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Theorem ordtype 7503
Description: For any set-like well-ordered class, there is an isomorphic ordinal number called its order type. (Contributed by Jeff Hankins, 17-Oct-2009.) (Revised by Mario Carneiro, 25-Jun-2015.)
Hypothesis
Ref Expression
oicl.1  |-  F  = OrdIso
( R ,  A
)
Assertion
Ref Expression
ordtype  |-  ( ( R  We  A  /\  R Se  A )  ->  F  Isom  _E  ,  R  ( dom  F ,  A
) )

Proof of Theorem ordtype
Dummy variables  u  t  v  x  h  j  w  z  f 
i  r  s  y are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqid 2438 . . 3  |- recs ( ( h  e.  _V  |->  (
iota_ v  e.  { w  e.  A  |  A. j  e.  ran  h  j R w } A. u  e.  { w  e.  A  |  A. j  e.  ran  h  j R w }  -.  u R v ) ) )  = recs ( ( h  e.  _V  |->  (
iota_ v  e.  { w  e.  A  |  A. j  e.  ran  h  j R w } A. u  e.  { w  e.  A  |  A. j  e.  ran  h  j R w }  -.  u R v ) ) )
2 eqid 2438 . . 3  |-  { w  e.  A  |  A. j  e.  ran  h  j R w }  =  { w  e.  A  |  A. j  e.  ran  h  j R w }
3 eqid 2438 . . 3  |-  ( h  e.  _V  |->  ( iota_ v  e.  { w  e.  A  |  A. j  e.  ran  h  j R w } A. u  e.  { w  e.  A  |  A. j  e.  ran  h  j R w }  -.  u R v ) )  =  ( h  e.  _V  |->  ( iota_ v  e.  {
w  e.  A  |  A. j  e.  ran  h  j R w } A. u  e. 
{ w  e.  A  |  A. j  e.  ran  h  j R w }  -.  u R v ) )
41, 2, 3ordtypecbv 7488 . 2  |- recs ( ( f  e.  _V  |->  (
iota_ s  e.  { y  e.  A  |  A. i  e.  ran  f  i R y } A. r  e.  { y  e.  A  |  A. i  e.  ran  f  i R y }  -.  r R s ) ) )  = recs ( ( h  e.  _V  |->  (
iota_ v  e.  { w  e.  A  |  A. j  e.  ran  h  j R w } A. u  e.  { w  e.  A  |  A. j  e.  ran  h  j R w }  -.  u R v ) ) )
5 eqid 2438 . 2  |-  { x  e.  On  |  E. t  e.  A  A. z  e.  (recs ( ( f  e.  _V  |->  ( iota_ s  e.  { y  e.  A  |  A. i  e.  ran  f  i R y } A. r  e.  { y  e.  A  |  A. i  e.  ran  f  i R y }  -.  r R s ) ) )
" x ) z R t }  =  { x  e.  On  |  E. t  e.  A  A. z  e.  (recs ( ( f  e. 
_V  |->  ( iota_ s  e. 
{ y  e.  A  |  A. i  e.  ran  f  i R y } A. r  e. 
{ y  e.  A  |  A. i  e.  ran  f  i R y }  -.  r R s ) ) )
" x ) z R t }
6 oicl.1 . 2  |-  F  = OrdIso
( R ,  A
)
7 simpl 445 . 2  |-  ( ( R  We  A  /\  R Se  A )  ->  R  We  A )
8 simpr 449 . 2  |-  ( ( R  We  A  /\  R Se  A )  ->  R Se  A )
94, 2, 3, 5, 6, 7, 8ordtypelem10 7498 1  |-  ( ( R  We  A  /\  R Se  A )  ->  F  Isom  _E  ,  R  ( dom  F ,  A
) )
Colors of variables: wff set class
Syntax hints:   -. wn 3    -> wi 4    /\ wa 360    = wceq 1653   A.wral 2707   E.wrex 2708   {crab 2711   _Vcvv 2958   class class class wbr 4214    e. cmpt 4268    _E cep 4494   Se wse 4541    We wwe 4542   Oncon0 4583   dom cdm 4880   ran crn 4881   "cima 4883    Isom wiso 5457   iota_crio 6544  recscrecs 6634  OrdIsocoi 7480
This theorem is referenced by:  oiexg  7506  oiiso  7508  oieu  7510
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1556  ax-5 1567  ax-17 1627  ax-9 1667  ax-8 1688  ax-13 1728  ax-14 1730  ax-6 1745  ax-7 1750  ax-11 1762  ax-12 1951  ax-ext 2419  ax-rep 4322  ax-sep 4332  ax-nul 4340  ax-pow 4379  ax-pr 4405  ax-un 4703
This theorem depends on definitions:  df-bi 179  df-or 361  df-an 362  df-3or 938  df-3an 939  df-tru 1329  df-ex 1552  df-nf 1555  df-sb 1660  df-eu 2287  df-mo 2288  df-clab 2425  df-cleq 2431  df-clel 2434  df-nfc 2563  df-ne 2603  df-ral 2712  df-rex 2713  df-reu 2714  df-rmo 2715  df-rab 2716  df-v 2960  df-sbc 3164  df-csb 3254  df-dif 3325  df-un 3327  df-in 3329  df-ss 3336  df-pss 3338  df-nul 3631  df-if 3742  df-pw 3803  df-sn 3822  df-pr 3823  df-tp 3824  df-op 3825  df-uni 4018  df-iun 4097  df-br 4215  df-opab 4269  df-mpt 4270  df-tr 4305  df-eprel 4496  df-id 4500  df-po 4505  df-so 4506  df-fr 4543  df-se 4544  df-we 4545  df-ord 4586  df-on 4587  df-lim 4588  df-suc 4589  df-xp 4886  df-rel 4887  df-cnv 4888  df-co 4889  df-dm 4890  df-rn 4891  df-res 4892  df-ima 4893  df-iota 5420  df-fun 5458  df-fn 5459  df-f 5460  df-f1 5461  df-fo 5462  df-f1o 5463  df-fv 5464  df-isom 5465  df-riota 6551  df-recs 6635  df-oi 7481
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