Theorem elrabd 3365

Description: Membership in a restricted class abstraction, using implicit substitution. Deduction version of elrab 3363. (Contributed by Glauco Siliprandi, 23-Oct-2021.)

Hypotheses

Ref	Expression
elrabd.1	⊢ (𝑥 = 𝐴 → (𝜓 ↔ 𝜒))
elrabd.2	⊢ (𝜑 → 𝐴 ∈ 𝐵)
elrabd.3	⊢ (𝜑 → 𝜒)

Assertion

Ref	Expression
elrabd	⊢ (𝜑 → 𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜓})

Distinct variable groups:   𝑥,𝐴   𝑥,𝐵   𝜒,𝑥

Allowed substitution hints:   𝜑(𝑥)   𝜓(𝑥)

Proof of Theorem elrabd

Step	Hyp	Ref	Expression
1		elrabd.2	. . 3 ⊢ (𝜑 → 𝐴 ∈ 𝐵)
2		elrabd.3	. . 3 ⊢ (𝜑 → 𝜒)
3	1, 2	jca 554	. 2 ⊢ (𝜑 → (𝐴 ∈ 𝐵 ∧ 𝜒))
4		elrabd.1	. . 3 ⊢ (𝑥 = 𝐴 → (𝜓 ↔ 𝜒))
5	4	elrab 3363	. 2 ⊢ (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜓} ↔ (𝐴 ∈ 𝐵 ∧ 𝜒))
6	3, 5	sylibr 224	1 ⊢ (𝜑 → 𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜓})

Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 384   = wceq 1483   ∈ wcel 1990  {crab 2916

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-rab 2921  df-v 3202

This theorem is referenced by:  lcmgcdlem  15319  upgrreslem  26196  umgrreslem  26197  supminfrnmpt  39672  supminfxr  39694  supminfxr2  39699  supminfxrrnmpt  39701  smflimsuplem5  41030