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Theorem strslssd 13377
Description: Deduction version of strslss 13378. (Contributed by Mario Carneiro, 15-Nov-2014.) (Revised by Mario Carneiro, 30-Apr-2015.) (Revised by Jim Kingdon, 31-Jan-2023.)
Hypotheses
Ref Expression
strslssd.e (𝐸 = Slot (𝐸‘ndx) ∧ (𝐸‘ndx) ∈ ℕ)
strssd.t (𝜑𝑇𝑉)
strssd.f (𝜑 → Fun 𝑇)
strssd.s (𝜑𝑆𝑇)
strssd.n (𝜑 → ⟨(𝐸‘ndx), 𝐶⟩ ∈ 𝑆)
Assertion
Ref Expression
strslssd (𝜑 → (𝐸𝑇) = (𝐸𝑆))

Proof of Theorem strslssd
StepHypRef Expression
1 strslssd.e . . 3 (𝐸 = Slot (𝐸‘ndx) ∧ (𝐸‘ndx) ∈ ℕ)
2 strssd.t . . 3 (𝜑𝑇𝑉)
3 strssd.f . . 3 (𝜑 → Fun 𝑇)
4 strssd.s . . . 4 (𝜑𝑆𝑇)
5 strssd.n . . . 4 (𝜑 → ⟨(𝐸‘ndx), 𝐶⟩ ∈ 𝑆)
64, 5sseldd 3249 . . 3 (𝜑 → ⟨(𝐸‘ndx), 𝐶⟩ ∈ 𝑇)
71, 2, 3, 6strslfvd 13372 . 2 (𝜑𝐶 = (𝐸𝑇))
82, 4ssexd 4268 . . 3 (𝜑𝑆 ∈ V)
9 funss 5391 . . . 4 (𝑆𝑇 → (Fun 𝑇 → Fun 𝑆))
104, 3, 9sylc 62 . . 3 (𝜑 → Fun 𝑆)
111, 8, 10, 5strslfvd 13372 . 2 (𝜑𝐶 = (𝐸𝑆))
127, 11eqtr3d 2273 1 (𝜑 → (𝐸𝑇) = (𝐸𝑆))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104   = wceq 1402  wcel 2209  Vcvv 2821  wss 3220  cop 3708  Fun wfun 5366  cfv 5372  cn 9283  ndxcnx 13327  Slot cslot 13329
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-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4244  ax-pow 4306  ax-pr 4341  ax-un 4573
This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-v 2823  df-sbc 3052  df-un 3224  df-in 3226  df-ss 3233  df-pw 3687  df-sn 3711  df-pr 3712  df-op 3714  df-uni 3931  df-br 4126  df-opab 4188  df-mpt 4189  df-id 4433  df-xp 4775  df-rel 4776  df-cnv 4777  df-co 4778  df-dm 4779  df-rn 4780  df-iota 5332  df-fun 5374  df-fv 5380  df-slot 13334
This theorem is referenced by:  strslss  13378
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