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Theorem zlmlem 21570
Description: Lemma for zlmbas 21571 and zlmplusg 21572. (Contributed by Mario Carneiro, 2-Oct-2015.) (Revised by AV, 3-Nov-2024.)
Hypotheses
Ref Expression
zlmbas.w 𝑊 = (ℤMod‘𝐺)
zlmlem.2 𝐸 = Slot (𝐸‘ndx)
zlmlem.3 (𝐸‘ndx) ≠ (Scalar‘ndx)
zlmlem.4 (𝐸‘ndx) ≠ ( ·𝑠 ‘ndx)
Assertion
Ref Expression
zlmlem (𝐸𝐺) = (𝐸𝑊)

Proof of Theorem zlmlem
StepHypRef Expression
1 zlmlem.2 . . . . 5 𝐸 = Slot (𝐸‘ndx)
2 zlmlem.3 . . . . 5 (𝐸‘ndx) ≠ (Scalar‘ndx)
31, 2setsnid 17246 . . . 4 (𝐸𝐺) = (𝐸‘(𝐺 sSet ⟨(Scalar‘ndx), ℤring⟩))
4 zlmlem.4 . . . . 5 (𝐸‘ndx) ≠ ( ·𝑠 ‘ndx)
51, 4setsnid 17246 . . . 4 (𝐸‘(𝐺 sSet ⟨(Scalar‘ndx), ℤring⟩)) = (𝐸‘((𝐺 sSet ⟨(Scalar‘ndx), ℤring⟩) sSet ⟨( ·𝑠 ‘ndx), (.g𝐺)⟩))
63, 5eqtri 2787 . . 3 (𝐸𝐺) = (𝐸‘((𝐺 sSet ⟨(Scalar‘ndx), ℤring⟩) sSet ⟨( ·𝑠 ‘ndx), (.g𝐺)⟩))
7 zlmbas.w . . . . 5 𝑊 = (ℤMod‘𝐺)
8 eqid 2764 . . . . 5 (.g𝐺) = (.g𝐺)
97, 8zlmval 21569 . . . 4 (𝐺 ∈ V → 𝑊 = ((𝐺 sSet ⟨(Scalar‘ndx), ℤring⟩) sSet ⟨( ·𝑠 ‘ndx), (.g𝐺)⟩))
109fveq2d 6873 . . 3 (𝐺 ∈ V → (𝐸𝑊) = (𝐸‘((𝐺 sSet ⟨(Scalar‘ndx), ℤring⟩) sSet ⟨( ·𝑠 ‘ndx), (.g𝐺)⟩)))
116, 10eqtr4id 2818 . 2 (𝐺 ∈ V → (𝐸𝐺) = (𝐸𝑊))
121str0 17227 . . . 4 ∅ = (𝐸‘∅)
1312eqcomi 2773 . . 3 (𝐸‘∅) = ∅
1413, 7fveqprc 17229 . 2 𝐺 ∈ V → (𝐸𝐺) = (𝐸𝑊))
1511, 14pm2.61i 183 1 (𝐸𝐺) = (𝐸𝑊)
Colors of variables: wff setvar class
Syntax hints:   = wceq 1562  wcel 2144  wne 2959  Vcvv 3456  c0 4287  cop 4590  cfv 6523  (class class class)co 7398   sSet csts 17201  Slot cslot 17219  ndxcnx 17231  Scalarcsca 17291   ·𝑠 cvsca 17292  .gcmg 19111  ringczring 21500  ℤModczlm 21554
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1817  ax-4 1831  ax-5 1932  ax-6 1989  ax-7 2030  ax-8 2146  ax-9 2154  ax-10 2177  ax-11 2193  ax-12 2214  ax-ext 2736  ax-sep 5248  ax-nul 5258  ax-pr 5392  ax-un 7720
This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3an 1101  df-tru 1565  df-fal 1575  df-ex 1802  df-nf 1806  df-sb 2093  df-mo 2568  df-eu 2598  df-clab 2743  df-cleq 2756  df-clel 2839  df-nfc 2913  df-ne 2960  df-ral 3079  df-rex 3089  df-rab 3417  df-v 3458  df-sbc 3747  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-nul 4288  df-if 4483  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-br 5103  df-opab 5165  df-mpt 5184  df-id 5544  df-xp 5655  df-rel 5656  df-cnv 5657  df-co 5658  df-dm 5659  df-res 5661  df-iota 6479  df-fun 6525  df-fv 6531  df-ov 7401  df-oprab 7402  df-mpo 7403  df-sets 17202  df-slot 17220  df-zlm 21558
This theorem is referenced by:  zlmbas  21571  zlmplusg  21572  zlmmulr  21573
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