evlsmulval - Mathbox for Steven Nguyen

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Theorem evlsmulval 40286

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 21308	. . . . 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 19973	. . . 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 19810	. . 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 19981	. . . . . 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 7302	. . . . . 6 ⊢ (𝜑 → (𝐾 ↑_m 𝐼) ∈ V)
26	17, 24	rhmf 19980	. . . . . . . 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 6954	. . . . . 6 ⊢ (𝜑 → (𝑄‘𝑀) ∈ (Base‘(𝑆 ↑_s (𝐾 ↑_m 𝐼))))
29	27, 16	ffvelrnd 6954	. . . . . 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 17212	. . . . 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 6768	. . 3 ⊢ (𝜑 → ((𝑄‘(𝑀 ∙ 𝑁))‘𝐴) = (((𝑄‘𝑀) ∘_f · (𝑄‘𝑁))‘𝐴))
34	7, 8, 24, 2, 25, 28	pwselbas 17210	. . . . 5 ⊢ (𝜑 → (𝑄‘𝑀):(𝐾 ↑_m 𝐼)⟶𝐾)
35	34	ffnd 6593	. . . 4 ⊢ (𝜑 → (𝑄‘𝑀) Fn (𝐾 ↑_m 𝐼))
36	7, 8, 24, 2, 25, 29	pwselbas 17210	. . . . 5 ⊢ (𝜑 → (𝑄‘𝑁):(𝐾 ↑_m 𝐼)⟶𝐾)
37	36	ffnd 6593	. . . 4 ⊢ (𝜑 → (𝑄‘𝑁) Fn (𝐾 ↑_m 𝐼))
38		evlsaddval.a	. . . 4 ⊢ (𝜑 → 𝐴 ∈ (𝐾 ↑_m 𝐼))
39		fnfvof 7540	. . . 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 7285	. . 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 3429 Fn wfn 6421 ⟶wf 6422 ‘cfv 6426 (class class class)co 7267 ∘_f cof 7521 ↑_m cmap 8602 Basecbs 16922 ↾_s cress 16951 ._rcmulr 16973 ↑_s cpws 17167 Ringcrg 19793 CRingccrg 19794 RingHom crh 19966 SubRingcsubrg 20030 mPoly cmpl 21119 evalSub ces 21290

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 5208 ax-sep 5221 ax-nul 5228 ax-pow 5286 ax-pr 5350 ax-un 7578 ax-cnex 10937 ax-resscn 10938 ax-1cn 10939 ax-icn 10940 ax-addcl 10941 ax-addrcl 10942 ax-mulcl 10943 ax-mulrcl 10944 ax-mulcom 10945 ax-addass 10946 ax-mulass 10947 ax-distr 10948 ax-i2m1 10949 ax-1ne0 10950 ax-1rid 10951 ax-rnegex 10952 ax-rrecex 10953 ax-cnre 10954 ax-pre-lttri 10955 ax-pre-lttrn 10956 ax-pre-ltadd 10957 ax-pre-mulgt0 10958

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-reu 3071 df-rmo 3072 df-rab 3073 df-v 3431 df-sbc 3716 df-csb 3832 df-dif 3889 df-un 3891 df-in 3893 df-ss 3903 df-pss 3905 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 5074 df-opab 5136 df-mpt 5157 df-tr 5191 df-id 5484 df-eprel 5490 df-po 5498 df-so 5499 df-fr 5539 df-se 5540 df-we 5541 df-xp 5590 df-rel 5591 df-cnv 5592 df-co 5593 df-dm 5594 df-rn 5595 df-res 5596 df-ima 5597 df-pred 6195 df-ord 6262 df-on 6263 df-lim 6264 df-suc 6265 df-iota 6384 df-fun 6428 df-fn 6429 df-f 6430 df-f1 6431 df-fo 6432 df-f1o 6433 df-fv 6434 df-isom 6435 df-riota 7224 df-ov 7270 df-oprab 7271 df-mpo 7272 df-of 7523 df-ofr 7524 df-om 7703 df-1st 7820 df-2nd 7821 df-supp 7965 df-frecs 8084 df-wrecs 8115 df-recs 8189 df-rdg 8228 df-1o 8284 df-er 8485 df-map 8604 df-pm 8605 df-ixp 8673 df-en 8721 df-dom 8722 df-sdom 8723 df-fin 8724 df-fsupp 9116 df-sup 9188 df-oi 9256 df-card 9707 df-pnf 11021 df-mnf 11022 df-xr 11023 df-ltxr 11024 df-le 11025 df-sub 11217 df-neg 11218 df-nn 11984 df-2 12046 df-3 12047 df-4 12048 df-5 12049 df-6 12050 df-7 12051 df-8 12052 df-9 12053 df-n0 12244 df-z 12330 df-dec 12448 df-uz 12593 df-fz 13250 df-fzo 13393 df-seq 13732 df-hash 14055 df-struct 16858 df-sets 16875 df-slot 16893 df-ndx 16905 df-base 16923 df-ress 16952 df-plusg 16985 df-mulr 16986 df-sca 16988 df-vsca 16989 df-ip 16990 df-tset 16991 df-ple 16992 df-ds 16994 df-hom 16996 df-cco 16997 df-0g 17162 df-gsum 17163 df-prds 17168 df-pws 17170 df-mre 17305 df-mrc 17306 df-acs 17308 df-mgm 18336 df-sgrp 18385 df-mnd 18396 df-mhm 18440 df-submnd 18441 df-grp 18590 df-minusg 18591 df-sbg 18592 df-mulg 18711 df-subg 18762 df-ghm 18842 df-cntz 18933 df-cmn 19398 df-abl 19399 df-mgp 19731 df-ur 19748 df-srg 19752 df-ring 19795 df-cring 19796 df-rnghom 19969 df-subrg 20032 df-lmod 20135 df-lss 20204 df-lsp 20244 df-assa 21070 df-asp 21071 df-ascl 21072 df-psr 21122 df-mvr 21123 df-mpl 21124 df-evls 21292

This theorem is referenced by: mhphf 40293

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