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Theorem sucon 4554
Description: The class of all ordinal numbers is its own successor. (Contributed by NM, 12-Sep-2003.)
Assertion
Ref Expression
sucon  |-  suc  On  =  On

Proof of Theorem sucon
StepHypRef Expression
1 onprc 4553 . 2  |-  -.  On  e.  _V
2 sucprc 4414 . 2  |-  ( -.  On  e.  _V  ->  suc 
On  =  On )
31, 2ax-mp 5 1  |-  suc  On  =  On
Colors of variables: wff set class
Syntax hints:   -. wn 3    = wceq 1353    e. wcel 2148   _Vcvv 2739   Oncon0 4365   suc csuc 4367
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 614  ax-in2 615  ax-io 709  ax-5 1447  ax-7 1448  ax-gen 1449  ax-ie1 1493  ax-ie2 1494  ax-8 1504  ax-10 1505  ax-11 1506  ax-i12 1507  ax-bndl 1509  ax-4 1510  ax-17 1526  ax-i9 1530  ax-ial 1534  ax-i5r 1535  ax-ext 2159  ax-setind 4538
This theorem depends on definitions:  df-bi 117  df-3an 980  df-tru 1356  df-fal 1359  df-nf 1461  df-sb 1763  df-clab 2164  df-cleq 2170  df-clel 2173  df-nfc 2308  df-ne 2348  df-ral 2460  df-rex 2461  df-v 2741  df-dif 3133  df-un 3135  df-in 3137  df-ss 3144  df-nul 3425  df-sn 3600  df-uni 3812  df-tr 4104  df-iord 4368  df-on 4370  df-suc 4373
This theorem is referenced by: (None)
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