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Theorem sralem 21456
Description: Lemma for srabase 21457 and similar theorems. (Contributed by Mario Carneiro, 4-Oct-2015.) (Revised by Thierry Arnoux, 16-Jun-2019.) (Revised by AV, 29-Oct-2024.)
Hypotheses
Ref Expression
srapart.a (𝜑 → 𝐴 = ((subringAlg ‘𝑊)‘𝑆))
srapart.s (𝜑 → 𝑆 ⊆ (Base‘𝑊))
sralem.1 𝐸 = Slot (𝐸‘ndx)
sralem.2 (Scalar‘ndx) ≠ (𝐸‘ndx)
sralem.3 ( ·𝑠 ‘ndx) ≠ (𝐸‘ndx)
sralem.4 (·𝑖‘ndx) ≠ (𝐸‘ndx)
Assertion
Ref Expression
sralem (𝜑 → (𝐸‘𝑊) = (𝐸‘𝐴))

Proof of Theorem sralem
StepHypRef Expression
1 sralem.1 . . . . 5 𝐸 = Slot (𝐸‘ndx)
2 sralem.2 . . . . . 6 (Scalar‘ndx) ≠ (𝐸‘ndx)
32necomi 3009 . . . . 5 (𝐸‘ndx) ≠ (Scalar‘ndx)
41, 3setsnid 17391 . . . 4 (𝐸‘𝑊) = (𝐸‘(𝑊 sSet ⟨(Scalar‘ndx), (𝑊 ↾s 𝑆)⟩))
5 sralem.3 . . . . . 6 ( ·𝑠 ‘ndx) ≠ (𝐸‘ndx)
65necomi 3009 . . . . 5 (𝐸‘ndx) ≠ ( ·𝑠 ‘ndx)
71, 6setsnid 17391 . . . 4 (𝐸‘(𝑊 sSet ⟨(Scalar‘ndx), (𝑊 ↾s 𝑆)⟩)) = (𝐸‘((𝑊 sSet ⟨(Scalar‘ndx), (𝑊 ↾s 𝑆)⟩) sSet ⟨( ·𝑠 ‘ndx), (.r‘𝑊)⟩))
8 sralem.4 . . . . . 6 (·𝑖‘ndx) ≠ (𝐸‘ndx)
98necomi 3009 . . . . 5 (𝐸‘ndx) ≠ (·𝑖‘ndx)
101, 9setsnid 17391 . . . 4 (𝐸‘((𝑊 sSet ⟨(Scalar‘ndx), (𝑊 ↾s 𝑆)⟩) sSet ⟨( ·𝑠 ‘ndx), (.r‘𝑊)⟩)) = (𝐸‘(((𝑊 sSet ⟨(Scalar‘ndx), (𝑊 ↾s 𝑆)⟩) sSet ⟨( ·𝑠 ‘ndx), (.r‘𝑊)⟩) sSet ⟨(·𝑖‘ndx), (.r‘𝑊)⟩))
114, 7, 103eqtri 2787 . . 3 (𝐸‘𝑊) = (𝐸‘(((𝑊 sSet ⟨(Scalar‘ndx), (𝑊 ↾s 𝑆)⟩) sSet ⟨( ·𝑠 ‘ndx), (.r‘𝑊)⟩) sSet ⟨(·𝑖‘ndx), (.r‘𝑊)⟩))
12 srapart.a . . . . . 6 (𝜑 → 𝐴 = ((subringAlg ‘𝑊)‘𝑆))
1312adantl 487 . . . . 5 ((𝑊 ∈ V ∧ 𝜑) → 𝐴 = ((subringAlg ‘𝑊)‘𝑆))
14 srapart.s . . . . . 6 (𝜑 → 𝑆 ⊆ (Base‘𝑊))
15 sraval 21455 . . . . . 6 ((𝑊 ∈ V ∧ 𝑆 ⊆ (Base‘𝑊)) → ((subringAlg ‘𝑊)‘𝑆) = (((𝑊 sSet ⟨(Scalar‘ndx), (𝑊 ↾s 𝑆)⟩) sSet ⟨( ·𝑠 ‘ndx), (.r‘𝑊)⟩) sSet ⟨(·𝑖‘ndx), (.r‘𝑊)⟩))
1614, 15sylan2 605 . . . . 5 ((𝑊 ∈ V ∧ 𝜑) → ((subringAlg ‘𝑊)‘𝑆) = (((𝑊 sSet ⟨(Scalar‘ndx), (𝑊 ↾s 𝑆)⟩) sSet ⟨( ·𝑠 ‘ndx), (.r‘𝑊)⟩) sSet ⟨(·𝑖‘ndx), (.r‘𝑊)⟩))
1713, 16eqtrd 2795 . . . 4 ((𝑊 ∈ V ∧ 𝜑) → 𝐴 = (((𝑊 sSet ⟨(Scalar‘ndx), (𝑊 ↾s 𝑆)⟩) sSet ⟨( ·𝑠 ‘ndx), (.r‘𝑊)⟩) sSet ⟨(·𝑖‘ndx), (.r‘𝑊)⟩))
1817fveq2d 6889 . . 3 ((𝑊 ∈ V ∧ 𝜑) → (𝐸‘𝐴) = (𝐸‘(((𝑊 sSet ⟨(Scalar‘ndx), (𝑊 ↾s 𝑆)⟩) sSet ⟨( ·𝑠 ‘ndx), (.r‘𝑊)⟩) sSet ⟨(·𝑖‘ndx), (.r‘𝑊)⟩)))
1911, 18eqtr4id 2814 . 2 ((𝑊 ∈ V ∧ 𝜑) → (𝐸‘𝑊) = (𝐸‘𝐴))
201str0 17372 . . 3 ∅ = (𝐸‘∅)
21 fvprc 6877 . . . 4 (¬ 𝑊 ∈ V → (𝐸‘𝑊) = ∅)
2221adantr 486 . . 3 ((¬ 𝑊 ∈ V ∧ 𝜑) → (𝐸‘𝑊) = ∅)
23 fv2prc 6927 . . . . 5 (¬ 𝑊 ∈ V → ((subringAlg ‘𝑊)‘𝑆) = ∅)
2412, 23sylan9eqr 2817 . . . 4 ((¬ 𝑊 ∈ V ∧ 𝜑) → 𝐴 = ∅)
2524fveq2d 6889 . . 3 ((¬ 𝑊 ∈ V ∧ 𝜑) → (𝐸‘𝐴) = (𝐸‘∅))
2620, 22, 253eqtr4a 2821 . 2 ((¬ 𝑊 ∈ V ∧ 𝜑) → (𝐸‘𝑊) = (𝐸‘𝐴))
2719, 26pm2.61ian 824 1 (𝜑 → (𝐸‘𝑊) = (𝐸‘𝐴))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  ¬ wn 3   → wi 4   ∧ wa 401   = wceq 1569   ∈ wcel 2144   ≠ wne 2955  Vcvv 3450   ⊆ wss 3895  ∅c0 4278  ⟨cop 4834  ‘cfv 6538  (class class class)co 7420   sSet csts 17346  Slot cslot 17364  ndxcnx 17376  Basecbs 17392   ↾s cress 17413  .rcmulr 17434  Scalarcsca 17436   ·𝑠 cvsca 17437  ·𝑖cip 17438  subringAlg csra 21451
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1942  ax-6 1999  ax-7 2040  ax-8 2146  ax-9 2154  ax-10 2177  ax-11 2193  ax-12 2212  ax-ext 2732  ax-rep 5231  ax-sep 5248  ax-nul 5259  ax-pow 5326  ax-pr 5390  ax-un 7751
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1572  df-fal 1582  df-ex 1812  df-nf 1816  df-sb 2099  df-mo 2564  df-eu 2594  df-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  df-ne 2956  df-ral 3077  df-rex 3087  df-reu 3366  df-rab 3413  df-v 3452  df-sbc 3739  df-csb 3847  df-ss 3896  df-dif 4047  df-in 4091  df-un 4151  df-nul 4279  df-if 4482  df-pw 4558  df-sn 4585  df-pr 4587  df-op 4835  df-uni 4867  df-iun 4952  df-br 5103  df-opab 5167  df-mpt 5186  df-id 5545  df-xp 5656  df-rel 5657  df-cnv 5658  df-co 5659  df-dm 5660  df-rn 5661  df-res 5662  df-ima 5663  df-iota 6494  df-fun 6540  df-fn 6541  df-f 6542  df-f1 6543  df-fo 6544  df-f1o 6545  df-fv 6546  df-ov 7423  df-oprab 7424  df-mpo 7425  df-sets 17347  df-slot 17365  df-sra 21453
This theorem is used by:  srabase  21457  sraaddg  21458  sramulr  21459  sratset  21463  srads  21465  cchhllem  29469
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