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Theorem pmatcollpwfi 21387
 Description: Write a polynomial matrix (over a commutative ring) as a finite sum of products of variable powers and constant matrices with scalar entries. (Contributed by AV, 4-Nov-2019.) (Revised by AV, 4-Dec-2019.) (Proof shortened by AV, 3-Jul-2022.)
Hypotheses
Ref Expression
pmatcollpw.p 𝑃 = (Poly1𝑅)
pmatcollpw.c 𝐶 = (𝑁 Mat 𝑃)
pmatcollpw.b 𝐵 = (Base‘𝐶)
pmatcollpw.m = ( ·𝑠𝐶)
pmatcollpw.e = (.g‘(mulGrp‘𝑃))
pmatcollpw.x 𝑋 = (var1𝑅)
pmatcollpw.t 𝑇 = (𝑁 matToPolyMat 𝑅)
Assertion
Ref Expression
pmatcollpwfi ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → ∃𝑠 ∈ ℕ0 𝑀 = (𝐶 Σg (𝑛 ∈ (0...𝑠) ↦ ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))))))
Distinct variable groups:   𝐵,𝑛   𝑛,𝑀   𝑛,𝑁   𝑃,𝑛   𝑅,𝑛   𝑛,𝑋   ,𝑛   𝐵,𝑠,𝑛   𝐶,𝑛   𝑀,𝑠   𝑁,𝑠   𝑅,𝑠
Allowed substitution hints:   𝐶(𝑠)   𝑃(𝑠)   𝑇(𝑛,𝑠)   (𝑠)   (𝑛,𝑠)   𝑋(𝑠)

Proof of Theorem pmatcollpwfi
StepHypRef Expression
1 crngring 19302 . . . 4 (𝑅 ∈ CRing → 𝑅 ∈ Ring)
213ad2ant2 1131 . . 3 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → 𝑅 ∈ Ring)
3 simp3 1135 . . 3 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → 𝑀𝐵)
4 pmatcollpw.p . . . 4 𝑃 = (Poly1𝑅)
5 pmatcollpw.c . . . 4 𝐶 = (𝑁 Mat 𝑃)
6 pmatcollpw.b . . . 4 𝐵 = (Base‘𝐶)
7 eqid 2798 . . . 4 (𝑁 Mat 𝑅) = (𝑁 Mat 𝑅)
8 eqid 2798 . . . 4 (0g‘(𝑁 Mat 𝑅)) = (0g‘(𝑁 Mat 𝑅))
94, 5, 6, 7, 8decpmataa0 21373 . . 3 ((𝑅 ∈ Ring ∧ 𝑀𝐵) → ∃𝑠 ∈ ℕ0𝑛 ∈ ℕ0 (𝑠 < 𝑛 → (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅))))
102, 3, 9syl2anc 587 . 2 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → ∃𝑠 ∈ ℕ0𝑛 ∈ ℕ0 (𝑠 < 𝑛 → (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅))))
11 pmatcollpw.m . . . . . . 7 = ( ·𝑠𝐶)
12 pmatcollpw.e . . . . . . 7 = (.g‘(mulGrp‘𝑃))
13 pmatcollpw.x . . . . . . 7 𝑋 = (var1𝑅)
14 pmatcollpw.t . . . . . . 7 𝑇 = (𝑁 matToPolyMat 𝑅)
154, 5, 6, 11, 12, 13, 14pmatcollpw 21386 . . . . . 6 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → 𝑀 = (𝐶 Σg (𝑛 ∈ ℕ0 ↦ ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))))))
1615ad2antrr 725 . . . . 5 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ ∀𝑛 ∈ ℕ0 (𝑠 < 𝑛 → (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅)))) → 𝑀 = (𝐶 Σg (𝑛 ∈ ℕ0 ↦ ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))))))
17 eqid 2798 . . . . . 6 (0g𝐶) = (0g𝐶)
18 simp1 1133 . . . . . . . . 9 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → 𝑁 ∈ Fin)
194, 5pmatring 21297 . . . . . . . . 9 ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → 𝐶 ∈ Ring)
2018, 2, 19syl2anc 587 . . . . . . . 8 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → 𝐶 ∈ Ring)
21 ringcmn 19327 . . . . . . . 8 (𝐶 ∈ Ring → 𝐶 ∈ CMnd)
2220, 21syl 17 . . . . . . 7 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → 𝐶 ∈ CMnd)
2322ad2antrr 725 . . . . . 6 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ ∀𝑛 ∈ ℕ0 (𝑠 < 𝑛 → (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅)))) → 𝐶 ∈ CMnd)
2418adantr 484 . . . . . . . . 9 (((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑛 ∈ ℕ0) → 𝑁 ∈ Fin)
252adantr 484 . . . . . . . . . 10 (((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑛 ∈ ℕ0) → 𝑅 ∈ Ring)
264ply1ring 20877 . . . . . . . . . 10 (𝑅 ∈ Ring → 𝑃 ∈ Ring)
2725, 26syl 17 . . . . . . . . 9 (((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑛 ∈ ℕ0) → 𝑃 ∈ Ring)
282anim1i 617 . . . . . . . . . 10 (((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑛 ∈ ℕ0) → (𝑅 ∈ Ring ∧ 𝑛 ∈ ℕ0))
29 eqid 2798 . . . . . . . . . . 11 (mulGrp‘𝑃) = (mulGrp‘𝑃)
30 eqid 2798 . . . . . . . . . . 11 (Base‘𝑃) = (Base‘𝑃)
314, 13, 29, 12, 30ply1moncl 20900 . . . . . . . . . 10 ((𝑅 ∈ Ring ∧ 𝑛 ∈ ℕ0) → (𝑛 𝑋) ∈ (Base‘𝑃))
3228, 31syl 17 . . . . . . . . 9 (((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑛 ∈ ℕ0) → (𝑛 𝑋) ∈ (Base‘𝑃))
33 simpl2 1189 . . . . . . . . . . 11 (((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑛 ∈ ℕ0) → 𝑅 ∈ CRing)
343adantr 484 . . . . . . . . . . 11 (((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑛 ∈ ℕ0) → 𝑀𝐵)
35 simpr 488 . . . . . . . . . . 11 (((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑛 ∈ ℕ0) → 𝑛 ∈ ℕ0)
36 eqid 2798 . . . . . . . . . . . 12 (Base‘(𝑁 Mat 𝑅)) = (Base‘(𝑁 Mat 𝑅))
374, 5, 6, 7, 36decpmatcl 21372 . . . . . . . . . . 11 ((𝑅 ∈ CRing ∧ 𝑀𝐵𝑛 ∈ ℕ0) → (𝑀 decompPMat 𝑛) ∈ (Base‘(𝑁 Mat 𝑅)))
3833, 34, 35, 37syl3anc 1368 . . . . . . . . . 10 (((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑛 ∈ ℕ0) → (𝑀 decompPMat 𝑛) ∈ (Base‘(𝑁 Mat 𝑅)))
3914, 7, 36, 4, 5, 6mat2pmatbas0 21332 . . . . . . . . . 10 ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring ∧ (𝑀 decompPMat 𝑛) ∈ (Base‘(𝑁 Mat 𝑅))) → (𝑇‘(𝑀 decompPMat 𝑛)) ∈ 𝐵)
4024, 25, 38, 39syl3anc 1368 . . . . . . . . 9 (((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑛 ∈ ℕ0) → (𝑇‘(𝑀 decompPMat 𝑛)) ∈ 𝐵)
4130, 5, 6, 11matvscl 21036 . . . . . . . . 9 (((𝑁 ∈ Fin ∧ 𝑃 ∈ Ring) ∧ ((𝑛 𝑋) ∈ (Base‘𝑃) ∧ (𝑇‘(𝑀 decompPMat 𝑛)) ∈ 𝐵)) → ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))) ∈ 𝐵)
4224, 27, 32, 40, 41syl22anc 837 . . . . . . . 8 (((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑛 ∈ ℕ0) → ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))) ∈ 𝐵)
4342ralrimiva 3149 . . . . . . 7 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → ∀𝑛 ∈ ℕ0 ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))) ∈ 𝐵)
4443ad2antrr 725 . . . . . 6 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ ∀𝑛 ∈ ℕ0 (𝑠 < 𝑛 → (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅)))) → ∀𝑛 ∈ ℕ0 ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))) ∈ 𝐵)
45 simplr 768 . . . . . 6 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ ∀𝑛 ∈ ℕ0 (𝑠 < 𝑛 → (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅)))) → 𝑠 ∈ ℕ0)
46 fveq2 6645 . . . . . . . . . . . . 13 ((𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅)) → (𝑇‘(𝑀 decompPMat 𝑛)) = (𝑇‘(0g‘(𝑁 Mat 𝑅))))
472, 18jca 515 . . . . . . . . . . . . . . 15 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → (𝑅 ∈ Ring ∧ 𝑁 ∈ Fin))
4847ad2antrr 725 . . . . . . . . . . . . . 14 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) → (𝑅 ∈ Ring ∧ 𝑁 ∈ Fin))
49 eqid 2798 . . . . . . . . . . . . . . 15 (0g‘(𝑁 Mat 𝑃)) = (0g‘(𝑁 Mat 𝑃))
5014, 4, 8, 490mat2pmat 21341 . . . . . . . . . . . . . 14 ((𝑅 ∈ Ring ∧ 𝑁 ∈ Fin) → (𝑇‘(0g‘(𝑁 Mat 𝑅))) = (0g‘(𝑁 Mat 𝑃)))
5148, 50syl 17 . . . . . . . . . . . . 13 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) → (𝑇‘(0g‘(𝑁 Mat 𝑅))) = (0g‘(𝑁 Mat 𝑃)))
5246, 51sylan9eqr 2855 . . . . . . . . . . . 12 (((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) ∧ (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅))) → (𝑇‘(𝑀 decompPMat 𝑛)) = (0g‘(𝑁 Mat 𝑃)))
5352oveq2d 7151 . . . . . . . . . . 11 (((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) ∧ (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅))) → ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))) = ((𝑛 𝑋) (0g‘(𝑁 Mat 𝑃))))
544, 5pmatlmod 21298 . . . . . . . . . . . . . . 15 ((𝑁 ∈ Fin ∧ 𝑅 ∈ Ring) → 𝐶 ∈ LMod)
5518, 2, 54syl2anc 587 . . . . . . . . . . . . . 14 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → 𝐶 ∈ LMod)
5655ad2antrr 725 . . . . . . . . . . . . 13 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) → 𝐶 ∈ LMod)
5728adantlr 714 . . . . . . . . . . . . . . 15 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) → (𝑅 ∈ Ring ∧ 𝑛 ∈ ℕ0))
5857, 31syl 17 . . . . . . . . . . . . . 14 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) → (𝑛 𝑋) ∈ (Base‘𝑃))
594ply1crng 20827 . . . . . . . . . . . . . . . . . . . 20 (𝑅 ∈ CRing → 𝑃 ∈ CRing)
6059anim2i 619 . . . . . . . . . . . . . . . . . . 19 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing) → (𝑁 ∈ Fin ∧ 𝑃 ∈ CRing))
61603adant3 1129 . . . . . . . . . . . . . . . . . 18 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → (𝑁 ∈ Fin ∧ 𝑃 ∈ CRing))
625matsca2 21025 . . . . . . . . . . . . . . . . . 18 ((𝑁 ∈ Fin ∧ 𝑃 ∈ CRing) → 𝑃 = (Scalar‘𝐶))
6361, 62syl 17 . . . . . . . . . . . . . . . . 17 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → 𝑃 = (Scalar‘𝐶))
6463eqcomd 2804 . . . . . . . . . . . . . . . 16 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → (Scalar‘𝐶) = 𝑃)
6564ad2antrr 725 . . . . . . . . . . . . . . 15 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) → (Scalar‘𝐶) = 𝑃)
6665fveq2d 6649 . . . . . . . . . . . . . 14 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) → (Base‘(Scalar‘𝐶)) = (Base‘𝑃))
6758, 66eleqtrrd 2893 . . . . . . . . . . . . 13 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) → (𝑛 𝑋) ∈ (Base‘(Scalar‘𝐶)))
685eqcomi 2807 . . . . . . . . . . . . . . . 16 (𝑁 Mat 𝑃) = 𝐶
6968fveq2i 6648 . . . . . . . . . . . . . . 15 (0g‘(𝑁 Mat 𝑃)) = (0g𝐶)
7069oveq2i 7146 . . . . . . . . . . . . . 14 ((𝑛 𝑋) (0g‘(𝑁 Mat 𝑃))) = ((𝑛 𝑋) (0g𝐶))
71 eqid 2798 . . . . . . . . . . . . . . 15 (Scalar‘𝐶) = (Scalar‘𝐶)
72 eqid 2798 . . . . . . . . . . . . . . 15 (Base‘(Scalar‘𝐶)) = (Base‘(Scalar‘𝐶))
7371, 11, 72, 17lmodvs0 19661 . . . . . . . . . . . . . 14 ((𝐶 ∈ LMod ∧ (𝑛 𝑋) ∈ (Base‘(Scalar‘𝐶))) → ((𝑛 𝑋) (0g𝐶)) = (0g𝐶))
7470, 73syl5eq 2845 . . . . . . . . . . . . 13 ((𝐶 ∈ LMod ∧ (𝑛 𝑋) ∈ (Base‘(Scalar‘𝐶))) → ((𝑛 𝑋) (0g‘(𝑁 Mat 𝑃))) = (0g𝐶))
7556, 67, 74syl2anc 587 . . . . . . . . . . . 12 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) → ((𝑛 𝑋) (0g‘(𝑁 Mat 𝑃))) = (0g𝐶))
7675adantr 484 . . . . . . . . . . 11 (((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) ∧ (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅))) → ((𝑛 𝑋) (0g‘(𝑁 Mat 𝑃))) = (0g𝐶))
7753, 76eqtrd 2833 . . . . . . . . . 10 (((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) ∧ (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅))) → ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))) = (0g𝐶))
7877ex 416 . . . . . . . . 9 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) → ((𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅)) → ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))) = (0g𝐶)))
7978imim2d 57 . . . . . . . 8 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ 𝑛 ∈ ℕ0) → ((𝑠 < 𝑛 → (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅))) → (𝑠 < 𝑛 → ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))) = (0g𝐶))))
8079ralimdva 3144 . . . . . . 7 (((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) → (∀𝑛 ∈ ℕ0 (𝑠 < 𝑛 → (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅))) → ∀𝑛 ∈ ℕ0 (𝑠 < 𝑛 → ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))) = (0g𝐶))))
8180imp 410 . . . . . 6 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ ∀𝑛 ∈ ℕ0 (𝑠 < 𝑛 → (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅)))) → ∀𝑛 ∈ ℕ0 (𝑠 < 𝑛 → ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))) = (0g𝐶)))
826, 17, 23, 44, 45, 81gsummptnn0fz 19099 . . . . 5 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ ∀𝑛 ∈ ℕ0 (𝑠 < 𝑛 → (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅)))) → (𝐶 Σg (𝑛 ∈ ℕ0 ↦ ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))))) = (𝐶 Σg (𝑛 ∈ (0...𝑠) ↦ ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))))))
8316, 82eqtrd 2833 . . . 4 ((((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) ∧ ∀𝑛 ∈ ℕ0 (𝑠 < 𝑛 → (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅)))) → 𝑀 = (𝐶 Σg (𝑛 ∈ (0...𝑠) ↦ ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))))))
8483ex 416 . . 3 (((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) ∧ 𝑠 ∈ ℕ0) → (∀𝑛 ∈ ℕ0 (𝑠 < 𝑛 → (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅))) → 𝑀 = (𝐶 Σg (𝑛 ∈ (0...𝑠) ↦ ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛)))))))
8584reximdva 3233 . 2 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → (∃𝑠 ∈ ℕ0𝑛 ∈ ℕ0 (𝑠 < 𝑛 → (𝑀 decompPMat 𝑛) = (0g‘(𝑁 Mat 𝑅))) → ∃𝑠 ∈ ℕ0 𝑀 = (𝐶 Σg (𝑛 ∈ (0...𝑠) ↦ ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛)))))))
8610, 85mpd 15 1 ((𝑁 ∈ Fin ∧ 𝑅 ∈ CRing ∧ 𝑀𝐵) → ∃𝑠 ∈ ℕ0 𝑀 = (𝐶 Σg (𝑛 ∈ (0...𝑠) ↦ ((𝑛 𝑋) (𝑇‘(𝑀 decompPMat 𝑛))))))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ∧ wa 399   ∧ w3a 1084   = wceq 1538   ∈ wcel 2111  ∀wral 3106  ∃wrex 3107   class class class wbr 5030   ↦ cmpt 5110  ‘cfv 6324  (class class class)co 7135  Fincfn 8492  0cc0 10526   < clt 10664  ℕ0cn0 11885  ...cfz 12885  Basecbs 16475  Scalarcsca 16560   ·𝑠 cvsca 16561  0gc0g 16705   Σg cgsu 16706  .gcmg 18216  CMndccmn 18898  mulGrpcmgp 19232  Ringcrg 19290  CRingccrg 19291  LModclmod 19627  var1cv1 20805  Poly1cpl1 20806   Mat cmat 21012   matToPolyMat cmat2pmat 21309   decompPMat cdecpmat 21367 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 1911  ax-6 1970  ax-7 2015  ax-8 2113  ax-9 2121  ax-10 2142  ax-11 2158  ax-12 2175  ax-ext 2770  ax-rep 5154  ax-sep 5167  ax-nul 5174  ax-pow 5231  ax-pr 5295  ax-un 7441  ax-cnex 10582  ax-resscn 10583  ax-1cn 10584  ax-icn 10585  ax-addcl 10586  ax-addrcl 10587  ax-mulcl 10588  ax-mulrcl 10589  ax-mulcom 10590  ax-addass 10591  ax-mulass 10592  ax-distr 10593  ax-i2m1 10594  ax-1ne0 10595  ax-1rid 10596  ax-rnegex 10597  ax-rrecex 10598  ax-cnre 10599  ax-pre-lttri 10600  ax-pre-lttrn 10601  ax-pre-ltadd 10602  ax-pre-mulgt0 10603 This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3or 1085  df-3an 1086  df-tru 1541  df-fal 1551  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2598  df-eu 2629  df-clab 2777  df-cleq 2791  df-clel 2870  df-nfc 2938  df-ne 2988  df-nel 3092  df-ral 3111  df-rex 3112  df-reu 3113  df-rmo 3114  df-rab 3115  df-v 3443  df-sbc 3721  df-csb 3829  df-dif 3884  df-un 3886  df-in 3888  df-ss 3898  df-pss 3900  df-nul 4244  df-if 4426  df-pw 4499  df-sn 4526  df-pr 4528  df-tp 4530  df-op 4532  df-ot 4534  df-uni 4801  df-int 4839  df-iun 4883  df-iin 4884  df-br 5031  df-opab 5093  df-mpt 5111  df-tr 5137  df-id 5425  df-eprel 5430  df-po 5438  df-so 5439  df-fr 5478  df-se 5479  df-we 5480  df-xp 5525  df-rel 5526  df-cnv 5527  df-co 5528  df-dm 5529  df-rn 5530  df-res 5531  df-ima 5532  df-pred 6116  df-ord 6162  df-on 6163  df-lim 6164  df-suc 6165  df-iota 6283  df-fun 6326  df-fn 6327  df-f 6328  df-f1 6329  df-fo 6330  df-f1o 6331  df-fv 6332  df-isom 6333  df-riota 7093  df-ov 7138  df-oprab 7139  df-mpo 7140  df-of 7389  df-ofr 7390  df-om 7561  df-1st 7671  df-2nd 7672  df-supp 7814  df-wrecs 7930  df-recs 7991  df-rdg 8029  df-1o 8085  df-2o 8086  df-oadd 8089  df-er 8272  df-map 8391  df-pm 8392  df-ixp 8445  df-en 8493  df-dom 8494  df-sdom 8495  df-fin 8496  df-fsupp 8818  df-sup 8890  df-oi 8958  df-card 9352  df-pnf 10666  df-mnf 10667  df-xr 10668  df-ltxr 10669  df-le 10670  df-sub 10861  df-neg 10862  df-nn 11626  df-2 11688  df-3 11689  df-4 11690  df-5 11691  df-6 11692  df-7 11693  df-8 11694  df-9 11695  df-n0 11886  df-z 11970  df-dec 12087  df-uz 12232  df-fz 12886  df-fzo 13029  df-seq 13365  df-hash 13687  df-struct 16477  df-ndx 16478  df-slot 16479  df-base 16481  df-sets 16482  df-ress 16483  df-plusg 16570  df-mulr 16571  df-sca 16573  df-vsca 16574  df-ip 16575  df-tset 16576  df-ple 16577  df-ds 16579  df-hom 16581  df-cco 16582  df-0g 16707  df-gsum 16708  df-prds 16713  df-pws 16715  df-mre 16849  df-mrc 16850  df-acs 16852  df-mgm 17844  df-sgrp 17893  df-mnd 17904  df-mhm 17948  df-submnd 17949  df-grp 18098  df-minusg 18099  df-sbg 18100  df-mulg 18217  df-subg 18268  df-ghm 18348  df-cntz 18439  df-cmn 18900  df-abl 18901  df-mgp 19233  df-ur 19245  df-srg 19249  df-ring 19292  df-cring 19293  df-subrg 19526  df-lmod 19629  df-lss 19697  df-sra 19937  df-rgmod 19938  df-dsmm 20421  df-frlm 20436  df-assa 20542  df-ascl 20544  df-psr 20594  df-mvr 20595  df-mpl 20596  df-opsr 20598  df-psr1 20809  df-vr1 20810  df-ply1 20811  df-coe1 20812  df-mamu 20991  df-mat 21013  df-mat2pmat 21312  df-decpmat 21368 This theorem is referenced by:  pmatcollpw3fi  21390
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