Theorem epel 4413

Description: The epsilon relation and the membership relation are the same. (Contributed by NM, 13-Aug-1995.)

Assertion

Ref	Expression
epel	⊢ (𝑥 E 𝑦 ↔ 𝑥 ∈ 𝑦)

Proof of Theorem epel

Step	Hyp	Ref	Expression
1		vex 2816	. 2 ⊢ 𝑦 ∈ V
2	1	epelc 4412	1 ⊢ (𝑥 E 𝑦 ↔ 𝑥 ∈ 𝑦)

Syntax hints:   ↔ wb 105   class class class wbr 4109   E cep 4408

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-14 2206  ax-ext 2214  ax-sep 4228  ax-pow 4287  ax-pr 4322

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1812  df-eu 2083  df-mo 2084  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-v 2815  df-un 3215  df-in 3217  df-ss 3224  df-pw 3671  df-sn 3695  df-pr 3696  df-op 3698  df-br 4110  df-opab 4172  df-eprel 4410

This theorem is referenced by:  epse  4463  wetrep  4481  ordsoexmid  4684  zfregfr  4696  ordwe  4698  wessep  4700  reg3exmidlemwe  4701  smoiso  6533  nnwetri  7176  ordiso2  7326  frec2uzisod  10769  nnti  16766