Theorem rspceaimv 3612

Description: Restricted existential specialization of a universally quantified implication. (Contributed by BJ, 24-Aug-2022.)

Hypothesis

Ref	Expression
rspceaimv.1	⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓))

Assertion

Ref	Expression
rspceaimv	⊢ ((𝐴 ∈ 𝐵 ∧ ∀𝑦 ∈ 𝐶 (𝜓 → 𝜒)) → ∃𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐶 (𝜑 → 𝜒))

Distinct variable groups:   𝑥,𝑦,𝐴   𝑥,𝐵   𝑥,𝐶   𝜓,𝑥   𝜒,𝑥

Allowed substitution hints:   𝜑(𝑥,𝑦)   𝜓(𝑦)   𝜒(𝑦)   𝐵(𝑦)   𝐶(𝑦)

Proof of Theorem rspceaimv

Step	Hyp	Ref	Expression
1		rspceaimv.1	. . . 4 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓))
2	1	imbi1d 340	. . 3 ⊢ (𝑥 = 𝐴 → ((𝜑 → 𝜒) ↔ (𝜓 → 𝜒)))
3	2	ralbidv 3167	. 2 ⊢ (𝑥 = 𝐴 → (∀𝑦 ∈ 𝐶 (𝜑 → 𝜒) ↔ ∀𝑦 ∈ 𝐶 (𝜓 → 𝜒)))
4	3	rspcev 3606	1 ⊢ ((𝐴 ∈ 𝐵 ∧ ∀𝑦 ∈ 𝐶 (𝜓 → 𝜒)) → ∃𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐶 (𝜑 → 𝜒))

Syntax hints:   → wi 4   ↔ wb 205   ∧ wa 394   = wceq 1533   ∈ wcel 2098  ∀wral 3050  ∃wrex 3059

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1905  ax-6 1963  ax-7 2003  ax-8 2100  ax-9 2108  ax-ext 2696

This theorem depends on definitions:  df-bi 206  df-an 395  df-tru 1536  df-ex 1774  df-sb 2060  df-clab 2703  df-cleq 2717  df-clel 2802  df-ral 3051  df-rex 3060

This theorem is referenced by:  brimralrspcev  5210  rexanre  15329  rexico  15336  rlim2lt  15477  rlim3  15478  rlimconst  15524  rlimcn3  15570  reccn2  15577  cn1lem  15578  o1rlimmul  15599  caucvgrlem  15655  divrcnv  15834  chfacffsupp  22802  chfacfscmulfsupp  22805  chfacfpmmulfsupp  22809  tsmsgsum  24087  tsmsres  24092  tsmsxp  24103  metcnpi3  24499  nrginvrcnlem  24652  nghmcn  24706  metdscn  24816  elcncf1di  24859  volcn  25579  itg2cnlem2  25736  abelthlem8  26421  divlogrlim  26614  cxplim  26949  cxploglim  26955  ftalem1  27050  ftalem2  27051  dchrisum0  27498  nmcvcn  30577  blocni  30687  0cnop  31861  0cnfn  31862  idcnop  31863  lnconi  31915  qqhcn  33720  dnicn  36095  ftc1anc  37302  limsupre3uzlem  45258  fourierdlem87  45716