Theorem epel 4395

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 2806	. 2 ⊢ 𝑦 ∈ V
2	1	epelc 4394	1 ⊢ (𝑥 E 𝑦 ↔ 𝑥 ∈ 𝑦)

Syntax hints:   ↔ wb 105   class class class wbr 4093   E cep 4390

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 2205  ax-ext 2213  ax-sep 4212  ax-pow 4270  ax-pr 4305

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-v 2805  df-un 3205  df-in 3207  df-ss 3214  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-br 4094  df-opab 4156  df-eprel 4392

This theorem is referenced by:  epse  4445  wetrep  4463  ordsoexmid  4666  zfregfr  4678  ordwe  4680  wessep  4682  reg3exmidlemwe  4683  smoiso  6511  nnwetri  7151  ordiso2  7277  frec2uzisod  10715  nnti  16695