Users' Mathboxes Mathbox for BJ < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >   Mathboxes  >  bj-peano2 Unicode version

Theorem bj-peano2 15431
Description: Constructive proof of peano2 4627. Temporary note: another possibility is to simply replace sucexg 4530 with bj-sucexg 15414 in the proof of peano2 4627. (Contributed by BJ, 18-Nov-2019.) (Proof modification is discouraged.)
Assertion
Ref Expression
bj-peano2  |-  ( A  e.  om  ->  suc  A  e.  om )

Proof of Theorem bj-peano2
StepHypRef Expression
1 bj-omind 15426 . 2  |- Ind  om
2 bj-indsuc 15420 . 2  |-  (Ind  om  ->  ( A  e.  om  ->  suc  A  e.  om ) )
31, 2ax-mp 5 1  |-  ( A  e.  om  ->  suc  A  e.  om )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2164   suc csuc 4396   omcom 4622  Ind wind 15418
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-io 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-13 2166  ax-14 2167  ax-ext 2175  ax-nul 4155  ax-pr 4238  ax-un 4464  ax-bd0 15305  ax-bdor 15308  ax-bdex 15311  ax-bdeq 15312  ax-bdel 15313  ax-bdsb 15314  ax-bdsep 15376
This theorem depends on definitions:  df-bi 117  df-tru 1367  df-nf 1472  df-sb 1774  df-clab 2180  df-cleq 2186  df-clel 2189  df-nfc 2325  df-ral 2477  df-rex 2478  df-rab 2481  df-v 2762  df-dif 3155  df-un 3157  df-nul 3447  df-sn 3624  df-pr 3625  df-uni 3836  df-int 3871  df-suc 4402  df-iom 4623  df-bdc 15333  df-bj-ind 15419
This theorem is referenced by:  bj-nn0suc  15456  bj-nn0sucALT  15470
  Copyright terms: Public domain W3C validator