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Theorem acexmidlemv 6015
Description: Lemma for acexmid 6016.

This is acexmid 6016 with additional disjoint variable conditions, most notably between  ph and  x.

(Contributed by Jim Kingdon, 6-Aug-2019.)

Hypothesis
Ref Expression
acexmidlemv.choice  |-  E. y A. z  e.  x  A. w  e.  z  E! v  e.  z  E. u  e.  y 
( z  e.  u  /\  v  e.  u
)
Assertion
Ref Expression
acexmidlemv  |-  ( ph  \/  -.  ph )
Distinct variable group:    ph, x, y, z, w, v, u

Proof of Theorem acexmidlemv
Dummy variables  s  t are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 onsucelsucexmidlem 4627 . . . 4  |-  { s  e.  { (/) ,  { (/)
} }  |  ( s  =  (/)  \/  ph ) }  e.  On
2 pp0ex 4279 . . . . 5  |-  { (/) ,  { (/) } }  e.  _V
32rabex 4234 . . . 4  |-  { s  e.  { (/) ,  { (/)
} }  |  ( s  =  { (/) }  \/  ph ) }  e.  _V
4 prexg 4301 . . . 4  |-  ( ( { s  e.  { (/)
,  { (/) } }  |  ( s  =  (/)  \/  ph ) }  e.  On  /\  {
s  e.  { (/) ,  { (/) } }  | 
( s  =  { (/)
}  \/  ph ) }  e.  _V )  ->  { { s  e. 
{ (/) ,  { (/) } }  |  ( s  =  (/)  \/  ph ) } ,  { s  e.  { (/) ,  { (/) } }  |  ( s  =  { (/) }  \/  ph ) } }  e.  _V )
51, 3, 4mp2an 426 . . 3  |-  { {
s  e.  { (/) ,  { (/) } }  | 
( s  =  (/)  \/ 
ph ) } ,  { s  e.  { (/)
,  { (/) } }  |  ( s  =  { (/) }  \/  ph ) } }  e.  _V
6 raleq 2730 . . . 4  |-  ( x  =  { { s  e.  { (/) ,  { (/)
} }  |  ( s  =  (/)  \/  ph ) } ,  { s  e.  { (/) ,  { (/)
} }  |  ( s  =  { (/) }  \/  ph ) } }  ->  ( A. z  e.  x  A. w  e.  z  E! v  e.  z  E. u  e.  y  (
z  e.  u  /\  v  e.  u )  <->  A. z  e.  { {
s  e.  { (/) ,  { (/) } }  | 
( s  =  (/)  \/ 
ph ) } ,  { s  e.  { (/)
,  { (/) } }  |  ( s  =  { (/) }  \/  ph ) } } A. w  e.  z  E! v  e.  z  E. u  e.  y  ( z  e.  u  /\  v  e.  u ) ) )
76exbidv 1873 . . 3  |-  ( x  =  { { s  e.  { (/) ,  { (/)
} }  |  ( s  =  (/)  \/  ph ) } ,  { s  e.  { (/) ,  { (/)
} }  |  ( s  =  { (/) }  \/  ph ) } }  ->  ( E. y A. z  e.  x  A. w  e.  z  E! v  e.  z  E. u  e.  y 
( z  e.  u  /\  v  e.  u
)  <->  E. y A. z  e.  { { s  e. 
{ (/) ,  { (/) } }  |  ( s  =  (/)  \/  ph ) } ,  { s  e.  { (/) ,  { (/) } }  |  ( s  =  { (/) }  \/  ph ) } } A. w  e.  z  E! v  e.  z  E. u  e.  y  (
z  e.  u  /\  v  e.  u )
) )
8 acexmidlemv.choice . . 3  |-  E. y A. z  e.  x  A. w  e.  z  E! v  e.  z  E. u  e.  y 
( z  e.  u  /\  v  e.  u
)
95, 7, 8vtocl 2858 . 2  |-  E. y A. z  e.  { {
s  e.  { (/) ,  { (/) } }  | 
( s  =  (/)  \/ 
ph ) } ,  { s  e.  { (/)
,  { (/) } }  |  ( s  =  { (/) }  \/  ph ) } } A. w  e.  z  E! v  e.  z  E. u  e.  y  ( z  e.  u  /\  v  e.  u )
10 eqeq1 2238 . . . . . 6  |-  ( s  =  t  ->  (
s  =  (/)  <->  t  =  (/) ) )
1110orbi1d 798 . . . . 5  |-  ( s  =  t  ->  (
( s  =  (/)  \/ 
ph )  <->  ( t  =  (/)  \/  ph )
) )
1211cbvrabv 2801 . . . 4  |-  { s  e.  { (/) ,  { (/)
} }  |  ( s  =  (/)  \/  ph ) }  =  {
t  e.  { (/) ,  { (/) } }  | 
( t  =  (/)  \/ 
ph ) }
13 eqeq1 2238 . . . . . 6  |-  ( s  =  t  ->  (
s  =  { (/) }  <-> 
t  =  { (/) } ) )
1413orbi1d 798 . . . . 5  |-  ( s  =  t  ->  (
( s  =  { (/)
}  \/  ph )  <->  ( t  =  { (/) }  \/  ph ) ) )
1514cbvrabv 2801 . . . 4  |-  { s  e.  { (/) ,  { (/)
} }  |  ( s  =  { (/) }  \/  ph ) }  =  { t  e. 
{ (/) ,  { (/) } }  |  ( t  =  { (/) }  \/  ph ) }
16 eqid 2231 . . . 4  |-  { {
s  e.  { (/) ,  { (/) } }  | 
( s  =  (/)  \/ 
ph ) } ,  { s  e.  { (/)
,  { (/) } }  |  ( s  =  { (/) }  \/  ph ) } }  =  { { s  e.  { (/)
,  { (/) } }  |  ( s  =  (/)  \/  ph ) } ,  { s  e. 
{ (/) ,  { (/) } }  |  ( s  =  { (/) }  \/  ph ) } }
1712, 15, 16acexmidlem2 6014 . . 3  |-  ( A. z  e.  { { s  e.  { (/) ,  { (/)
} }  |  ( s  =  (/)  \/  ph ) } ,  { s  e.  { (/) ,  { (/)
} }  |  ( s  =  { (/) }  \/  ph ) } } A. w  e.  z  E! v  e.  z  E. u  e.  y  ( z  e.  u  /\  v  e.  u )  ->  ( ph  \/  -.  ph )
)
1817exlimiv 1646 . 2  |-  ( E. y A. z  e. 
{ { s  e. 
{ (/) ,  { (/) } }  |  ( s  =  (/)  \/  ph ) } ,  { s  e.  { (/) ,  { (/) } }  |  ( s  =  { (/) }  \/  ph ) } } A. w  e.  z  E! v  e.  z  E. u  e.  y  (
z  e.  u  /\  v  e.  u )  ->  ( ph  \/  -.  ph ) )
199, 18ax-mp 5 1  |-  ( ph  \/  -.  ph )
Colors of variables: wff set class
Syntax hints:   -. wn 3    /\ wa 104    \/ wo 715    = wceq 1397   E.wex 1540    e. wcel 2202   A.wral 2510   E.wrex 2511   E!wreu 2512   {crab 2514   _Vcvv 2802   (/)c0 3494   {csn 3669   {cpr 3670   Oncon0 4460
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 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-nul 4215  ax-pow 4264  ax-pr 4299
This theorem depends on definitions:  df-bi 117  df-3or 1005  df-3an 1006  df-tru 1400  df-nf 1509  df-sb 1811  df-eu 2082  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ral 2515  df-rex 2516  df-reu 2517  df-rab 2519  df-v 2804  df-sbc 3032  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-nul 3495  df-pw 3654  df-sn 3675  df-pr 3676  df-uni 3894  df-tr 4188  df-iord 4463  df-on 4465  df-suc 4468  df-iota 5286  df-riota 5970
This theorem is referenced by:  acexmid  6016
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