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Theorem iswomnimap 7408
Description: The predicate of being weakly omniscient stated in terms of set exponentiation. (Contributed by Jim Kingdon, 9-Jun-2024.)
Assertion
Ref Expression
iswomnimap  |-  ( A  e.  V  ->  ( A  e. WOmni  <->  A. f  e.  ( 2o  ^m  A )DECID  A. x  e.  A  (
f `  x )  =  1o ) )
Distinct variable groups:    A, f, x   
f, V
Allowed substitution hint:    V( x)

Proof of Theorem iswomnimap
StepHypRef Expression
1 iswomni 7407 . . 3  |-  ( A  e.  V  ->  ( A  e. WOmni  <->  A. f ( f : A --> 2o  -> DECID  A. x  e.  A  ( f `  x )  =  1o ) ) )
2 2onn 6732 . . . . . 6  |-  2o  e.  om
3 elmapg 6873 . . . . . 6  |-  ( ( 2o  e.  om  /\  A  e.  V )  ->  ( f  e.  ( 2o  ^m  A )  <-> 
f : A --> 2o ) )
42, 3mpan 424 . . . . 5  |-  ( A  e.  V  ->  (
f  e.  ( 2o 
^m  A )  <->  f : A
--> 2o ) )
54imbi1d 231 . . . 4  |-  ( A  e.  V  ->  (
( f  e.  ( 2o  ^m  A )  -> DECID  A. x  e.  A  ( f `  x
)  =  1o )  <-> 
( f : A --> 2o  -> DECID  A. x  e.  A  ( f `  x
)  =  1o ) ) )
65albidv 1872 . . 3  |-  ( A  e.  V  ->  ( A. f ( f  e.  ( 2o  ^m  A
)  -> DECID  A. x  e.  A  ( f `  x
)  =  1o )  <->  A. f ( f : A --> 2o  -> DECID  A. x  e.  A  ( f `  x
)  =  1o ) ) )
71, 6bitr4d 191 . 2  |-  ( A  e.  V  ->  ( A  e. WOmni  <->  A. f ( f  e.  ( 2o  ^m  A )  -> DECID  A. x  e.  A  ( f `  x
)  =  1o ) ) )
8 df-ral 2516 . 2  |-  ( A. f  e.  ( 2o  ^m  A )DECID 
A. x  e.  A  ( f `  x
)  =  1o  <->  A. f
( f  e.  ( 2o  ^m  A )  -> DECID  A. x  e.  A  ( f `  x
)  =  1o ) )
97, 8bitr4di 198 1  |-  ( A  e.  V  ->  ( A  e. WOmni  <->  A. f  e.  ( 2o  ^m  A )DECID  A. x  e.  A  (
f `  x )  =  1o ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    <-> wb 105  DECID wdc 842   A.wal 1396    = wceq 1398    e. wcel 2202   A.wral 2511   omcom 4694   -->wf 5329   ` cfv 5333  (class class class)co 6028   1oc1o 6618   2oc2o 6619    ^m cmap 6860  WOmnicwomni 7405
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 619  ax-in2 620  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4212  ax-nul 4220  ax-pow 4270  ax-pr 4305  ax-un 4536  ax-setind 4641
This theorem depends on definitions:  df-bi 117  df-dc 843  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ne 2404  df-ral 2516  df-rex 2517  df-v 2805  df-sbc 3033  df-dif 3203  df-un 3205  df-in 3207  df-ss 3214  df-nul 3497  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-uni 3899  df-int 3934  df-br 4094  df-opab 4156  df-id 4396  df-suc 4474  df-iom 4695  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-iota 5293  df-fun 5335  df-fn 5336  df-f 5337  df-fv 5341  df-ov 6031  df-oprab 6032  df-mpo 6033  df-1o 6625  df-2o 6626  df-map 6862  df-womni 7406
This theorem is referenced by:  enwomnilem  7411  nninfdcinf  7413  nninfwlporlem  7415  nninfwlpoim  7421  nninfinfwlpo  7422  iswomninnlem  16765
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