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Theorem smores2 6807
Description: A strictly monotone ordinal function restricted to an ordinal is still monotone. (Contributed by Mario Carneiro, 15-Mar-2013.)
Assertion
Ref Expression
smores2  |-  ( ( Smo  F  /\  Ord  A )  ->  Smo  ( F  |`  A ) )

Proof of Theorem smores2
Dummy variables  x  y are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 dfsmo2 6800 . . . . . . 7  |-  ( Smo 
F  <->  ( F : dom  F --> On  /\  Ord  dom 
F  /\  A. x  e.  dom  F A. y  e.  x  ( F `  y )  e.  ( F `  x ) ) )
21simp1bi 1003 . . . . . 6  |-  ( Smo 
F  ->  F : dom  F --> On )
3 ffun 5556 . . . . . 6  |-  ( F : dom  F --> On  ->  Fun 
F )
42, 3syl 16 . . . . 5  |-  ( Smo 
F  ->  Fun  F )
5 funres 5452 . . . . . 6  |-  ( Fun 
F  ->  Fun  ( F  |`  A ) )
6 funfn 5442 . . . . . 6  |-  ( Fun  ( F  |`  A )  <-> 
( F  |`  A )  Fn  dom  ( F  |`  A ) )
75, 6sylib 196 . . . . 5  |-  ( Fun 
F  ->  ( F  |`  A )  Fn  dom  ( F  |`  A ) )
84, 7syl 16 . . . 4  |-  ( Smo 
F  ->  ( F  |`  A )  Fn  dom  ( F  |`  A ) )
9 df-ima 4848 . . . . . 6  |-  ( F
" A )  =  ran  ( F  |`  A )
10 imassrn 5175 . . . . . 6  |-  ( F
" A )  C_  ran  F
119, 10eqsstr3i 3382 . . . . 5  |-  ran  ( F  |`  A )  C_  ran  F
12 frn 5560 . . . . . 6  |-  ( F : dom  F --> On  ->  ran 
F  C_  On )
132, 12syl 16 . . . . 5  |-  ( Smo 
F  ->  ran  F  C_  On )
1411, 13syl5ss 3362 . . . 4  |-  ( Smo 
F  ->  ran  ( F  |`  A )  C_  On )
15 df-f 5417 . . . 4  |-  ( ( F  |`  A ) : dom  ( F  |`  A ) --> On  <->  ( ( F  |`  A )  Fn 
dom  ( F  |`  A )  /\  ran  ( F  |`  A ) 
C_  On ) )
168, 14, 15sylanbrc 664 . . 3  |-  ( Smo 
F  ->  ( F  |`  A ) : dom  ( F  |`  A ) --> On )
1716adantr 465 . 2  |-  ( ( Smo  F  /\  Ord  A )  ->  ( F  |`  A ) : dom  ( F  |`  A ) --> On )
18 smodm 6804 . . 3  |-  ( Smo 
F  ->  Ord  dom  F
)
19 ordin 4744 . . . . 5  |-  ( ( Ord  A  /\  Ord  dom 
F )  ->  Ord  ( A  i^i  dom  F
) )
20 dmres 5126 . . . . . 6  |-  dom  ( F  |`  A )  =  ( A  i^i  dom  F )
21 ordeq 4721 . . . . . 6  |-  ( dom  ( F  |`  A )  =  ( A  i^i  dom 
F )  ->  ( Ord  dom  ( F  |`  A )  <->  Ord  ( A  i^i  dom  F )
) )
2220, 21ax-mp 5 . . . . 5  |-  ( Ord 
dom  ( F  |`  A )  <->  Ord  ( A  i^i  dom  F )
)
2319, 22sylibr 212 . . . 4  |-  ( ( Ord  A  /\  Ord  dom 
F )  ->  Ord  dom  ( F  |`  A ) )
2423ancoms 453 . . 3  |-  ( ( Ord  dom  F  /\  Ord  A )  ->  Ord  dom  ( F  |`  A ) )
2518, 24sylan 471 . 2  |-  ( ( Smo  F  /\  Ord  A )  ->  Ord  dom  ( F  |`  A ) )
26 resss 5129 . . . . . 6  |-  ( F  |`  A )  C_  F
27 dmss 5034 . . . . . 6  |-  ( ( F  |`  A )  C_  F  ->  dom  ( F  |`  A )  C_  dom  F )
2826, 27ax-mp 5 . . . . 5  |-  dom  ( F  |`  A )  C_  dom  F
291simp3bi 1005 . . . . 5  |-  ( Smo 
F  ->  A. x  e.  dom  F A. y  e.  x  ( F `  y )  e.  ( F `  x ) )
30 ssralv 3411 . . . . 5  |-  ( dom  ( F  |`  A ) 
C_  dom  F  ->  ( A. x  e.  dom  F A. y  e.  x  ( F `  y )  e.  ( F `  x )  ->  A. x  e.  dom  ( F  |`  A ) A. y  e.  x  ( F `  y )  e.  ( F `  x ) ) )
3128, 29, 30mpsyl 63 . . . 4  |-  ( Smo 
F  ->  A. x  e.  dom  ( F  |`  A ) A. y  e.  x  ( F `  y )  e.  ( F `  x ) )
3231adantr 465 . . 3  |-  ( ( Smo  F  /\  Ord  A )  ->  A. x  e.  dom  ( F  |`  A ) A. y  e.  x  ( F `  y )  e.  ( F `  x ) )
33 ordtr1 4757 . . . . . . . . . . 11  |-  ( Ord 
dom  ( F  |`  A )  ->  (
( y  e.  x  /\  x  e.  dom  ( F  |`  A ) )  ->  y  e.  dom  ( F  |`  A ) ) )
3425, 33syl 16 . . . . . . . . . 10  |-  ( ( Smo  F  /\  Ord  A )  ->  ( (
y  e.  x  /\  x  e.  dom  ( F  |`  A ) )  -> 
y  e.  dom  ( F  |`  A ) ) )
35 inss1 3565 . . . . . . . . . . . 12  |-  ( A  i^i  dom  F )  C_  A
3620, 35eqsstri 3381 . . . . . . . . . . 11  |-  dom  ( F  |`  A )  C_  A
3736sseli 3347 . . . . . . . . . 10  |-  ( y  e.  dom  ( F  |`  A )  ->  y  e.  A )
3834, 37syl6 33 . . . . . . . . 9  |-  ( ( Smo  F  /\  Ord  A )  ->  ( (
y  e.  x  /\  x  e.  dom  ( F  |`  A ) )  -> 
y  e.  A ) )
3938expcomd 438 . . . . . . . 8  |-  ( ( Smo  F  /\  Ord  A )  ->  ( x  e.  dom  ( F  |`  A )  ->  (
y  e.  x  -> 
y  e.  A ) ) )
4039imp31 432 . . . . . . 7  |-  ( ( ( ( Smo  F  /\  Ord  A )  /\  x  e.  dom  ( F  |`  A ) )  /\  y  e.  x )  ->  y  e.  A )
41 fvres 5699 . . . . . . 7  |-  ( y  e.  A  ->  (
( F  |`  A ) `
 y )  =  ( F `  y
) )
4240, 41syl 16 . . . . . 6  |-  ( ( ( ( Smo  F  /\  Ord  A )  /\  x  e.  dom  ( F  |`  A ) )  /\  y  e.  x )  ->  ( ( F  |`  A ) `  y
)  =  ( F `
 y ) )
4336sseli 3347 . . . . . . . 8  |-  ( x  e.  dom  ( F  |`  A )  ->  x  e.  A )
44 fvres 5699 . . . . . . . 8  |-  ( x  e.  A  ->  (
( F  |`  A ) `
 x )  =  ( F `  x
) )
4543, 44syl 16 . . . . . . 7  |-  ( x  e.  dom  ( F  |`  A )  ->  (
( F  |`  A ) `
 x )  =  ( F `  x
) )
4645ad2antlr 726 . . . . . 6  |-  ( ( ( ( Smo  F  /\  Ord  A )  /\  x  e.  dom  ( F  |`  A ) )  /\  y  e.  x )  ->  ( ( F  |`  A ) `  x
)  =  ( F `
 x ) )
4742, 46eleq12d 2506 . . . . 5  |-  ( ( ( ( Smo  F  /\  Ord  A )  /\  x  e.  dom  ( F  |`  A ) )  /\  y  e.  x )  ->  ( ( ( F  |`  A ) `  y
)  e.  ( ( F  |`  A ) `  x )  <->  ( F `  y )  e.  ( F `  x ) ) )
4847ralbidva 2726 . . . 4  |-  ( ( ( Smo  F  /\  Ord  A )  /\  x  e.  dom  ( F  |`  A ) )  -> 
( A. y  e.  x  ( ( F  |`  A ) `  y
)  e.  ( ( F  |`  A ) `  x )  <->  A. y  e.  x  ( F `  y )  e.  ( F `  x ) ) )
4948ralbidva 2726 . . 3  |-  ( ( Smo  F  /\  Ord  A )  ->  ( A. x  e.  dom  ( F  |`  A ) A. y  e.  x  ( ( F  |`  A ) `  y )  e.  ( ( F  |`  A ) `
 x )  <->  A. x  e.  dom  ( F  |`  A ) A. y  e.  x  ( F `  y )  e.  ( F `  x ) ) )
5032, 49mpbird 232 . 2  |-  ( ( Smo  F  /\  Ord  A )  ->  A. x  e.  dom  ( F  |`  A ) A. y  e.  x  ( ( F  |`  A ) `  y )  e.  ( ( F  |`  A ) `
 x ) )
51 dfsmo2 6800 . 2  |-  ( Smo  ( F  |`  A )  <-> 
( ( F  |`  A ) : dom  ( F  |`  A ) --> On  /\  Ord  dom  ( F  |`  A )  /\  A. x  e. 
dom  ( F  |`  A ) A. y  e.  x  ( ( F  |`  A ) `  y )  e.  ( ( F  |`  A ) `
 x ) ) )
5217, 25, 50, 51syl3anbrc 1172 1  |-  ( ( Smo  F  /\  Ord  A )  ->  Smo  ( F  |`  A ) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    <-> wb 184    /\ wa 369    = wceq 1369    e. wcel 1756   A.wral 2710    i^i cin 3322    C_ wss 3323   Ord word 4713   Oncon0 4714   dom cdm 4835   ran crn 4836    |` cres 4837   "cima 4838   Fun wfun 5407    Fn wfn 5408   -->wf 5409   ` cfv 5413   Smo wsmo 6798
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1591  ax-4 1602  ax-5 1670  ax-6 1708  ax-7 1728  ax-9 1760  ax-10 1775  ax-11 1780  ax-12 1792  ax-13 1943  ax-ext 2419  ax-sep 4408  ax-nul 4416  ax-pr 4526
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 967  df-tru 1372  df-ex 1587  df-nf 1590  df-sb 1701  df-eu 2256  df-mo 2257  df-clab 2425  df-cleq 2431  df-clel 2434  df-nfc 2563  df-ne 2603  df-ral 2715  df-rex 2716  df-rab 2719  df-v 2969  df-dif 3326  df-un 3328  df-in 3330  df-ss 3337  df-nul 3633  df-if 3787  df-sn 3873  df-pr 3875  df-op 3879  df-uni 4087  df-br 4288  df-opab 4346  df-tr 4381  df-po 4636  df-so 4637  df-fr 4674  df-we 4676  df-ord 4717  df-xp 4841  df-rel 4842  df-cnv 4843  df-co 4844  df-dm 4845  df-rn 4846  df-res 4847  df-ima 4848  df-iota 5376  df-fun 5415  df-fn 5416  df-f 5417  df-fv 5421  df-smo 6799
This theorem is referenced by: (None)
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