Theorem elrabd 2866

Description: Membership in a restricted class abstraction, using implicit substitution. Deduction version of elrab 2864. (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 304	. 2 ⊢ (𝜑 → (𝐴 ∈ 𝐵 ∧ 𝜒))
4		elrabd.1	. . 3 ⊢ (𝑥 = 𝐴 → (𝜓 ↔ 𝜒))
5	4	elrab 2864	. 2 ⊢ (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜓} ↔ (𝐴 ∈ 𝐵 ∧ 𝜒))
6	3, 5	sylibr 133	1 ⊢ (𝜑 → 𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜓})

Syntax hints:   → wi 4   ∧ wa 103   ↔ wb 104   = wceq 1332   ∈ wcel 2125  {crab 2436

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 699  ax-5 1424  ax-7 1425  ax-gen 1426  ax-ie1 1470  ax-ie2 1471  ax-8 1481  ax-10 1482  ax-11 1483  ax-i12 1484  ax-bndl 1486  ax-4 1487  ax-17 1503  ax-i9 1507  ax-ial 1511  ax-i5r 1512  ax-ext 2136

This theorem depends on definitions:  df-bi 116  df-tru 1335  df-nf 1438  df-sb 1740  df-clab 2141  df-cleq 2147  df-clel 2150  df-nfc 2285  df-rab 2441  df-v 2711

This theorem is referenced by:  ctssdccl  7041  suplocexprlemru  7618  suplocexprlemloc  7620  znnen  12078  ennnfonelemj0  12081  ennnfonelemg  12083  cdivcncfap  12926  cnopnap  12933  ivthinc  12960  limcdifap  12970  limcimolemlt  12972  dvcoapbr  13010  subctctexmid  13512