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Theorem recexprlemss1u 7559
Description: The upper cut of  A  .P.  B is a subset of the upper cut of one. Lemma for recexpr 7561. (Contributed by Jim Kingdon, 27-Dec-2019.)
Hypothesis
Ref Expression
recexpr.1  |-  B  = 
<. { x  |  E. y ( x  <Q  y  /\  ( *Q `  y )  e.  ( 2nd `  A ) ) } ,  {
x  |  E. y
( y  <Q  x  /\  ( *Q `  y
)  e.  ( 1st `  A ) ) }
>.
Assertion
Ref Expression
recexprlemss1u  |-  ( A  e.  P.  ->  ( 2nd `  ( A  .P.  B ) )  C_  ( 2nd `  1P ) )
Distinct variable groups:    x, y, A   
x, B, y

Proof of Theorem recexprlemss1u
Dummy variables  q  z  w  u  f  g are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 recexpr.1 . . . . . 6  |-  B  = 
<. { x  |  E. y ( x  <Q  y  /\  ( *Q `  y )  e.  ( 2nd `  A ) ) } ,  {
x  |  E. y
( y  <Q  x  /\  ( *Q `  y
)  e.  ( 1st `  A ) ) }
>.
21recexprlempr 7555 . . . . 5  |-  ( A  e.  P.  ->  B  e.  P. )
3 df-imp 7392 . . . . . 6  |-  .P.  =  ( y  e.  P. ,  w  e.  P.  |->  <. { u  e.  Q.  |  E. f  e.  Q.  E. g  e.  Q.  (
f  e.  ( 1st `  y )  /\  g  e.  ( 1st `  w
)  /\  u  =  ( f  .Q  g
) ) } ,  { u  e.  Q.  |  E. f  e.  Q.  E. g  e.  Q.  (
f  e.  ( 2nd `  y )  /\  g  e.  ( 2nd `  w
)  /\  u  =  ( f  .Q  g
) ) } >. )
4 mulclnq 7299 . . . . . 6  |-  ( ( f  e.  Q.  /\  g  e.  Q. )  ->  ( f  .Q  g
)  e.  Q. )
53, 4genpelvu 7436 . . . . 5  |-  ( ( A  e.  P.  /\  B  e.  P. )  ->  ( w  e.  ( 2nd `  ( A  .P.  B ) )  <->  E. z  e.  ( 2nd `  A ) E. q  e.  ( 2nd `  B ) w  =  ( z  .Q  q
) ) )
62, 5mpdan 418 . . . 4  |-  ( A  e.  P.  ->  (
w  e.  ( 2nd `  ( A  .P.  B
) )  <->  E. z  e.  ( 2nd `  A
) E. q  e.  ( 2nd `  B
) w  =  ( z  .Q  q ) ) )
71recexprlemelu 7546 . . . . . . . 8  |-  ( q  e.  ( 2nd `  B
)  <->  E. y ( y 
<Q  q  /\  ( *Q `  y )  e.  ( 1st `  A
) ) )
8 ltrelnq 7288 . . . . . . . . . . . . . 14  |-  <Q  C_  ( Q.  X.  Q. )
98brel 4641 . . . . . . . . . . . . 13  |-  ( y 
<Q  q  ->  ( y  e.  Q.  /\  q  e.  Q. ) )
109simpld 111 . . . . . . . . . . . 12  |-  ( y 
<Q  q  ->  y  e. 
Q. )
11 prop 7398 . . . . . . . . . . . . . . . . . 18  |-  ( A  e.  P.  ->  <. ( 1st `  A ) ,  ( 2nd `  A
) >.  e.  P. )
12 elprnqu 7405 . . . . . . . . . . . . . . . . . 18  |-  ( (
<. ( 1st `  A
) ,  ( 2nd `  A ) >.  e.  P.  /\  z  e.  ( 2nd `  A ) )  -> 
z  e.  Q. )
1311, 12sylan 281 . . . . . . . . . . . . . . . . 17  |-  ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  -> 
z  e.  Q. )
14 ltmnqi 7326 . . . . . . . . . . . . . . . . . 18  |-  ( ( y  <Q  q  /\  z  e.  Q. )  ->  ( z  .Q  y
)  <Q  ( z  .Q  q ) )
1514expcom 115 . . . . . . . . . . . . . . . . 17  |-  ( z  e.  Q.  ->  (
y  <Q  q  ->  (
z  .Q  y ) 
<Q  ( z  .Q  q
) ) )
1613, 15syl 14 . . . . . . . . . . . . . . . 16  |-  ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  -> 
( y  <Q  q  ->  ( z  .Q  y
)  <Q  ( z  .Q  q ) ) )
1716adantr 274 . . . . . . . . . . . . . . 15  |-  ( ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  /\  y  e.  Q. )  ->  ( y  <Q  q  ->  ( z  .Q  y
)  <Q  ( z  .Q  q ) ) )
18 prltlu 7410 . . . . . . . . . . . . . . . . . . . 20  |-  ( (
<. ( 1st `  A
) ,  ( 2nd `  A ) >.  e.  P.  /\  ( *Q `  y
)  e.  ( 1st `  A )  /\  z  e.  ( 2nd `  A
) )  ->  ( *Q `  y )  <Q 
z )
1911, 18syl3an1 1253 . . . . . . . . . . . . . . . . . . 19  |-  ( ( A  e.  P.  /\  ( *Q `  y )  e.  ( 1st `  A
)  /\  z  e.  ( 2nd `  A ) )  ->  ( *Q `  y )  <Q  z
)
20193com23 1191 . . . . . . . . . . . . . . . . . 18  |-  ( ( A  e.  P.  /\  z  e.  ( 2nd `  A )  /\  ( *Q `  y )  e.  ( 1st `  A
) )  ->  ( *Q `  y )  <Q 
z )
21203expia 1187 . . . . . . . . . . . . . . . . 17  |-  ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  -> 
( ( *Q `  y )  e.  ( 1st `  A )  ->  ( *Q `  y )  <Q  z
) )
2221adantr 274 . . . . . . . . . . . . . . . 16  |-  ( ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  /\  y  e.  Q. )  ->  ( ( *Q `  y )  e.  ( 1st `  A )  ->  ( *Q `  y )  <Q  z
) )
23 ltmnqi 7326 . . . . . . . . . . . . . . . . . . . . 21  |-  ( ( ( *Q `  y
)  <Q  z  /\  y  e.  Q. )  ->  (
y  .Q  ( *Q
`  y ) ) 
<Q  ( y  .Q  z
) )
2423expcom 115 . . . . . . . . . . . . . . . . . . . 20  |-  ( y  e.  Q.  ->  (
( *Q `  y
)  <Q  z  ->  (
y  .Q  ( *Q
`  y ) ) 
<Q  ( y  .Q  z
) ) )
2524adantr 274 . . . . . . . . . . . . . . . . . . 19  |-  ( ( y  e.  Q.  /\  z  e.  Q. )  ->  ( ( *Q `  y )  <Q  z  ->  ( y  .Q  ( *Q `  y ) ) 
<Q  ( y  .Q  z
) ) )
26 recidnq 7316 . . . . . . . . . . . . . . . . . . . . 21  |-  ( y  e.  Q.  ->  (
y  .Q  ( *Q
`  y ) )  =  1Q )
2726adantr 274 . . . . . . . . . . . . . . . . . . . 20  |-  ( ( y  e.  Q.  /\  z  e.  Q. )  ->  ( y  .Q  ( *Q `  y ) )  =  1Q )
28 mulcomnqg 7306 . . . . . . . . . . . . . . . . . . . 20  |-  ( ( y  e.  Q.  /\  z  e.  Q. )  ->  ( y  .Q  z
)  =  ( z  .Q  y ) )
2927, 28breq12d 3980 . . . . . . . . . . . . . . . . . . 19  |-  ( ( y  e.  Q.  /\  z  e.  Q. )  ->  ( ( y  .Q  ( *Q `  y
) )  <Q  (
y  .Q  z )  <-> 
1Q  <Q  ( z  .Q  y ) ) )
3025, 29sylibd 148 . . . . . . . . . . . . . . . . . 18  |-  ( ( y  e.  Q.  /\  z  e.  Q. )  ->  ( ( *Q `  y )  <Q  z  ->  1Q  <Q  ( z  .Q  y ) ) )
3130ancoms 266 . . . . . . . . . . . . . . . . 17  |-  ( ( z  e.  Q.  /\  y  e.  Q. )  ->  ( ( *Q `  y )  <Q  z  ->  1Q  <Q  ( z  .Q  y ) ) )
3213, 31sylan 281 . . . . . . . . . . . . . . . 16  |-  ( ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  /\  y  e.  Q. )  ->  ( ( *Q `  y )  <Q  z  ->  1Q  <Q  ( z  .Q  y ) ) )
3322, 32syld 45 . . . . . . . . . . . . . . 15  |-  ( ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  /\  y  e.  Q. )  ->  ( ( *Q `  y )  e.  ( 1st `  A )  ->  1Q  <Q  (
z  .Q  y ) ) )
3417, 33anim12d 333 . . . . . . . . . . . . . 14  |-  ( ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  /\  y  e.  Q. )  ->  ( ( y  <Q 
q  /\  ( *Q `  y )  e.  ( 1st `  A ) )  ->  ( (
z  .Q  y ) 
<Q  ( z  .Q  q
)  /\  1Q  <Q  ( z  .Q  y ) ) ) )
35 ltsonq 7321 . . . . . . . . . . . . . . . 16  |-  <Q  Or  Q.
3635, 8sotri 4984 . . . . . . . . . . . . . . 15  |-  ( ( 1Q  <Q  ( z  .Q  y )  /\  (
z  .Q  y ) 
<Q  ( z  .Q  q
) )  ->  1Q  <Q  ( z  .Q  q
) )
3736ancoms 266 . . . . . . . . . . . . . 14  |-  ( ( ( z  .Q  y
)  <Q  ( z  .Q  q )  /\  1Q  <Q  ( z  .Q  y
) )  ->  1Q  <Q  ( z  .Q  q
) )
3834, 37syl6 33 . . . . . . . . . . . . 13  |-  ( ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  /\  y  e.  Q. )  ->  ( ( y  <Q 
q  /\  ( *Q `  y )  e.  ( 1st `  A ) )  ->  1Q  <Q  ( z  .Q  q ) ) )
3938exp4b 365 . . . . . . . . . . . 12  |-  ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  -> 
( y  e.  Q.  ->  ( y  <Q  q  ->  ( ( *Q `  y )  e.  ( 1st `  A )  ->  1Q  <Q  (
z  .Q  q ) ) ) ) )
4010, 39syl5 32 . . . . . . . . . . 11  |-  ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  -> 
( y  <Q  q  ->  ( y  <Q  q  ->  ( ( *Q `  y )  e.  ( 1st `  A )  ->  1Q  <Q  (
z  .Q  q ) ) ) ) )
4140pm2.43d 50 . . . . . . . . . 10  |-  ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  -> 
( y  <Q  q  ->  ( ( *Q `  y )  e.  ( 1st `  A )  ->  1Q  <Q  (
z  .Q  q ) ) ) )
4241impd 252 . . . . . . . . 9  |-  ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  -> 
( ( y  <Q 
q  /\  ( *Q `  y )  e.  ( 1st `  A ) )  ->  1Q  <Q  ( z  .Q  q ) ) )
4342exlimdv 1799 . . . . . . . 8  |-  ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  -> 
( E. y ( y  <Q  q  /\  ( *Q `  y )  e.  ( 1st `  A
) )  ->  1Q  <Q  ( z  .Q  q
) ) )
447, 43syl5bi 151 . . . . . . 7  |-  ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  -> 
( q  e.  ( 2nd `  B )  ->  1Q  <Q  (
z  .Q  q ) ) )
45 breq2 3971 . . . . . . . 8  |-  ( w  =  ( z  .Q  q )  ->  ( 1Q  <Q  w  <->  1Q  <Q  ( z  .Q  q ) ) )
4645biimprcd 159 . . . . . . 7  |-  ( 1Q 
<Q  ( z  .Q  q
)  ->  ( w  =  ( z  .Q  q )  ->  1Q  <Q  w ) )
4744, 46syl6 33 . . . . . 6  |-  ( ( A  e.  P.  /\  z  e.  ( 2nd `  A ) )  -> 
( q  e.  ( 2nd `  B )  ->  ( w  =  ( z  .Q  q
)  ->  1Q  <Q  w ) ) )
4847expimpd 361 . . . . 5  |-  ( A  e.  P.  ->  (
( z  e.  ( 2nd `  A )  /\  q  e.  ( 2nd `  B ) )  ->  ( w  =  ( z  .Q  q )  ->  1Q  <Q  w ) ) )
4948rexlimdvv 2581 . . . 4  |-  ( A  e.  P.  ->  ( E. z  e.  ( 2nd `  A ) E. q  e.  ( 2nd `  B ) w  =  ( z  .Q  q
)  ->  1Q  <Q  w ) )
506, 49sylbid 149 . . 3  |-  ( A  e.  P.  ->  (
w  e.  ( 2nd `  ( A  .P.  B
) )  ->  1Q  <Q  w ) )
51 1pru 7479 . . . 4  |-  ( 2nd `  1P )  =  {
w  |  1Q  <Q  w }
5251abeq2i 2268 . . 3  |-  ( w  e.  ( 2nd `  1P ) 
<->  1Q  <Q  w )
5350, 52syl6ibr 161 . 2  |-  ( A  e.  P.  ->  (
w  e.  ( 2nd `  ( A  .P.  B
) )  ->  w  e.  ( 2nd `  1P ) ) )
5453ssrdv 3134 1  |-  ( A  e.  P.  ->  ( 2nd `  ( A  .P.  B ) )  C_  ( 2nd `  1P ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 103    <-> wb 104    = wceq 1335   E.wex 1472    e. wcel 2128   {cab 2143   E.wrex 2436    C_ wss 3102   <.cop 3564   class class class wbr 3967   ` cfv 5173  (class class class)co 5827   1stc1st 6089   2ndc2nd 6090   Q.cnq 7203   1Qc1q 7204    .Q cmq 7206   *Qcrq 7207    <Q cltq 7208   P.cnp 7214   1Pc1p 7215    .P. cmp 7217
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-coll 4082  ax-sep 4085  ax-nul 4093  ax-pow 4138  ax-pr 4172  ax-un 4396  ax-setind 4499  ax-iinf 4550
This theorem depends on definitions:  df-bi 116  df-dc 821  df-3or 964  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-reu 2442  df-rab 2444  df-v 2714  df-sbc 2938  df-csb 3032  df-dif 3104  df-un 3106  df-in 3108  df-ss 3115  df-nul 3396  df-pw 3546  df-sn 3567  df-pr 3568  df-op 3570  df-uni 3775  df-int 3810  df-iun 3853  df-br 3968  df-opab 4029  df-mpt 4030  df-tr 4066  df-eprel 4252  df-id 4256  df-po 4259  df-iso 4260  df-iord 4329  df-on 4331  df-suc 4334  df-iom 4553  df-xp 4595  df-rel 4596  df-cnv 4597  df-co 4598  df-dm 4599  df-rn 4600  df-res 4601  df-ima 4602  df-iota 5138  df-fun 5175  df-fn 5176  df-f 5177  df-f1 5178  df-fo 5179  df-f1o 5180  df-fv 5181  df-ov 5830  df-oprab 5831  df-mpo 5832  df-1st 6091  df-2nd 6092  df-recs 6255  df-irdg 6320  df-1o 6366  df-oadd 6370  df-omul 6371  df-er 6483  df-ec 6485  df-qs 6489  df-ni 7227  df-pli 7228  df-mi 7229  df-lti 7230  df-plpq 7267  df-mpq 7268  df-enq 7270  df-nqqs 7271  df-plqqs 7272  df-mqqs 7273  df-1nqqs 7274  df-rq 7275  df-ltnqqs 7276  df-inp 7389  df-i1p 7390  df-imp 7392
This theorem is referenced by:  recexprlemex  7560
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