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Theorem lhpexle2lem 30198
Description: Lemma for lhpexle2 30199. (Contributed by NM, 19-Jun-2013.)
Hypotheses
Ref Expression
lhpex1.l  |-  .<_  =  ( le `  K )
lhpex1.a  |-  A  =  ( Atoms `  K )
lhpex1.h  |-  H  =  ( LHyp `  K
)
Assertion
Ref Expression
lhpexle2lem  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y ) )
Distinct variable groups:    .<_ , p    A, p    H, p    K, p    W, p    X, p    Y, p

Proof of Theorem lhpexle2lem
StepHypRef Expression
1 simpl1 958 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y )  ->  ( K  e.  HL  /\  W  e.  H ) )
2 lhpex1.l . . . . 5  |-  .<_  =  ( le `  K )
3 lhpex1.a . . . . 5  |-  A  =  ( Atoms `  K )
4 lhpex1.h . . . . 5  |-  H  =  ( LHyp `  K
)
52, 3, 4lhpexle1 30197 . . . 4  |-  ( ( K  e.  HL  /\  W  e.  H )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/=  X ) )
61, 5syl 15 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/= 
X ) )
7 simp3l 983 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y  /\  ( p 
.<_  W  /\  p  =/= 
X ) )  ->  p  .<_  W )
8 simp3r 984 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y  /\  ( p 
.<_  W  /\  p  =/= 
X ) )  ->  p  =/=  X )
9 simp2 956 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y  /\  ( p 
.<_  W  /\  p  =/= 
X ) )  ->  X  =  Y )
108, 9neeqtrd 2468 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y  /\  ( p 
.<_  W  /\  p  =/= 
X ) )  ->  p  =/=  Y )
117, 8, 103jca 1132 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y  /\  ( p 
.<_  W  /\  p  =/= 
X ) )  -> 
( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y ) )
12113expia 1153 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y )  ->  (
( p  .<_  W  /\  p  =/=  X )  -> 
( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y ) ) )
1312reximdv 2654 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y )  ->  ( E. p  e.  A  ( p  .<_  W  /\  p  =/=  X )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y ) ) )
146, 13mpd 14 . 2  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =  Y )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/= 
X  /\  p  =/=  Y ) )
15 simpl1l 1006 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  K  e.  HL )
16 simpl2l 1008 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  X  e.  A )
17 simpl3l 1010 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  Y  e.  A )
18 simpr 447 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  X  =/=  Y )
19 eqid 2283 . . . . 5  |-  ( join `  K )  =  (
join `  K )
202, 19, 3hlsupr 29575 . . . 4  |-  ( ( ( K  e.  HL  /\  X  e.  A  /\  Y  e.  A )  /\  X  =/=  Y
)  ->  E. p  e.  A  ( p  =/=  X  /\  p  =/= 
Y  /\  p  .<_  ( X ( join `  K
) Y ) ) )
2115, 16, 17, 18, 20syl31anc 1185 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  E. p  e.  A  ( p  =/=  X  /\  p  =/= 
Y  /\  p  .<_  ( X ( join `  K
) Y ) ) )
22 eqid 2283 . . . . . . . 8  |-  ( Base `  K )  =  (
Base `  K )
23 simpl1l 1006 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  K  e.  HL )
24 hllat 29553 . . . . . . . . 9  |-  ( K  e.  HL  ->  K  e.  Lat )
2523, 24syl 15 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  K  e.  Lat )
26 simprlr 739 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  p  e.  A )
2722, 3atbase 29479 . . . . . . . . 9  |-  ( p  e.  A  ->  p  e.  ( Base `  K
) )
2826, 27syl 15 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  p  e.  ( Base `  K
) )
29 simpl2l 1008 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  X  e.  A )
30 simpl3l 1010 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  Y  e.  A )
3122, 19, 3hlatjcl 29556 . . . . . . . . 9  |-  ( ( K  e.  HL  /\  X  e.  A  /\  Y  e.  A )  ->  ( X ( join `  K ) Y )  e.  ( Base `  K
) )
3223, 29, 30, 31syl3anc 1182 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  ( X ( join `  K
) Y )  e.  ( Base `  K
) )
33 simpl1r 1007 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  W  e.  H )
3422, 4lhpbase 30187 . . . . . . . . 9  |-  ( W  e.  H  ->  W  e.  ( Base `  K
) )
3533, 34syl 15 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  W  e.  ( Base `  K
) )
36 simprr3 1005 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  p  .<_  ( X ( join `  K ) Y ) )
37 simpl2r 1009 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  X  .<_  W )
38 simpl3r 1011 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  Y  .<_  W )
3922, 3atbase 29479 . . . . . . . . . . 11  |-  ( X  e.  A  ->  X  e.  ( Base `  K
) )
4029, 39syl 15 . . . . . . . . . 10  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  X  e.  ( Base `  K
) )
4122, 3atbase 29479 . . . . . . . . . . 11  |-  ( Y  e.  A  ->  Y  e.  ( Base `  K
) )
4230, 41syl 15 . . . . . . . . . 10  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  Y  e.  ( Base `  K
) )
4322, 2, 19latjle12 14168 . . . . . . . . . 10  |-  ( ( K  e.  Lat  /\  ( X  e.  ( Base `  K )  /\  Y  e.  ( Base `  K )  /\  W  e.  ( Base `  K
) ) )  -> 
( ( X  .<_  W  /\  Y  .<_  W )  <-> 
( X ( join `  K ) Y ) 
.<_  W ) )
4425, 40, 42, 35, 43syl13anc 1184 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  (
( X  .<_  W  /\  Y  .<_  W )  <->  ( X
( join `  K ) Y )  .<_  W ) )
4537, 38, 44mpbi2and 887 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  ( X ( join `  K
) Y )  .<_  W )
4622, 2, 25, 28, 32, 35, 36, 45lattrd 14164 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  p  .<_  W )
47 simprr1 1003 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  p  =/=  X )
48 simprr2 1004 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  p  =/=  Y )
4946, 47, 483jca 1132 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  ( ( X  =/=  Y  /\  p  e.  A )  /\  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) ) ) )  ->  (
p  .<_  W  /\  p  =/=  X  /\  p  =/= 
Y ) )
5049exp44 596 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  -> 
( X  =/=  Y  ->  ( p  e.  A  ->  ( ( p  =/= 
X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) )  ->  ( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y
) ) ) ) )
5150imp31 421 . . . 4  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  /\  p  e.  A )  ->  (
( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) )  ->  ( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y
) ) )
5251reximdva 2655 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  ( E. p  e.  A  ( p  =/=  X  /\  p  =/=  Y  /\  p  .<_  ( X ( join `  K
) Y ) )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y ) ) )
5321, 52mpd 14 . 2  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/= 
X  /\  p  =/=  Y ) )
5414, 53pm2.61dane 2524 1  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/=  X  /\  p  =/=  Y ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    <-> wb 176    /\ wa 358    /\ w3a 934    = wceq 1623    e. wcel 1684    =/= wne 2446   E.wrex 2544   class class class wbr 4023   ` cfv 5255  (class class class)co 5858   Basecbs 13148   lecple 13215   joincjn 14078   Latclat 14151   Atomscatm 29453   HLchlt 29540   LHypclh 30173
This theorem is referenced by:  lhpexle2  30199
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1533  ax-5 1544  ax-17 1603  ax-9 1635  ax-8 1643  ax-13 1686  ax-14 1688  ax-6 1703  ax-7 1708  ax-11 1715  ax-12 1866  ax-ext 2264  ax-rep 4131  ax-sep 4141  ax-nul 4149  ax-pow 4188  ax-pr 4214  ax-un 4512
This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3an 936  df-tru 1310  df-ex 1529  df-nf 1532  df-sb 1630  df-eu 2147  df-mo 2148  df-clab 2270  df-cleq 2276  df-clel 2279  df-nfc 2408  df-ne 2448  df-nel 2449  df-ral 2548  df-rex 2549  df-reu 2550  df-rab 2552  df-v 2790  df-sbc 2992  df-csb 3082  df-dif 3155  df-un 3157  df-in 3159  df-ss 3166  df-nul 3456  df-if 3566  df-pw 3627  df-sn 3646  df-pr 3647  df-op 3649  df-uni 3828  df-iun 3907  df-br 4024  df-opab 4078  df-mpt 4079  df-id 4309  df-xp 4695  df-rel 4696  df-cnv 4697  df-co 4698  df-dm 4699  df-rn 4700  df-res 4701  df-ima 4702  df-iota 5219  df-fun 5257  df-fn 5258  df-f 5259  df-f1 5260  df-fo 5261  df-f1o 5262  df-fv 5263  df-ov 5861  df-oprab 5862  df-mpt2 5863  df-1st 6122  df-2nd 6123  df-undef 6298  df-riota 6304  df-poset 14080  df-plt 14092  df-lub 14108  df-glb 14109  df-join 14110  df-meet 14111  df-p0 14145  df-p1 14146  df-lat 14152  df-clat 14214  df-oposet 29366  df-ol 29368  df-oml 29369  df-covers 29456  df-ats 29457  df-atl 29488  df-cvlat 29512  df-hlat 29541  df-lhyp 30177
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