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Theorem ltexprlemrl 7572
Description: Lemma for ltexpri 7575. Reverse direction of our result for lower cuts. (Contributed by Jim Kingdon, 17-Dec-2019.)
Hypothesis
Ref Expression
ltexprlem.1  |-  C  = 
<. { x  e.  Q.  |  E. y ( y  e.  ( 2nd `  A
)  /\  ( y  +Q  x )  e.  ( 1st `  B ) ) } ,  {
x  e.  Q.  |  E. y ( y  e.  ( 1st `  A
)  /\  ( y  +Q  x )  e.  ( 2nd `  B ) ) } >.
Assertion
Ref Expression
ltexprlemrl  |-  ( A 
<P  B  ->  ( 1st `  B )  C_  ( 1st `  ( A  +P.  C ) ) )
Distinct variable groups:    x, y, A   
x, B, y    x, C, y

Proof of Theorem ltexprlemrl
Dummy variables  z  w  u  v  f  g  h  s are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 ltrelpr 7467 . . . . . . . 8  |-  <P  C_  ( P.  X.  P. )
21brel 4663 . . . . . . 7  |-  ( A 
<P  B  ->  ( A  e.  P.  /\  B  e.  P. ) )
32simprd 113 . . . . . 6  |-  ( A 
<P  B  ->  B  e. 
P. )
4 prop 7437 . . . . . 6  |-  ( B  e.  P.  ->  <. ( 1st `  B ) ,  ( 2nd `  B
) >.  e.  P. )
53, 4syl 14 . . . . 5  |-  ( A 
<P  B  ->  <. ( 1st `  B ) ,  ( 2nd `  B
) >.  e.  P. )
6 prnmaddl 7452 . . . . 5  |-  ( (
<. ( 1st `  B
) ,  ( 2nd `  B ) >.  e.  P.  /\  w  e.  ( 1st `  B ) )  ->  E. v  e.  Q.  ( w  +Q  v
)  e.  ( 1st `  B ) )
75, 6sylan 281 . . . 4  |-  ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  ->  E. v  e.  Q.  ( w  +Q  v
)  e.  ( 1st `  B ) )
82simpld 111 . . . . . . . 8  |-  ( A 
<P  B  ->  A  e. 
P. )
9 prop 7437 . . . . . . . 8  |-  ( A  e.  P.  ->  <. ( 1st `  A ) ,  ( 2nd `  A
) >.  e.  P. )
108, 9syl 14 . . . . . . 7  |-  ( A 
<P  B  ->  <. ( 1st `  A ) ,  ( 2nd `  A
) >.  e.  P. )
11 prarloc 7465 . . . . . . 7  |-  ( (
<. ( 1st `  A
) ,  ( 2nd `  A ) >.  e.  P.  /\  v  e.  Q. )  ->  E. z  e.  ( 1st `  A ) E. u  e.  ( 2nd `  A ) u  <Q  ( z  +Q  v ) )
1210, 11sylan 281 . . . . . 6  |-  ( ( A  <P  B  /\  v  e.  Q. )  ->  E. z  e.  ( 1st `  A ) E. u  e.  ( 2nd `  A ) u  <Q  ( z  +Q  v ) )
1312ad2ant2r 506 . . . . 5  |-  ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  ->  E. z  e.  ( 1st `  A ) E. u  e.  ( 2nd `  A ) u  <Q  ( z  +Q  v ) )
14 simplll 528 . . . . . . . . . . 11  |-  ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  (
w  +Q  v )  e.  ( 1st `  B
) ) )  /\  ( z  e.  ( 1st `  A )  /\  u  e.  ( 2nd `  A ) ) )  ->  A  <P  B )
1514adantr 274 . . . . . . . . . 10  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  A  <P  B )
16 simplrl 530 . . . . . . . . . 10  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  z  e.  ( 1st `  A
) )
17 elprnql 7443 . . . . . . . . . . 11  |-  ( (
<. ( 1st `  A
) ,  ( 2nd `  A ) >.  e.  P.  /\  z  e.  ( 1st `  A ) )  -> 
z  e.  Q. )
1810, 17sylan 281 . . . . . . . . . 10  |-  ( ( A  <P  B  /\  z  e.  ( 1st `  A ) )  -> 
z  e.  Q. )
1915, 16, 18syl2anc 409 . . . . . . . . 9  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  z  e.  Q. )
20 elprnql 7443 . . . . . . . . . . 11  |-  ( (
<. ( 1st `  B
) ,  ( 2nd `  B ) >.  e.  P.  /\  w  e.  ( 1st `  B ) )  ->  w  e.  Q. )
215, 20sylan 281 . . . . . . . . . 10  |-  ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  ->  w  e.  Q. )
2221ad3antrrr 489 . . . . . . . . 9  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  w  e.  Q. )
23 nqtri3or 7358 . . . . . . . . 9  |-  ( ( z  e.  Q.  /\  w  e.  Q. )  ->  ( z  <Q  w  \/  z  =  w  \/  w  <Q  z ) )
2419, 22, 23syl2anc 409 . . . . . . . 8  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  (
z  <Q  w  \/  z  =  w  \/  w  <Q  z ) )
25 ltexnqq 7370 . . . . . . . . . . . . 13  |-  ( ( z  e.  Q.  /\  w  e.  Q. )  ->  ( z  <Q  w  <->  E. s  e.  Q.  (
z  +Q  s )  =  w ) )
2619, 22, 25syl2anc 409 . . . . . . . . . . . 12  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  (
z  <Q  w  <->  E. s  e.  Q.  ( z  +Q  s )  =  w ) )
2726biimpa 294 . . . . . . . . . . 11  |-  ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  ->  E. s  e.  Q.  ( z  +Q  s )  =  w )
28 simprr 527 . . . . . . . . . . . 12  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  ( z  +Q  s )  =  w )
2916ad2antrr 485 . . . . . . . . . . . . 13  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  z  e.  ( 1st `  A ) )
30 simprl 526 . . . . . . . . . . . . . 14  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  s  e.  Q. )
31 simpr 109 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  u  <Q  ( z  +Q  v
) )
32 simplrr 531 . . . . . . . . . . . . . . . . . 18  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  u  e.  ( 2nd `  A
) )
33 prcunqu 7447 . . . . . . . . . . . . . . . . . . 19  |-  ( (
<. ( 1st `  A
) ,  ( 2nd `  A ) >.  e.  P.  /\  u  e.  ( 2nd `  A ) )  -> 
( u  <Q  (
z  +Q  v )  ->  ( z  +Q  v )  e.  ( 2nd `  A ) ) )
3410, 33sylan 281 . . . . . . . . . . . . . . . . . 18  |-  ( ( A  <P  B  /\  u  e.  ( 2nd `  A ) )  -> 
( u  <Q  (
z  +Q  v )  ->  ( z  +Q  v )  e.  ( 2nd `  A ) ) )
3515, 32, 34syl2anc 409 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  (
u  <Q  ( z  +Q  v )  ->  (
z  +Q  v )  e.  ( 2nd `  A
) ) )
3631, 35mpd 13 . . . . . . . . . . . . . . . 16  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  (
z  +Q  v )  e.  ( 2nd `  A
) )
3736ad2antrr 485 . . . . . . . . . . . . . . 15  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  ( z  +Q  v )  e.  ( 2nd `  A ) )
3819ad2antrr 485 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  z  e.  Q. )
39 simplrl 530 . . . . . . . . . . . . . . . . . 18  |-  ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  (
w  +Q  v )  e.  ( 1st `  B
) ) )  /\  ( z  e.  ( 1st `  A )  /\  u  e.  ( 2nd `  A ) ) )  ->  v  e.  Q. )
4039ad3antrrr 489 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  v  e.  Q. )
41 addcomnqg 7343 . . . . . . . . . . . . . . . . . 18  |-  ( ( f  e.  Q.  /\  g  e.  Q. )  ->  ( f  +Q  g
)  =  ( g  +Q  f ) )
4241adantl 275 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  (
w  +Q  v )  e.  ( 1st `  B
) ) )  /\  ( z  e.  ( 1st `  A )  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  /\  ( f  e.  Q.  /\  g  e.  Q. ) )  -> 
( f  +Q  g
)  =  ( g  +Q  f ) )
43 addassnqg 7344 . . . . . . . . . . . . . . . . . 18  |-  ( ( f  e.  Q.  /\  g  e.  Q.  /\  h  e.  Q. )  ->  (
( f  +Q  g
)  +Q  h )  =  ( f  +Q  ( g  +Q  h
) ) )
4443adantl 275 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  (
w  +Q  v )  e.  ( 1st `  B
) ) )  /\  ( z  e.  ( 1st `  A )  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  /\  ( f  e.  Q.  /\  g  e.  Q.  /\  h  e. 
Q. ) )  -> 
( ( f  +Q  g )  +Q  h
)  =  ( f  +Q  ( g  +Q  h ) ) )
4538, 40, 30, 42, 44caov32d 6033 . . . . . . . . . . . . . . . 16  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  ( (
z  +Q  v )  +Q  s )  =  ( ( z  +Q  s )  +Q  v
) )
46 simplrr 531 . . . . . . . . . . . . . . . . . 18  |-  ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  (
w  +Q  v )  e.  ( 1st `  B
) ) )  /\  ( z  e.  ( 1st `  A )  /\  u  e.  ( 2nd `  A ) ) )  ->  (
w  +Q  v )  e.  ( 1st `  B
) )
4746ad3antrrr 489 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  ( w  +Q  v )  e.  ( 1st `  B ) )
48 oveq1 5860 . . . . . . . . . . . . . . . . . . 19  |-  ( ( z  +Q  s )  =  w  ->  (
( z  +Q  s
)  +Q  v )  =  ( w  +Q  v ) )
4948eleq1d 2239 . . . . . . . . . . . . . . . . . 18  |-  ( ( z  +Q  s )  =  w  ->  (
( ( z  +Q  s )  +Q  v
)  e.  ( 1st `  B )  <->  ( w  +Q  v )  e.  ( 1st `  B ) ) )
5028, 49syl 14 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  ( (
( z  +Q  s
)  +Q  v )  e.  ( 1st `  B
)  <->  ( w  +Q  v )  e.  ( 1st `  B ) ) )
5147, 50mpbird 166 . . . . . . . . . . . . . . . 16  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  ( (
z  +Q  s )  +Q  v )  e.  ( 1st `  B
) )
5245, 51eqeltrd 2247 . . . . . . . . . . . . . . 15  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  ( (
z  +Q  v )  +Q  s )  e.  ( 1st `  B
) )
53 eleq1 2233 . . . . . . . . . . . . . . . . . 18  |-  ( y  =  ( z  +Q  v )  ->  (
y  e.  ( 2nd `  A )  <->  ( z  +Q  v )  e.  ( 2nd `  A ) ) )
54 oveq1 5860 . . . . . . . . . . . . . . . . . . 19  |-  ( y  =  ( z  +Q  v )  ->  (
y  +Q  s )  =  ( ( z  +Q  v )  +Q  s ) )
5554eleq1d 2239 . . . . . . . . . . . . . . . . . 18  |-  ( y  =  ( z  +Q  v )  ->  (
( y  +Q  s
)  e.  ( 1st `  B )  <->  ( (
z  +Q  v )  +Q  s )  e.  ( 1st `  B
) ) )
5653, 55anbi12d 470 . . . . . . . . . . . . . . . . 17  |-  ( y  =  ( z  +Q  v )  ->  (
( y  e.  ( 2nd `  A )  /\  ( y  +Q  s )  e.  ( 1st `  B ) )  <->  ( ( z  +Q  v )  e.  ( 2nd `  A
)  /\  ( (
z  +Q  v )  +Q  s )  e.  ( 1st `  B
) ) ) )
5756spcegv 2818 . . . . . . . . . . . . . . . 16  |-  ( ( z  +Q  v )  e.  ( 2nd `  A
)  ->  ( (
( z  +Q  v
)  e.  ( 2nd `  A )  /\  (
( z  +Q  v
)  +Q  s )  e.  ( 1st `  B
) )  ->  E. y
( y  e.  ( 2nd `  A )  /\  ( y  +Q  s )  e.  ( 1st `  B ) ) ) )
5857anabsi5 574 . . . . . . . . . . . . . . 15  |-  ( ( ( z  +Q  v
)  e.  ( 2nd `  A )  /\  (
( z  +Q  v
)  +Q  s )  e.  ( 1st `  B
) )  ->  E. y
( y  e.  ( 2nd `  A )  /\  ( y  +Q  s )  e.  ( 1st `  B ) ) )
5937, 52, 58syl2anc 409 . . . . . . . . . . . . . 14  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  E. y
( y  e.  ( 2nd `  A )  /\  ( y  +Q  s )  e.  ( 1st `  B ) ) )
60 ltexprlem.1 . . . . . . . . . . . . . . 15  |-  C  = 
<. { x  e.  Q.  |  E. y ( y  e.  ( 2nd `  A
)  /\  ( y  +Q  x )  e.  ( 1st `  B ) ) } ,  {
x  e.  Q.  |  E. y ( y  e.  ( 1st `  A
)  /\  ( y  +Q  x )  e.  ( 2nd `  B ) ) } >.
6160ltexprlemell 7560 . . . . . . . . . . . . . 14  |-  ( s  e.  ( 1st `  C
)  <->  ( s  e. 
Q.  /\  E. y
( y  e.  ( 2nd `  A )  /\  ( y  +Q  s )  e.  ( 1st `  B ) ) ) )
6230, 59, 61sylanbrc 415 . . . . . . . . . . . . 13  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  s  e.  ( 1st `  C ) )
6315, 8syl 14 . . . . . . . . . . . . . . 15  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  A  e.  P. )
6463ad2antrr 485 . . . . . . . . . . . . . 14  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  A  e.  P. )
6560ltexprlempr 7570 . . . . . . . . . . . . . . . 16  |-  ( A 
<P  B  ->  C  e. 
P. )
6615, 65syl 14 . . . . . . . . . . . . . . 15  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  C  e.  P. )
6766ad2antrr 485 . . . . . . . . . . . . . 14  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  C  e.  P. )
68 df-iplp 7430 . . . . . . . . . . . . . . 15  |-  +P.  =  ( x  e.  P. ,  w  e.  P.  |->  <. { z  e.  Q.  |  E. f  e.  Q.  E. v  e.  Q.  (
f  e.  ( 1st `  x )  /\  v  e.  ( 1st `  w
)  /\  z  =  ( f  +Q  v
) ) } ,  { z  e.  Q.  |  E. f  e.  Q.  E. v  e.  Q.  (
f  e.  ( 2nd `  x )  /\  v  e.  ( 2nd `  w
)  /\  z  =  ( f  +Q  v
) ) } >. )
69 addclnq 7337 . . . . . . . . . . . . . . 15  |-  ( ( f  e.  Q.  /\  v  e.  Q. )  ->  ( f  +Q  v
)  e.  Q. )
7068, 69genpprecll 7476 . . . . . . . . . . . . . 14  |-  ( ( A  e.  P.  /\  C  e.  P. )  ->  ( ( z  e.  ( 1st `  A
)  /\  s  e.  ( 1st `  C ) )  ->  ( z  +Q  s )  e.  ( 1st `  ( A  +P.  C ) ) ) )
7164, 67, 70syl2anc 409 . . . . . . . . . . . . 13  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  ( (
z  e.  ( 1st `  A )  /\  s  e.  ( 1st `  C
) )  ->  (
z  +Q  s )  e.  ( 1st `  ( A  +P.  C ) ) ) )
7229, 62, 71mp2and 431 . . . . . . . . . . . 12  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  ( z  +Q  s )  e.  ( 1st `  ( A  +P.  C ) ) )
7328, 72eqeltrrd 2248 . . . . . . . . . . 11  |-  ( ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  /\  (
s  e.  Q.  /\  ( z  +Q  s
)  =  w ) )  ->  w  e.  ( 1st `  ( A  +P.  C ) ) )
7427, 73rexlimddv 2592 . . . . . . . . . 10  |-  ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  <Q  w )  ->  w  e.  ( 1st `  ( A  +P.  C ) ) )
7574ex 114 . . . . . . . . 9  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  (
z  <Q  w  ->  w  e.  ( 1st `  ( A  +P.  C ) ) ) )
7614ad2antrr 485 . . . . . . . . . . 11  |-  ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  =  w )  ->  A  <P  B )
77 simpr 109 . . . . . . . . . . . 12  |-  ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  =  w )  ->  z  =  w )
7816adantr 274 . . . . . . . . . . . 12  |-  ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  =  w )  ->  z  e.  ( 1st `  A
) )
7977, 78eqeltrrd 2248 . . . . . . . . . . 11  |-  ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  =  w )  ->  w  e.  ( 1st `  A
) )
80 ltaddpr 7559 . . . . . . . . . . . . 13  |-  ( ( A  e.  P.  /\  C  e.  P. )  ->  A  <P  ( A  +P.  C ) )
818, 65, 80syl2anc 409 . . . . . . . . . . . 12  |-  ( A 
<P  B  ->  A  <P  ( A  +P.  C ) )
82 ltprordil 7551 . . . . . . . . . . . . 13  |-  ( A 
<P  ( A  +P.  C
)  ->  ( 1st `  A )  C_  ( 1st `  ( A  +P.  C ) ) )
8382sseld 3146 . . . . . . . . . . . 12  |-  ( A 
<P  ( A  +P.  C
)  ->  ( w  e.  ( 1st `  A
)  ->  w  e.  ( 1st `  ( A  +P.  C ) ) ) )
8481, 83syl 14 . . . . . . . . . . 11  |-  ( A 
<P  B  ->  ( w  e.  ( 1st `  A
)  ->  w  e.  ( 1st `  ( A  +P.  C ) ) ) )
8576, 79, 84sylc 62 . . . . . . . . . 10  |-  ( ( ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  /\  z  =  w )  ->  w  e.  ( 1st `  ( A  +P.  C ) ) )
8685ex 114 . . . . . . . . 9  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  (
z  =  w  ->  w  e.  ( 1st `  ( A  +P.  C
) ) ) )
87 prcdnql 7446 . . . . . . . . . . . 12  |-  ( (
<. ( 1st `  A
) ,  ( 2nd `  A ) >.  e.  P.  /\  z  e.  ( 1st `  A ) )  -> 
( w  <Q  z  ->  w  e.  ( 1st `  A ) ) )
8810, 87sylan 281 . . . . . . . . . . 11  |-  ( ( A  <P  B  /\  z  e.  ( 1st `  A ) )  -> 
( w  <Q  z  ->  w  e.  ( 1st `  A ) ) )
8915, 16, 88syl2anc 409 . . . . . . . . . 10  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  (
w  <Q  z  ->  w  e.  ( 1st `  A
) ) )
9015, 89, 84sylsyld 58 . . . . . . . . 9  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  (
w  <Q  z  ->  w  e.  ( 1st `  ( A  +P.  C ) ) ) )
9175, 86, 903jaod 1299 . . . . . . . 8  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  (
( z  <Q  w  \/  z  =  w  \/  w  <Q  z )  ->  w  e.  ( 1st `  ( A  +P.  C ) ) ) )
9224, 91mpd 13 . . . . . . 7  |-  ( ( ( ( ( A 
<P  B  /\  w  e.  ( 1st `  B
) )  /\  (
v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  /\  ( z  e.  ( 1st `  A
)  /\  u  e.  ( 2nd `  A ) ) )  /\  u  <Q  ( z  +Q  v
) )  ->  w  e.  ( 1st `  ( A  +P.  C ) ) )
9392ex 114 . . . . . 6  |-  ( ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  (
w  +Q  v )  e.  ( 1st `  B
) ) )  /\  ( z  e.  ( 1st `  A )  /\  u  e.  ( 2nd `  A ) ) )  ->  (
u  <Q  ( z  +Q  v )  ->  w  e.  ( 1st `  ( A  +P.  C ) ) ) )
9493rexlimdvva 2595 . . . . 5  |-  ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  ->  ( E. z  e.  ( 1st `  A
) E. u  e.  ( 2nd `  A
) u  <Q  (
z  +Q  v )  ->  w  e.  ( 1st `  ( A  +P.  C ) ) ) )
9513, 94mpd 13 . . . 4  |-  ( ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  /\  ( v  e.  Q.  /\  ( w  +Q  v
)  e.  ( 1st `  B ) ) )  ->  w  e.  ( 1st `  ( A  +P.  C ) ) )
967, 95rexlimddv 2592 . . 3  |-  ( ( A  <P  B  /\  w  e.  ( 1st `  B ) )  ->  w  e.  ( 1st `  ( A  +P.  C
) ) )
9796ex 114 . 2  |-  ( A 
<P  B  ->  ( w  e.  ( 1st `  B
)  ->  w  e.  ( 1st `  ( A  +P.  C ) ) ) )
9897ssrdv 3153 1  |-  ( A 
<P  B  ->  ( 1st `  B )  C_  ( 1st `  ( A  +P.  C ) ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 103    <-> wb 104    \/ w3o 972    /\ w3a 973    = wceq 1348   E.wex 1485    e. wcel 2141   E.wrex 2449   {crab 2452    C_ wss 3121   <.cop 3586   class class class wbr 3989   ` cfv 5198  (class class class)co 5853   1stc1st 6117   2ndc2nd 6118   Q.cnq 7242    +Q cplq 7244    <Q cltq 7247   P.cnp 7253    +P. cpp 7255    <P cltp 7257
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 609  ax-in2 610  ax-io 704  ax-5 1440  ax-7 1441  ax-gen 1442  ax-ie1 1486  ax-ie2 1487  ax-8 1497  ax-10 1498  ax-11 1499  ax-i12 1500  ax-bndl 1502  ax-4 1503  ax-17 1519  ax-i9 1523  ax-ial 1527  ax-i5r 1528  ax-13 2143  ax-14 2144  ax-ext 2152  ax-coll 4104  ax-sep 4107  ax-nul 4115  ax-pow 4160  ax-pr 4194  ax-un 4418  ax-setind 4521  ax-iinf 4572
This theorem depends on definitions:  df-bi 116  df-dc 830  df-3or 974  df-3an 975  df-tru 1351  df-fal 1354  df-nf 1454  df-sb 1756  df-eu 2022  df-mo 2023  df-clab 2157  df-cleq 2163  df-clel 2166  df-nfc 2301  df-ne 2341  df-ral 2453  df-rex 2454  df-reu 2455  df-rab 2457  df-v 2732  df-sbc 2956  df-csb 3050  df-dif 3123  df-un 3125  df-in 3127  df-ss 3134  df-nul 3415  df-pw 3568  df-sn 3589  df-pr 3590  df-op 3592  df-uni 3797  df-int 3832  df-iun 3875  df-br 3990  df-opab 4051  df-mpt 4052  df-tr 4088  df-eprel 4274  df-id 4278  df-po 4281  df-iso 4282  df-iord 4351  df-on 4353  df-suc 4356  df-iom 4575  df-xp 4617  df-rel 4618  df-cnv 4619  df-co 4620  df-dm 4621  df-rn 4622  df-res 4623  df-ima 4624  df-iota 5160  df-fun 5200  df-fn 5201  df-f 5202  df-f1 5203  df-fo 5204  df-f1o 5205  df-fv 5206  df-ov 5856  df-oprab 5857  df-mpo 5858  df-1st 6119  df-2nd 6120  df-recs 6284  df-irdg 6349  df-1o 6395  df-2o 6396  df-oadd 6399  df-omul 6400  df-er 6513  df-ec 6515  df-qs 6519  df-ni 7266  df-pli 7267  df-mi 7268  df-lti 7269  df-plpq 7306  df-mpq 7307  df-enq 7309  df-nqqs 7310  df-plqqs 7311  df-mqqs 7312  df-1nqqs 7313  df-rq 7314  df-ltnqqs 7315  df-enq0 7386  df-nq0 7387  df-0nq0 7388  df-plq0 7389  df-mq0 7390  df-inp 7428  df-iplp 7430  df-iltp 7432
This theorem is referenced by:  ltexpri  7575
  Copyright terms: Public domain W3C validator