Theorem elin1d 3835

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
elin1d	⊢ (𝜑 → 𝑋 ∈ 𝐴)

Proof of Theorem elin1d

Step	Hyp	Ref	Expression
1		elin1d.1	. 2 ⊢ (𝜑 → 𝑋 ∈ (𝐴 ∩ 𝐵))
2		elinel1 3832	. 2 ⊢ (𝑋 ∈ (𝐴 ∩ 𝐵) → 𝑋 ∈ 𝐴)
3	1, 2	syl 17	1 ⊢ (𝜑 → 𝑋 ∈ 𝐴)

Syntax hints:   → wi 4   ∈ wcel 2030   ∩ cin 3606

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1762  ax-4 1777  ax-5 1879  ax-6 1945  ax-7 1981  ax-9 2039  ax-10 2059  ax-11 2074  ax-12 2087  ax-13 2282  ax-ext 2631

This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-tru 1526  df-ex 1745  df-nf 1750  df-sb 1938  df-clab 2638  df-cleq 2644  df-clel 2647  df-nfc 2782  df-v 3233  df-in 3614

This theorem is referenced by:  nmoleub2lem3  22961  nmoleub3  22965  tayl0  24161  esum2d  30283  ispisys2  30344  sigapisys  30346  sigapildsyslem  30352  sigapildsys  30353  eulerpartlemgvv  30566  tgoldbachgt  30869