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Theorem iswomnimap 7088
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 7087 . . 3  |-  ( A  e.  V  ->  ( A  e. WOmni  <->  A. f ( f : A --> 2o  -> DECID  A. x  e.  A  ( f `  x )  =  1o ) ) )
2 2onn 6457 . . . . . 6  |-  2o  e.  om
3 elmapg 6595 . . . . . 6  |-  ( ( 2o  e.  om  /\  A  e.  V )  ->  ( f  e.  ( 2o  ^m  A )  <-> 
f : A --> 2o ) )
42, 3mpan 421 . . . . 5  |-  ( A  e.  V  ->  (
f  e.  ( 2o 
^m  A )  <->  f : A
--> 2o ) )
54imbi1d 230 . . . 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 1801 . . 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 190 . 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 2437 . 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 197 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 104  DECID wdc 820   A.wal 1330    = wceq 1332    e. wcel 2125   A.wral 2432   omcom 4543   -->wf 5159   ` cfv 5163  (class class class)co 5814   1oc1o 6346   2oc2o 6347    ^m cmap 6582  WOmnicwomni 7085
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 604  ax-in2 605  ax-io 699  ax-5 1424  ax-7 1425  ax-gen 1426  ax-ie1 1470  ax-ie2 1471  ax-8 1481  ax-10 1482  ax-11 1483  ax-i12 1484  ax-bndl 1486  ax-4 1487  ax-17 1503  ax-i9 1507  ax-ial 1511  ax-i5r 1512  ax-13 2127  ax-14 2128  ax-ext 2136  ax-sep 4078  ax-nul 4086  ax-pow 4130  ax-pr 4164  ax-un 4388  ax-setind 4490
This theorem depends on definitions:  df-bi 116  df-dc 821  df-3an 965  df-tru 1335  df-fal 1338  df-nf 1438  df-sb 1740  df-eu 2006  df-mo 2007  df-clab 2141  df-cleq 2147  df-clel 2150  df-nfc 2285  df-ne 2325  df-ral 2437  df-rex 2438  df-v 2711  df-sbc 2934  df-dif 3100  df-un 3102  df-in 3104  df-ss 3111  df-nul 3391  df-pw 3541  df-sn 3562  df-pr 3563  df-op 3565  df-uni 3769  df-int 3804  df-br 3962  df-opab 4022  df-id 4248  df-suc 4326  df-iom 4544  df-xp 4585  df-rel 4586  df-cnv 4587  df-co 4588  df-dm 4589  df-rn 4590  df-iota 5128  df-fun 5165  df-fn 5166  df-f 5167  df-fv 5171  df-ov 5817  df-oprab 5818  df-mpo 5819  df-1o 6353  df-2o 6354  df-map 6584  df-womni 7086
This theorem is referenced by:  enwomnilem  7091  iswomninnlem  13561
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