ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  strslfvd GIF version

Theorem strslfvd 13243
Description: Deduction version of strslfv 13246. (Contributed by Mario Carneiro, 15-Nov-2014.) (Revised by Jim Kingdon, 30-Jan-2023.)
Hypotheses
Ref Expression
strslfvd.e (𝐸 = Slot (𝐸‘ndx) ∧ (𝐸‘ndx) ∈ ℕ)
strfvd.s (𝜑𝑆𝑉)
strfvd.f (𝜑 → Fun 𝑆)
strfvd.n (𝜑 → ⟨(𝐸‘ndx), 𝐶⟩ ∈ 𝑆)
Assertion
Ref Expression
strslfvd (𝜑𝐶 = (𝐸𝑆))

Proof of Theorem strslfvd
StepHypRef Expression
1 strslfvd.e . . . 4 (𝐸 = Slot (𝐸‘ndx) ∧ (𝐸‘ndx) ∈ ℕ)
21simpli 111 . . 3 𝐸 = Slot (𝐸‘ndx)
3 strfvd.s . . 3 (𝜑𝑆𝑉)
41simpri 113 . . . 4 (𝐸‘ndx) ∈ ℕ
54a1i 9 . . 3 (𝜑 → (𝐸‘ndx) ∈ ℕ)
62, 3, 5strnfvnd 13221 . 2 (𝜑 → (𝐸𝑆) = (𝑆‘(𝐸‘ndx)))
7 strfvd.f . . 3 (𝜑 → Fun 𝑆)
8 strfvd.n . . 3 (𝜑 → ⟨(𝐸‘ndx), 𝐶⟩ ∈ 𝑆)
9 funopfv 5713 . . 3 (Fun 𝑆 → (⟨(𝐸‘ndx), 𝐶⟩ ∈ 𝑆 → (𝑆‘(𝐸‘ndx)) = 𝐶))
107, 8, 9sylc 62 . 2 (𝜑 → (𝑆‘(𝐸‘ndx)) = 𝐶)
116, 10eqtr2d 2266 1 (𝜑𝐶 = (𝐸𝑆))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104   = wceq 1398  wcel 2203  cop 3691  Fun wfun 5345  cfv 5351  cn 9233  ndxcnx 13198  Slot cslot 13200
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 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2205  ax-14 2206  ax-ext 2214  ax-sep 4227  ax-pow 4286  ax-pr 4321  ax-un 4553
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1812  df-eu 2083  df-mo 2084  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ral 2525  df-rex 2526  df-v 2814  df-sbc 3042  df-un 3214  df-in 3216  df-ss 3223  df-pw 3670  df-sn 3694  df-pr 3695  df-op 3697  df-uni 3914  df-br 4109  df-opab 4171  df-mpt 4172  df-id 4413  df-xp 4754  df-rel 4755  df-cnv 4756  df-co 4757  df-dm 4758  df-rn 4759  df-iota 5311  df-fun 5353  df-fv 5359  df-slot 13205
This theorem is referenced by:  strslssd  13248  1strbas  13319  2strbasg  13322  2stropg  13323
  Copyright terms: Public domain W3C validator