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Theorem strssd 16527
Description: Deduction version of strss 16528. (Contributed by Mario Carneiro, 15-Nov-2014.) (Revised by Mario Carneiro, 30-Apr-2015.)
Hypotheses
Ref Expression
strssd.e 𝐸 = Slot (𝐸‘ndx)
strssd.t (𝜑𝑇𝑉)
strssd.f (𝜑 → Fun 𝑇)
strssd.s (𝜑𝑆𝑇)
strssd.n (𝜑 → ⟨(𝐸‘ndx), 𝐶⟩ ∈ 𝑆)
Assertion
Ref Expression
strssd (𝜑 → (𝐸𝑇) = (𝐸𝑆))

Proof of Theorem strssd
StepHypRef Expression
1 strssd.e . . 3 𝐸 = Slot (𝐸‘ndx)
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 3967 . . 3 (𝜑 → ⟨(𝐸‘ndx), 𝐶⟩ ∈ 𝑇)
71, 2, 3, 6strfvd 16522 . 2 (𝜑𝐶 = (𝐸𝑇))
82, 4ssexd 5220 . . 3 (𝜑𝑆 ∈ V)
9 funss 6368 . . . 4 (𝑆𝑇 → (Fun 𝑇 → Fun 𝑆))
104, 3, 9sylc 65 . . 3 (𝜑 → Fun 𝑆)
111, 8, 10, 5strfvd 16522 . 2 (𝜑𝐶 = (𝐸𝑆))
127, 11eqtr3d 2858 1 (𝜑 → (𝐸𝑇) = (𝐸𝑆))
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1533  wcel 2110  Vcvv 3494  wss 3935  cop 4566  Fun wfun 6343  cfv 6349  ndxcnx 16474  Slot cslot 16476
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2157  ax-12 2173  ax-ext 2793  ax-sep 5195  ax-nul 5202  ax-pr 5321
This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ral 3143  df-rex 3144  df-rab 3147  df-v 3496  df-sbc 3772  df-dif 3938  df-un 3940  df-in 3942  df-ss 3951  df-nul 4291  df-if 4467  df-sn 4561  df-pr 4563  df-op 4567  df-uni 4832  df-br 5059  df-opab 5121  df-mpt 5139  df-id 5454  df-xp 5555  df-rel 5556  df-cnv 5557  df-co 5558  df-dm 5559  df-iota 6308  df-fun 6351  df-fv 6357  df-slot 16481
This theorem is referenced by:  strss  16528
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