 = (Base‘𝑆)
evlsaddval.b	⊢ 𝐵 = (Base‘𝑃)
evlsaddval.i	⊢ (𝜑 → 𝐼 ∈ 𝑍)
evlsaddval.s	⊢ (𝜑 → 𝑆 ∈ CRing)
evlsaddval.r	⊢ (𝜑 → 𝑅 ∈ (SubRing‘𝑆))
evlsaddval.a	⊢ (𝜑 → 𝐴 ∈ (𝐾 ↑_m 𝐼))
evlsaddval.m	⊢ (𝜑 → (𝑀 ∈ 𝐵 ∧ ((𝑄‘𝑀)‘𝐴) = 𝑉))
evlsaddval.n	⊢ (𝜑 → (𝑁 ∈ 𝐵 ∧ ((𝑄‘𝑁)‘𝐴) = 𝑊))
evlsmulval.g	⊢ ∙ = (._r‘𝑃)
evlsmulval.f	⊢ · = (._r‘𝑆)

**Assertion**
Ref	Expression
evlsmulval	⊢ (𝜑 → ((𝑀 ∙ 𝑁) ∈ 𝐵 ∧ ((𝑄‘(𝑀 ∙ 𝑁))‘𝐴) = (𝑉 · 𝑊)))

**Proof of Theorem evlsmulval**
Step	Hyp	Ref	Expression
1		evlsaddval.i	. . . . 5 ⊢ (𝜑 → 𝐼 ∈ 𝑍)
2		evlsaddval.s	. . . . 5 ⊢ (𝜑 → 𝑆 ∈ CRing)
3		evlsaddval.r	. . . . 5 ⊢ (𝜑 → 𝑅 ∈ (SubRing‘𝑆))
4		evlsaddval.q	. . . . . 6 ⊢ 𝑄 = ((𝐼 evalSub 𝑆)‘𝑅)
5		evlsaddval.p	. . . . . 6 ⊢ 𝑃 = (𝐼 mPoly 𝑈)
6		evlsaddval.u	. . . . . 6 ⊢ 𝑈 = (𝑆 ↾_s 𝑅)
7		eqid 2738	. . . . . 6 ⊢ (𝑆 ↑_s (𝐾 ↑_m 𝐼)) = (𝑆 ↑_s (𝐾 ↑_m 𝐼))
8		evlsaddval.k	. . . . . 6 ⊢ 𝐾 = (Base‘𝑆)
9	4, 5, 6, 7, 8	evlsrhm 21298	. . . . 5 ⊢ ((𝐼 ∈ 𝑍 ∧ 𝑆 ∈ CRing ∧ 𝑅 ∈ (SubRing‘𝑆)) → 𝑄 ∈ (𝑃 RingHom (𝑆 ↑_s (𝐾 ↑_m 𝐼))))
10	1, 2, 3, 9	syl3anc 1370	. . . 4 ⊢ (𝜑 → 𝑄 ∈ (𝑃 RingHom (𝑆 ↑_s (𝐾 ↑_m 𝐼))))
11		rhmrcl1 19963	. . . 4 ⊢ (𝑄 ∈ (𝑃 RingHom (𝑆 ↑_s (𝐾 ↑_m 𝐼))) → 𝑃 ∈ Ring)
12	10, 11	syl 17	. . 3 ⊢ (𝜑 → 𝑃 ∈ Ring)
13		evlsaddval.m	. . . 4 ⊢ (𝜑 → (𝑀 ∈ 𝐵 ∧ ((𝑄‘𝑀)‘𝐴) = 𝑉))
14	13	simpld 495	. . 3 ⊢ (𝜑 → 𝑀 ∈ 𝐵)
15		evlsaddval.n	. . . 4 ⊢ (𝜑 → (𝑁 ∈ 𝐵 ∧ ((𝑄‘𝑁)‘𝐴) = 𝑊))
16	15	simpld 495	. . 3 ⊢ (𝜑 → 𝑁 ∈ 𝐵)
17		evlsaddval.b	. . . 4 ⊢ 𝐵 = (Base‘𝑃)
18		evlsmulval.g	. . . 4 ⊢ ∙ = (._r‘𝑃)
19	17, 18	ringcl 19800	. . 3 ⊢ ((𝑃 ∈ Ring ∧ 𝑀 ∈ 𝐵 ∧ 𝑁 ∈ 𝐵) → (𝑀 ∙ 𝑁) ∈ 𝐵)
20	12, 14, 16, 19	syl3anc 1370	. 2 ⊢ (𝜑 → (𝑀 ∙ 𝑁) ∈ 𝐵)
21		eqid 2738	. . . . . . 7 ⊢ (._r‘(𝑆 ↑_s (𝐾 ↑_m 𝐼))) = (._r‘(𝑆 ↑_s (𝐾 ↑_m 𝐼)))
22	17, 18, 21	rhmmul 19971	. . . . . 6 ⊢ ((𝑄 ∈ (𝑃 RingHom (𝑆 ↑_s (𝐾 ↑_m 𝐼))) ∧ 𝑀 ∈ 𝐵 ∧ 𝑁 ∈ 𝐵) → (𝑄‘(𝑀 ∙ 𝑁)) = ((𝑄‘𝑀)(._r‘(𝑆 ↑_s (𝐾 ↑_m 𝐼)))(𝑄‘𝑁)))
23	10, 14, 16, 22	syl3anc 1370	. . . . 5 ⊢ (𝜑 → (𝑄‘(𝑀 ∙ 𝑁)) = ((𝑄‘𝑀)(._r‘(𝑆 ↑_s (𝐾 ↑_m 𝐼)))(𝑄‘𝑁)))
24		eqid 2738	. . . . . 6 ⊢ (Base‘(𝑆 ↑_s (𝐾 ↑_m 𝐼))) = (Base‘(𝑆 ↑_s (𝐾 ↑_m 𝐼)))
25		ovexd 7310	. . . . . 6 ⊢ (𝜑 → (𝐾 ↑_m 𝐼) ∈ V)
26	17, 24	rhmf 19970	. . . . . . . 8 ⊢ (𝑄 ∈ (𝑃 RingHom (𝑆 ↑_s (𝐾 ↑_m 𝐼))) → 𝑄:𝐵⟶(Base‘(𝑆 ↑_s (𝐾 ↑_m 𝐼))))
27	10, 26	syl 17	. . . . . . 7 ⊢ (𝜑 → 𝑄:𝐵⟶(Base‘(𝑆 ↑_s (𝐾 ↑_m 𝐼))))
28	27, 14	ffvelrnd 6962	. . . . . 6 ⊢ (𝜑 → (𝑄‘𝑀) ∈ (Base‘(𝑆 ↑_s (𝐾 ↑_m 𝐼))))
29	27, 16	ffvelrnd 6962	. . . . . 6 ⊢ (𝜑 → (𝑄‘𝑁) ∈ (Base‘(𝑆 ↑_s (𝐾 ↑_m 𝐼))))
30		evlsmulval.f	. . . . . 6 ⊢ · = (._r‘𝑆)
31	7, 24, 2, 25, 28, 29, 30, 21	pwsmulrval 17202	. . . . 5 ⊢ (𝜑 → ((𝑄‘𝑀)(._r‘(𝑆 ↑_s (𝐾 ↑_m 𝐼)))(𝑄‘𝑁)) = ((𝑄‘𝑀) ∘_f · (𝑄‘𝑁)))
32	23, 31	eqtrd 2778	. . . 4 ⊢ (𝜑 → (𝑄‘(𝑀 ∙ 𝑁)) = ((𝑄‘𝑀) ∘_f · (𝑄‘𝑁)))
33	32	fveq1d 6776	. . 3 ⊢ (𝜑 → ((𝑄‘(𝑀 ∙ 𝑁))‘𝐴) = (((𝑄‘𝑀) ∘_f · (𝑄‘𝑁))‘𝐴))
34	7, 8, 24, 2, 25, 28	pwselbas 17200	. . . . 5 ⊢ (𝜑 → (𝑄‘𝑀):(𝐾 ↑_m 𝐼)⟶𝐾)
35	34	ffnd 6601	. . . 4 ⊢ (𝜑 → (𝑄‘𝑀) Fn (𝐾 ↑_m 𝐼))
36	7, 8, 24, 2, 25, 29	pwselbas 17200	. . . . 5 ⊢ (𝜑 → (𝑄‘𝑁):(𝐾 ↑_m 𝐼)⟶𝐾)
37	36	ffnd 6601	. . . 4 ⊢ (𝜑 → (𝑄‘𝑁) Fn (𝐾 ↑_m 𝐼))
38		evlsaddval.a	. . . 4 ⊢ (𝜑 → 𝐴 ∈ (𝐾 ↑_m 𝐼))
39		fnfvof 7550	. . . 4 ⊢ ((((𝑄‘𝑀) Fn (𝐾 ↑_m 𝐼) ∧ (𝑄‘𝑁) Fn (𝐾 ↑_m 𝐼)) ∧ ((𝐾 ↑_m 𝐼) ∈ V ∧ 𝐴 ∈ (𝐾 ↑_m 𝐼))) → (((𝑄‘𝑀) ∘_f · (𝑄‘𝑁))‘𝐴) = (((𝑄‘𝑀)‘𝐴) · ((𝑄‘𝑁)‘𝐴)))
40	35, 37, 25, 38, 39	syl22anc 836	. . 3 ⊢ (𝜑 → (((𝑄‘𝑀) ∘_f · (𝑄‘𝑁))‘𝐴) = (((𝑄‘𝑀)‘𝐴) · ((𝑄‘𝑁)‘𝐴)))
41	13	simprd 496	. . . 4 ⊢ (𝜑 → ((𝑄‘𝑀)‘𝐴) = 𝑉)
42	15	simprd 496	. . . 4 ⊢ (𝜑 → ((𝑄‘𝑁)‘𝐴) = 𝑊)
43	41, 42	oveq12d 7293	. . 3 ⊢ (𝜑 → (((𝑄‘𝑀)‘𝐴) · ((𝑄‘𝑁)‘𝐴)) = (𝑉 · 𝑊))
44	33, 40, 43	3eqtrd 2782	. 2 ⊢ (𝜑 → ((𝑄‘(𝑀 ∙ 𝑁))‘𝐴) = (𝑉 · 𝑊))
45	20, 44	jca 512	1 ⊢ (𝜑 → ((𝑀 ∙ 𝑁) ∈ 𝐵 ∧ ((𝑄‘(𝑀 ∙ 𝑁))‘𝐴) = (𝑉 · 𝑊)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 396 = wceq 1539 ∈ wcel 2106 Vcvv 3432 Fn wfn 6428 ⟶wf 6429 ‘cfv 6433 (class class class)co 7275 ∘_f cof 7531 ↑_m cmap 8615 Basecbs 16912 ↾_s cress 16941 ._rcmulr 16963 ↑_s cpws 17157 Ringcrg 19783 CRingccrg 19784 RingHom crh 19956 SubRingcsubrg 20020 mPoly cmpl 21109 evalSub ces 21280

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948

This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-tp 4566 df-op 4568 df-uni 4840 df-int 4880 df-iun 4926 df-iin 4927 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-se 5545 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-isom 6442 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-of 7533 df-ofr 7534 df-om 7713 df-1st 7831 df-2nd 7832 df-supp 7978 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-er 8498 df-map 8617 df-pm 8618 df-ixp 8686 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-fsupp 9129 df-sup 9201 df-oi 9269 df-card 9697 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-2 12036 df-3 12037 df-4 12038 df-5 12039 df-6 12040 df-7 12041 df-8 12042 df-9 12043 df-n0 12234 df-z 12320 df-dec 12438 df-uz 12583 df-fz 13240 df-fzo 13383 df-seq 13722 df-hash 14045 df-struct 16848 df-sets 16865 df-slot 16883 df-ndx 16895 df-base 16913 df-ress 16942 df-plusg 16975 df-mulr 16976 df-sca 16978 df-vsca 16979 df-ip 16980 df-tset 16981 df-ple 16982 df-ds 16984 df-hom 16986 df-cco 16987 df-0g 17152 df-gsum 17153 df-prds 17158 df-pws 17160 df-mre 17295 df-mrc 17296 df-acs 17298 df-mgm 18326 df-sgrp 18375 df-mnd 18386 df-mhm 18430 df-submnd 18431 df-grp 18580 df-minusg 18581 df-sbg 18582 df-mulg 18701 df-subg 18752 df-ghm 18832 df-cntz 18923 df-cmn 19388 df-abl 19389 df-mgp 19721 df-ur 19738 df-srg 19742 df-ring 19785 df-cring 19786 df-rnghom 19959 df-subrg 20022 df-lmod 20125 df-lss 20194 df-lsp 20234 df-assa 21060 df-asp 21061 df-ascl 21062 df-psr 21112 df-mvr 21113 df-mpl 21114 df-evls 21282

This theorem is referenced by: mhphf 40285

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