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Theorem zlmlem 21496
Description: Lemma for zlmbas 21497 and zlmplusg 21498. (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 17178 . . . 4 (𝐸𝐺) = (𝐸‘(𝐺 sSet ⟨(Scalar‘ndx), ℤring⟩))
4 zlmlem.4 . . . . 5 (𝐸‘ndx) ≠ ( ·𝑠 ‘ndx)
51, 4setsnid 17178 . . . 4 (𝐸‘(𝐺 sSet ⟨(Scalar‘ndx), ℤring⟩)) = (𝐸‘((𝐺 sSet ⟨(Scalar‘ndx), ℤring⟩) sSet ⟨( ·𝑠 ‘ndx), (.g𝐺)⟩))
63, 5eqtri 2759 . . 3 (𝐸𝐺) = (𝐸‘((𝐺 sSet ⟨(Scalar‘ndx), ℤring⟩) sSet ⟨( ·𝑠 ‘ndx), (.g𝐺)⟩))
7 zlmbas.w . . . . 5 𝑊 = (ℤMod‘𝐺)
8 eqid 2736 . . . . 5 (.g𝐺) = (.g𝐺)
97, 8zlmval 21495 . . . 4 (𝐺 ∈ V → 𝑊 = ((𝐺 sSet ⟨(Scalar‘ndx), ℤring⟩) sSet ⟨( ·𝑠 ‘ndx), (.g𝐺)⟩))
109fveq2d 6844 . . 3 (𝐺 ∈ V → (𝐸𝑊) = (𝐸‘((𝐺 sSet ⟨(Scalar‘ndx), ℤring⟩) sSet ⟨( ·𝑠 ‘ndx), (.g𝐺)⟩)))
116, 10eqtr4id 2790 . 2 (𝐺 ∈ V → (𝐸𝐺) = (𝐸𝑊))
121str0 17159 . . . 4 ∅ = (𝐸‘∅)
1312eqcomi 2745 . . 3 (𝐸‘∅) = ∅
1413, 7fveqprc 17161 . 2 𝐺 ∈ V → (𝐸𝐺) = (𝐸𝑊))
1511, 14pm2.61i 182 1 (𝐸𝐺) = (𝐸𝑊)
Colors of variables: wff setvar class
Syntax hints:   = wceq 1542  wcel 2114  wne 2932  Vcvv 3429  c0 4273  cop 4573  cfv 6498  (class class class)co 7367   sSet csts 17133  Slot cslot 17151  ndxcnx 17163  Scalarcsca 17223   ·𝑠 cvsca 17224  .gcmg 19043  ringczring 21426  ℤModczlm 21480
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 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2708  ax-sep 5231  ax-nul 5241  ax-pr 5375  ax-un 7689
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3062  df-rab 3390  df-v 3431  df-sbc 3729  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-nul 4274  df-if 4467  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4851  df-br 5086  df-opab 5148  df-mpt 5167  df-id 5526  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-res 5643  df-iota 6454  df-fun 6500  df-fv 6506  df-ov 7370  df-oprab 7371  df-mpo 7372  df-sets 17134  df-slot 17152  df-zlm 21484
This theorem is referenced by:  zlmbas  21497  zlmplusg  21498  zlmmulr  21499
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