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Theorem resseqnbasd 12949
Description: The components of an extensible structure except the base set remain unchanged on a structure restriction. (Contributed by Mario Carneiro, 26-Nov-2014.) (Revised by Mario Carneiro, 2-Dec-2014.) (Revised by AV, 19-Oct-2024.)
Hypotheses
Ref Expression
resseqnbas.r 𝑅 = (𝑊s 𝐴)
resseqnbas.e 𝐶 = (𝐸𝑊)
resseqnbasd.f (𝐸 = Slot (𝐸‘ndx) ∧ (𝐸‘ndx) ∈ ℕ)
resseqnbas.n (𝐸‘ndx) ≠ (Base‘ndx)
resseqnbasd.w (𝜑𝑊𝑋)
resseqnbasd.a (𝜑𝐴𝑉)
Assertion
Ref Expression
resseqnbasd (𝜑𝐶 = (𝐸𝑅))

Proof of Theorem resseqnbasd
StepHypRef Expression
1 resseqnbas.e . 2 𝐶 = (𝐸𝑊)
2 resseqnbas.r . . . . 5 𝑅 = (𝑊s 𝐴)
3 resseqnbasd.w . . . . . 6 (𝜑𝑊𝑋)
4 resseqnbasd.a . . . . . 6 (𝜑𝐴𝑉)
5 ressvalsets 12940 . . . . . 6 ((𝑊𝑋𝐴𝑉) → (𝑊s 𝐴) = (𝑊 sSet ⟨(Base‘ndx), (𝐴 ∩ (Base‘𝑊))⟩))
63, 4, 5syl2anc 411 . . . . 5 (𝜑 → (𝑊s 𝐴) = (𝑊 sSet ⟨(Base‘ndx), (𝐴 ∩ (Base‘𝑊))⟩))
72, 6eqtrid 2251 . . . 4 (𝜑𝑅 = (𝑊 sSet ⟨(Base‘ndx), (𝐴 ∩ (Base‘𝑊))⟩))
87fveq2d 5587 . . 3 (𝜑 → (𝐸𝑅) = (𝐸‘(𝑊 sSet ⟨(Base‘ndx), (𝐴 ∩ (Base‘𝑊))⟩)))
9 inex1g 4184 . . . . 5 (𝐴𝑉 → (𝐴 ∩ (Base‘𝑊)) ∈ V)
104, 9syl 14 . . . 4 (𝜑 → (𝐴 ∩ (Base‘𝑊)) ∈ V)
11 resseqnbasd.f . . . . 5 (𝐸 = Slot (𝐸‘ndx) ∧ (𝐸‘ndx) ∈ ℕ)
12 resseqnbas.n . . . . 5 (𝐸‘ndx) ≠ (Base‘ndx)
13 basendxnn 12932 . . . . 5 (Base‘ndx) ∈ ℕ
1411, 12, 13setsslnid 12928 . . . 4 ((𝑊𝑋 ∧ (𝐴 ∩ (Base‘𝑊)) ∈ V) → (𝐸𝑊) = (𝐸‘(𝑊 sSet ⟨(Base‘ndx), (𝐴 ∩ (Base‘𝑊))⟩)))
153, 10, 14syl2anc 411 . . 3 (𝜑 → (𝐸𝑊) = (𝐸‘(𝑊 sSet ⟨(Base‘ndx), (𝐴 ∩ (Base‘𝑊))⟩)))
168, 15eqtr4d 2242 . 2 (𝜑 → (𝐸𝑅) = (𝐸𝑊))
171, 16eqtr4id 2258 1 (𝜑𝐶 = (𝐸𝑅))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104   = wceq 1373  wcel 2177  wne 2377  Vcvv 2773  cin 3166  cop 3637  cfv 5276  (class class class)co 5951  cn 9043  ndxcnx 12873   sSet csts 12874  Slot cslot 12875  Basecbs 12876  s cress 12877
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 615  ax-in2 616  ax-io 711  ax-5 1471  ax-7 1472  ax-gen 1473  ax-ie1 1517  ax-ie2 1518  ax-8 1528  ax-10 1529  ax-11 1530  ax-i12 1531  ax-bndl 1533  ax-4 1534  ax-17 1550  ax-i9 1554  ax-ial 1558  ax-i5r 1559  ax-13 2179  ax-14 2180  ax-ext 2188  ax-sep 4166  ax-pow 4222  ax-pr 4257  ax-un 4484  ax-setind 4589  ax-cnex 8023  ax-resscn 8024  ax-1re 8026  ax-addrcl 8029
This theorem depends on definitions:  df-bi 117  df-3an 983  df-tru 1376  df-fal 1379  df-nf 1485  df-sb 1787  df-eu 2058  df-mo 2059  df-clab 2193  df-cleq 2199  df-clel 2202  df-nfc 2338  df-ne 2378  df-ral 2490  df-rex 2491  df-rab 2494  df-v 2775  df-sbc 3000  df-dif 3169  df-un 3171  df-in 3173  df-ss 3180  df-nul 3462  df-pw 3619  df-sn 3640  df-pr 3641  df-op 3643  df-uni 3853  df-int 3888  df-br 4048  df-opab 4110  df-mpt 4111  df-id 4344  df-xp 4685  df-rel 4686  df-cnv 4687  df-co 4688  df-dm 4689  df-rn 4690  df-res 4691  df-iota 5237  df-fun 5278  df-fv 5284  df-ov 5954  df-oprab 5955  df-mpo 5956  df-inn 9044  df-ndx 12879  df-slot 12880  df-base 12882  df-sets 12883  df-iress 12884
This theorem is referenced by:  ressplusgd  13005  ressmulrg  13021  ressscag  13059  ressvscag  13060  ressipg  13061
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