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Theorem iswomnimap 7092
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 7091 . . 3  |-  ( A  e.  V  ->  ( A  e. WOmni  <->  A. f ( f : A --> 2o  -> DECID  A. x  e.  A  ( f `  x )  =  1o ) ) )
2 2onn 6461 . . . . . 6  |-  2o  e.  om
3 elmapg 6599 . . . . . 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 1804 . . 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 2440 . 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 1333    = wceq 1335    e. wcel 2128   A.wral 2435   omcom 4547   -->wf 5163   ` cfv 5167  (class class class)co 5818   1oc1o 6350   2oc2o 6351    ^m cmap 6586  WOmnicwomni 7089
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 1427  ax-7 1428  ax-gen 1429  ax-ie1 1473  ax-ie2 1474  ax-8 1484  ax-10 1485  ax-11 1486  ax-i12 1487  ax-bndl 1489  ax-4 1490  ax-17 1506  ax-i9 1510  ax-ial 1514  ax-i5r 1515  ax-13 2130  ax-14 2131  ax-ext 2139  ax-sep 4082  ax-nul 4090  ax-pow 4134  ax-pr 4168  ax-un 4392  ax-setind 4494
This theorem depends on definitions:  df-bi 116  df-dc 821  df-3an 965  df-tru 1338  df-fal 1341  df-nf 1441  df-sb 1743  df-eu 2009  df-mo 2010  df-clab 2144  df-cleq 2150  df-clel 2153  df-nfc 2288  df-ne 2328  df-ral 2440  df-rex 2441  df-v 2714  df-sbc 2938  df-dif 3104  df-un 3106  df-in 3108  df-ss 3115  df-nul 3395  df-pw 3545  df-sn 3566  df-pr 3567  df-op 3569  df-uni 3773  df-int 3808  df-br 3966  df-opab 4026  df-id 4252  df-suc 4330  df-iom 4548  df-xp 4589  df-rel 4590  df-cnv 4591  df-co 4592  df-dm 4593  df-rn 4594  df-iota 5132  df-fun 5169  df-fn 5170  df-f 5171  df-fv 5175  df-ov 5821  df-oprab 5822  df-mpo 5823  df-1o 6357  df-2o 6358  df-map 6588  df-womni 7090
This theorem is referenced by:  enwomnilem  7095  iswomninnlem  13582
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