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Theorem nlim3 43685
Description: 3 is not a limit ordinal. (Contributed by RP, 13-Dec-2024.)
Assertion
Ref Expression
nlim3 ¬ Lim 3o

Proof of Theorem nlim3
StepHypRef Expression
1 2on 8410 . 2 2o ∈ On
2 nlimsuc 43682 . . 3 (2o ∈ On → ¬ Lim suc 2o)
3 df-3o 8399 . . . 4 3o = suc 2o
4 limeq 6329 . . . 4 (3o = suc 2o → (Lim 3o ↔ Lim suc 2o))
53, 4ax-mp 5 . . 3 (Lim 3o ↔ Lim suc 2o)
62, 5sylnibr 329 . 2 (2o ∈ On → ¬ Lim 3o)
71, 6ax-mp 5 1 ¬ Lim 3o
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wb 206   = wceq 1541  wcel 2113  Oncon0 6317  Lim wlim 6318  suc csuc 6319  2oc2o 8391  3oc3o 8392
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-ext 2708  ax-sep 5241  ax-nul 5251  ax-pr 5377
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-sb 2068  df-clab 2715  df-cleq 2728  df-clel 2811  df-ne 2933  df-ral 3052  df-rex 3061  df-rab 3400  df-v 3442  df-dif 3904  df-un 3906  df-in 3908  df-ss 3918  df-pss 3921  df-nul 4286  df-if 4480  df-pw 4556  df-sn 4581  df-pr 4583  df-op 4587  df-uni 4864  df-br 5099  df-opab 5161  df-tr 5206  df-eprel 5524  df-po 5532  df-so 5533  df-fr 5577  df-we 5579  df-ord 6320  df-on 6321  df-lim 6322  df-suc 6323  df-1o 8397  df-2o 8398  df-3o 8399
This theorem is referenced by: (None)
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