Theorem elin2d 3297

Description: Elementhood in the first set of an intersection - deduction version. (Contributed by Thierry Arnoux, 3-May-2020.)

Hypothesis

Ref	Expression
elin1d.1	⊢ (𝜑 → 𝑋 ∈ (𝐴 ∩ 𝐵))

Assertion

Ref	Expression
elin2d	⊢ (𝜑 → 𝑋 ∈ 𝐵)

Proof of Theorem elin2d

Step	Hyp	Ref	Expression
1		elin1d.1	. 2 ⊢ (𝜑 → 𝑋 ∈ (𝐴 ∩ 𝐵))
2		elinel2 3294	. 2 ⊢ (𝑋 ∈ (𝐴 ∩ 𝐵) → 𝑋 ∈ 𝐵)
3	1, 2	syl 14	1 ⊢ (𝜑 → 𝑋 ∈ 𝐵)

Syntax hints:   → wi 4   ∈ wcel 2128   ∩ cin 3101

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 1427  ax-7 1428  ax-gen 1429  ax-ie1 1473  ax-ie2 1474  ax-8 1484  ax-10 1485  ax-11 1486  ax-i12 1487  ax-bndl 1489  ax-4 1490  ax-17 1506  ax-i9 1510  ax-ial 1514  ax-i5r 1515  ax-ext 2139

This theorem depends on definitions:  df-bi 116  df-tru 1338  df-nf 1441  df-sb 1743  df-clab 2144  df-cleq 2150  df-clel 2153  df-nfc 2288  df-v 2714  df-in 3108

This theorem is referenced by:  elfi2  6917  fiuni  6923  fifo  6925  explecnv  11406  nninfdclemp1  12223  restbasg  12610  txcnp  12713  blin2  12874  bj-charfun  13424  bj-charfundc  13425