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Theorem cpmidpmatlem1 23215
Description: Lemma 1 for cpmidpmat 23218. (Contributed by AV, 13-Nov-2019.)
Hypotheses
Ref Expression
cpmidgsum.a 𝐴 = (𝑁 Mat 𝑅)
cpmidgsum.b 𝐵 = (Base‘𝐴)
cpmidgsum.p 𝑃 = (Poly1‘𝑅)
cpmidgsum.y 𝑌 = (𝑁 Mat 𝑃)
cpmidgsum.x 𝑋 = (var1‘𝑅)
cpmidgsum.e ↑ = (.g‘(mulGrp‘𝑃))
cpmidgsum.m · = ( ·𝑠 ‘𝑌)
cpmidgsum.1 1 = (1r‘𝑌)
cpmidgsum.u 𝑈 = (algSc‘𝑃)
cpmidgsum.c 𝐶 = (𝑁 CharPlyMat 𝑅)
cpmidgsum.k 𝐾 = (𝐶‘𝑀)
cpmidgsum.h 𝐻 = (𝐾 · 1 )
cpmidgsumm2pm.o 𝑂 = (1r‘𝐴)
cpmidgsumm2pm.m ∗ = ( ·𝑠 ‘𝐴)
cpmidgsumm2pm.t 𝑇 = (𝑁 matToPolyMat 𝑅)
cpmidpmat.g 𝐺 = (𝑘 ∈ ℕ0 ↦ (((coe1‘𝐾)‘𝑘) ∗ 𝑂))
Assertion
Ref Expression
cpmidpmatlem1 (𝐿 ∈ ℕ0 → (𝐺‘𝐿) = (((coe1‘𝐾)‘𝐿) ∗ 𝑂))
Distinct variable groups:   𝐵,𝑘   𝑘,𝐻   𝑘,𝑁   𝑃,𝑘   𝑅,𝑘   𝑘,𝑌   𝑘,𝐾   𝑘,𝐿   𝑘,𝑂   ∗ ,𝑘
Allowed substitution hints:   𝐴(𝑘)   𝐶(𝑘)   𝑇(𝑘)   · (𝑘)   𝑈(𝑘)   1 (𝑘)   ↑ (𝑘)   𝐺(𝑘)   𝑀(𝑘)   𝑋(𝑘)

Proof of Theorem cpmidpmatlem1
StepHypRef Expression
1 fveq2 6905 . . 3 (𝑘 = 𝐿 → ((coe1‘𝐾)‘𝑘) = ((coe1‘𝐾)‘𝐿))
21oveq1d 7455 . 2 (𝑘 = 𝐿 → (((coe1‘𝐾)‘𝑘) ∗ 𝑂) = (((coe1‘𝐾)‘𝐿) ∗ 𝑂))
3 cpmidpmat.g . 2 𝐺 = (𝑘 ∈ ℕ0 ↦ (((coe1‘𝐾)‘𝑘) ∗ 𝑂))
4 ovex 7473 . 2 (((coe1‘𝐾)‘𝐿) ∗ 𝑂) ∈ V
52, 3, 4fvmpt 7013 1 (𝐿 ∈ ℕ0 → (𝐺‘𝐿) = (((coe1‘𝐾)‘𝐿) ∗ 𝑂))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   = wceq 1570   ∈ wcel 2147   ↦ cmpt 5189  ‘cfv 6555  (class class class)co 7440  ℕ0cn0 12630  Basecbs 17413   ·𝑠 cvsca 17458  .gcmg 19303  mulGrpcmgp 20387  1rcur 20434  algSccascl 22187  var1cv1 22521  Poly1cpl1 22522  coe1cco1 22523   Mat cmat 22749   matToPolyMat cmat2pmat 23049   CharPlyMat cchpmat 23171
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1945  ax-6 2002  ax-7 2043  ax-8 2149  ax-9 2157  ax-10 2180  ax-11 2197  ax-12 2216  ax-ext 2735  ax-sep 5252  ax-nul 5263  ax-pr 5395
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2102  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2839  df-nfc 2913  df-ne 2960  df-ral 3081  df-rex 3091  df-rab 3417  df-v 3456  df-ss 3901  df-dif 4050  df-in 4094  df-un 4154  df-nul 4282  df-if 4486  df-sn 4589  df-pr 4591  df-op 4839  df-uni 4871  df-br 5107  df-opab 5171  df-mpt 5190  df-id 5550  df-xp 5661  df-rel 5662  df-cnv 5663  df-co 5664  df-dm 5665  df-iota 6509  df-fun 6557  df-fv 6563  df-ov 7443
This theorem is used by:  cpmidpmat  23218
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