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Theorem dfom4 9178
Description: A simplification of df-om 7594 assuming the Axiom of Infinity. (Contributed by NM, 30-May-2003.)
Assertion
Ref Expression
dfom4 ω = {𝑥 ∣ ∀𝑦(Lim 𝑦𝑥𝑦)}
Distinct variable group:   𝑥,𝑦

Proof of Theorem dfom4
StepHypRef Expression
1 elom3 9177 . 2 (𝑥 ∈ ω ↔ ∀𝑦(Lim 𝑦𝑥𝑦))
21abbi2i 2871 1 ω = {𝑥 ∣ ∀𝑦(Lim 𝑦𝑥𝑦)}
Colors of variables: wff setvar class
Syntax hints:  wi 4  wal 1540   = wceq 1542  {cab 2716  Lim wlim 6167  ωcom 7593
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1916  ax-6 1974  ax-7 2019  ax-8 2115  ax-9 2123  ax-10 2144  ax-11 2161  ax-12 2178  ax-ext 2710  ax-sep 5164  ax-nul 5171  ax-pr 5293  ax-un 7473  ax-inf2 9170
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 847  df-3or 1089  df-3an 1090  df-tru 1545  df-fal 1555  df-ex 1787  df-nf 1791  df-sb 2074  df-clab 2717  df-cleq 2730  df-clel 2811  df-nfc 2881  df-ne 2935  df-ral 3058  df-rex 3059  df-rab 3062  df-v 3399  df-dif 3844  df-un 3846  df-in 3848  df-ss 3858  df-pss 3860  df-nul 4210  df-if 4412  df-pw 4487  df-sn 4514  df-pr 4516  df-tp 4518  df-op 4520  df-uni 4794  df-br 5028  df-opab 5090  df-tr 5134  df-eprel 5430  df-po 5438  df-so 5439  df-fr 5478  df-we 5480  df-ord 6169  df-on 6170  df-lim 6171  df-suc 6172  df-om 7594
This theorem is referenced by: (None)
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