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Theorem pm2mpf1lem 22712

Description: Lemma for pm2mpf1 22717. (Contributed by AV, 14-Oct-2019.) (Revised by AV, 4-Dec-2019.)

**Hypotheses**
Ref	Expression
pm2mpf1lem.p	⊢ 𝑃 = (Poly₁‘𝑅)
pm2mpf1lem.c	⊢ 𝐶 = (𝑁 Mat 𝑃)
pm2mpf1lem.b	⊢ 𝐵 = (Base‘𝐶)
pm2mpf1lem.m	⊢ ∗ = ( ·_𝑠 ‘𝑄)
pm2mpf1lem.e	⊢ ↑ = (._g‘(mulGrp‘𝑄))
pm2mpf1lem.x	⊢ 𝑋 = (var₁‘𝐴)
pm2mpf1lem.a	⊢ 𝐴 = (𝑁 Mat 𝑅)
pm2mpf1lem.q	⊢ 𝑄 = (Poly₁‘𝐴)

**Assertion**
Ref	Expression
pm2mpf1lem	⊢ (((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) → ((coe₁‘(𝑄 Σ_g (𝑘 ∈ ℕ₀ ↦ ((𝑈 decompPMat 𝑘) ∗ (𝑘 ↑ 𝑋)))))‘𝐾) = (𝑈 decompPMat 𝐾))

Distinct variable groups: 𝐴,𝑘 𝐵,𝑘 𝑘,𝐾 𝑘,𝑁 𝑄,𝑘 𝑅,𝑘 𝑈,𝑘 ∗ ,𝑘 ↑ ,𝑘 Allowed substitution hints: 𝐶(𝑘) 𝑃(𝑘) 𝑋(𝑘)

**Proof of Theorem pm2mpf1lem**
Step	Hyp	Ref	Expression
1		pm2mpf1lem.q	. . 3 ⊢ 𝑄 = (Poly₁‘𝐴)
2		eqid 2733	. . 3 ⊢ (Base‘𝑄) = (Base‘𝑄)
3		pm2mpf1lem.x	. . 3 ⊢ 𝑋 = (var₁‘𝐴)
4		pm2mpf1lem.e	. . 3 ⊢ ↑ = (._g‘(mulGrp‘𝑄))
5		pm2mpf1lem.a	. . . . 5 ⊢ 𝐴 = (𝑁 Mat 𝑅)
6	5	matring 22361	. . . 4 ⊢ ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → 𝐴 ∈ Ring)
7	6	adantr 480	. . 3 ⊢ (((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) → 𝐴 ∈ Ring)
8		eqid 2733	. . 3 ⊢ (Base‘𝐴) = (Base‘𝐴)
9		pm2mpf1lem.m	. . 3 ⊢ ∗ = ( ·_𝑠 ‘𝑄)
10		eqid 2733	. . 3 ⊢ (0_g‘𝐴) = (0_g‘𝐴)
11		simpllr 775	. . . . 5 ⊢ ((((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) ∧ 𝑘 ∈ ℕ₀) → 𝑅 ∈ Ring)
12		simplrl 776	. . . . 5 ⊢ ((((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) ∧ 𝑘 ∈ ℕ₀) → 𝑈 ∈ 𝐵)
13		simpr 484	. . . . 5 ⊢ ((((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) ∧ 𝑘 ∈ ℕ₀) → 𝑘 ∈ ℕ₀)
14		pm2mpf1lem.p	. . . . . 6 ⊢ 𝑃 = (Poly₁‘𝑅)
15		pm2mpf1lem.c	. . . . . 6 ⊢ 𝐶 = (𝑁 Mat 𝑃)
16		pm2mpf1lem.b	. . . . . 6 ⊢ 𝐵 = (Base‘𝐶)
17	14, 15, 16, 5, 8	decpmatcl 22685	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ 𝑈 ∈ 𝐵 ∧ 𝑘 ∈ ℕ₀) → (𝑈 decompPMat 𝑘) ∈ (Base‘𝐴))
18	11, 12, 13, 17	syl3anc 1373	. . . 4 ⊢ ((((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) ∧ 𝑘 ∈ ℕ₀) → (𝑈 decompPMat 𝑘) ∈ (Base‘𝐴))
19	18	ralrimiva 3125	. . 3 ⊢ (((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) → ∀𝑘 ∈ ℕ₀ (𝑈 decompPMat 𝑘) ∈ (Base‘𝐴))
20	14, 15, 16, 5, 10	decpmatfsupp 22687	. . . 4 ⊢ ((𝑅 ∈ Ring ∧ 𝑈 ∈ 𝐵) → (𝑘 ∈ ℕ₀ ↦ (𝑈 decompPMat 𝑘)) finSupp (0_g‘𝐴))
21	20	ad2ant2lr 748	. . 3 ⊢ (((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) → (𝑘 ∈ ℕ₀ ↦ (𝑈 decompPMat 𝑘)) finSupp (0_g‘𝐴))
22		simprr 772	. . 3 ⊢ (((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) → 𝐾 ∈ ℕ₀)
23	1, 2, 3, 4, 7, 8, 9, 10, 19, 21, 22	gsummoncoe1 22226	. 2 ⊢ (((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) → ((coe₁‘(𝑄 Σ_g (𝑘 ∈ ℕ₀ ↦ ((𝑈 decompPMat 𝑘) ∗ (𝑘 ↑ 𝑋)))))‘𝐾) = ⦋𝐾 / 𝑘⦌(𝑈 decompPMat 𝑘))
24		csbov2g 7402	. . 3 ⊢ (𝐾 ∈ ℕ₀ → ⦋𝐾 / 𝑘⦌(𝑈 decompPMat 𝑘) = (𝑈 decompPMat ⦋𝐾 / 𝑘⦌𝑘))
25	24	ad2antll 729	. 2 ⊢ (((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) → ⦋𝐾 / 𝑘⦌(𝑈 decompPMat 𝑘) = (𝑈 decompPMat ⦋𝐾 / 𝑘⦌𝑘))
26		csbvarg 4383	. . . 4 ⊢ (𝐾 ∈ ℕ₀ → ⦋𝐾 / 𝑘⦌𝑘 = 𝐾)
27	26	ad2antll 729	. . 3 ⊢ (((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) → ⦋𝐾 / 𝑘⦌𝑘 = 𝐾)
28	27	oveq2d 7370	. 2 ⊢ (((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) → (𝑈 decompPMat ⦋𝐾 / 𝑘⦌𝑘) = (𝑈 decompPMat 𝐾))
29	23, 25, 28	3eqtrd 2772	1 ⊢ (((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) ∧ (𝑈 ∈ 𝐵 ∧ 𝐾 ∈ ℕ₀)) → ((coe₁‘(𝑄 Σ_g (𝑘 ∈ ℕ₀ ↦ ((𝑈 decompPMat 𝑘) ∗ (𝑘 ↑ 𝑋)))))‘𝐾) = (𝑈 decompPMat 𝐾))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2113 ⦋csb 3846 class class class wbr 5095 ↦ cmpt 5176 ‘cfv 6488 (class class class)co 7354 Fincfn 8877 finSupp cfsupp 9254 ℕ₀cn0 12390 Basecbs 17124 ·_𝑠 cvsca 17169 0_gc0g 17347 Σ_g cgsu 17348 ._gcmg 18984 mulGrpcmgp 20062 Ringcrg 20155 var₁cv1 22091 Poly₁cpl1 22092 coe₁cco1 22093 Mat cmat 22325 decompPMat cdecpmat 22680

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2705 ax-rep 5221 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7676 ax-cnex 11071 ax-resscn 11072 ax-1cn 11073 ax-icn 11074 ax-addcl 11075 ax-addrcl 11076 ax-mulcl 11077 ax-mulrcl 11078 ax-mulcom 11079 ax-addass 11080 ax-mulass 11081 ax-distr 11082 ax-i2m1 11083 ax-1ne0 11084 ax-1rid 11085 ax-rnegex 11086 ax-rrecex 11087 ax-cnre 11088 ax-pre-lttri 11089 ax-pre-lttrn 11090 ax-pre-ltadd 11091 ax-pre-mulgt0 11092

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2882 df-ne 2930 df-nel 3034 df-ral 3049 df-rex 3058 df-rmo 3347 df-reu 3348 df-rab 3397 df-v 3439 df-sbc 3738 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3918 df-nul 4283 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-tp 4582 df-op 4584 df-ot 4586 df-uni 4861 df-int 4900 df-iun 4945 df-iin 4946 df-br 5096 df-opab 5158 df-mpt 5177 df-tr 5203 df-id 5516 df-eprel 5521 df-po 5529 df-so 5530 df-fr 5574 df-se 5575 df-we 5576 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-pred 6255 df-ord 6316 df-on 6317 df-lim 6318 df-suc 6319 df-iota 6444 df-fun 6490 df-fn 6491 df-f 6492 df-f1 6493 df-fo 6494 df-f1o 6495 df-fv 6496 df-isom 6497 df-riota 7311 df-ov 7357 df-oprab 7358 df-mpo 7359 df-of 7618 df-ofr 7619 df-om 7805 df-1st 7929 df-2nd 7930 df-supp 8099 df-frecs 8219 df-wrecs 8250 df-recs 8299 df-rdg 8337 df-1o 8393 df-2o 8394 df-er 8630 df-map 8760 df-pm 8761 df-ixp 8830 df-en 8878 df-dom 8879 df-sdom 8880 df-fin 8881 df-fsupp 9255 df-sup 9335 df-oi 9405 df-card 9841 df-pnf 11157 df-mnf 11158 df-xr 11159 df-ltxr 11160 df-le 11161 df-sub 11355 df-neg 11356 df-nn 12135 df-2 12197 df-3 12198 df-4 12199 df-5 12200 df-6 12201 df-7 12202 df-8 12203 df-9 12204 df-n0 12391 df-z 12478 df-dec 12597 df-uz 12741 df-fz 13412 df-fzo 13559 df-seq 13913 df-hash 14242 df-struct 17062 df-sets 17079 df-slot 17097 df-ndx 17109 df-base 17125 df-ress 17146 df-plusg 17178 df-mulr 17179 df-sca 17181 df-vsca 17182 df-ip 17183 df-tset 17184 df-ple 17185 df-ds 17187 df-hom 17189 df-cco 17190 df-0g 17349 df-gsum 17350 df-prds 17355 df-pws 17357 df-mre 17492 df-mrc 17493 df-acs 17495 df-mgm 18552 df-sgrp 18631 df-mnd 18647 df-mhm 18695 df-submnd 18696 df-grp 18853 df-minusg 18854 df-sbg 18855 df-mulg 18985 df-subg 19040 df-ghm 19129 df-cntz 19233 df-cmn 19698 df-abl 19699 df-mgp 20063 df-rng 20075 df-ur 20104 df-ring 20157 df-subrng 20465 df-subrg 20489 df-lmod 20799 df-lss 20869 df-sra 21111 df-rgmod 21112 df-dsmm 21673 df-frlm 21688 df-psr 21850 df-mvr 21851 df-mpl 21852 df-opsr 21854 df-psr1 22095 df-vr1 22096 df-ply1 22097 df-coe1 22098 df-mamu 22309 df-mat 22326 df-decpmat 22681

This theorem is referenced by: pm2mpf1 22717

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