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Theorem nvel 4181
Description: The universal class does not belong to any class. (Contributed by FL, 31-Dec-2006.)
Assertion
Ref Expression
nvel ¬ V ∈ 𝐴

Proof of Theorem nvel
StepHypRef Expression
1 vprc 4180 . 2 ¬ V ∈ V
2 elex 2784 . 2 (V ∈ 𝐴 → V ∈ V)
31, 2mto 664 1 ¬ V ∈ 𝐴
Colors of variables: wff set class
Syntax hints:  ¬ wn 3  wcel 2177  Vcvv 2773
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-in1 615  ax-in2 616  ax-5 1471  ax-gen 1473  ax-ie1 1517  ax-ie2 1518  ax-8 1528  ax-4 1534  ax-17 1550  ax-i9 1554  ax-ial 1558  ax-13 2179  ax-14 2180  ax-ext 2188  ax-sep 4166
This theorem depends on definitions:  df-bi 117  df-tru 1376  df-fal 1379  df-nf 1485  df-sb 1787  df-clab 2193  df-cleq 2199  df-clel 2202  df-v 2775
This theorem is referenced by: (None)
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