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Theorem 0ellim 4135
Description: A limit ordinal contains the empty set. (Contributed by NM, 15-May-1994.)
Assertion
Ref Expression
0ellim (Lim 𝐴 → ∅ ∈ 𝐴)

Proof of Theorem 0ellim
StepHypRef Expression
1 dflim2 4107 . 2 (Lim 𝐴 ↔ (Ord 𝐴 ∧ ∅ ∈ 𝐴𝐴 = 𝐴))
21simp2bi 920 1 (Lim 𝐴 → ∅ ∈ 𝐴)
Colors of variables: wff set class
Syntax hints:  wi 4   = wceq 1243  wcel 1393  c0 3224   cuni 3580  Ord word 4099  Lim wlim 4101
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100
This theorem depends on definitions:  df-bi 110  df-3an 887  df-ilim 4106
This theorem is referenced by: (None)
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