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Theorem lhpexle2lem 34680
Description: Lemma for lhpexle2 34681. (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 994 . . . 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 34679 . . . 4  |-  ( ( K  e.  HL  /\  W  e.  H )  ->  E. p  e.  A  ( p  .<_  W  /\  p  =/=  X ) )
61, 5syl 16 . . 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 1019 . . . . . 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 1020 . . . . . 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 992 . . . . . . 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 2755 . . . . . 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 1171 . . . . 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 1193 . . . 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 2930 . . 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 15 . 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 1042 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  K  e.  HL )
16 simpl2l 1044 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  X  e.  A )
17 simpl3l 1046 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  Y  e.  A )
18 simpr 461 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( X  e.  A  /\  X  .<_  W )  /\  ( Y  e.  A  /\  Y  .<_  W ) )  /\  X  =/= 
Y )  ->  X  =/=  Y )
19 eqid 2460 . . . . 5  |-  ( join `  K )  =  (
join `  K )
202, 19, 3hlsupr 34057 . . . 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 1226 . . 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 2460 . . . . . . . 8  |-  ( Base `  K )  =  (
Base `  K )
23 simpl1l 1042 . . . . . . . . 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 34035 . . . . . . . . 9  |-  ( K  e.  HL  ->  K  e.  Lat )
2523, 24syl 16 . . . . . . . 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 762 . . . . . . . . 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 33961 . . . . . . . . 9  |-  ( p  e.  A  ->  p  e.  ( Base `  K
) )
2826, 27syl 16 . . . . . . . 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 1044 . . . . . . . . 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 1046 . . . . . . . . 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 34038 . . . . . . . . 9  |-  ( ( K  e.  HL  /\  X  e.  A  /\  Y  e.  A )  ->  ( X ( join `  K ) Y )  e.  ( Base `  K
) )
3223, 29, 30, 31syl3anc 1223 . . . . . . . 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 1043 . . . . . . . . 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 34669 . . . . . . . . 9  |-  ( W  e.  H  ->  W  e.  ( Base `  K
) )
3533, 34syl 16 . . . . . . . 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 1041 . . . . . . . 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 1045 . . . . . . . . 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 1047 . . . . . . . . 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 33961 . . . . . . . . . . 11  |-  ( X  e.  A  ->  X  e.  ( Base `  K
) )
4029, 39syl 16 . . . . . . . . . 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 33961 . . . . . . . . . . 11  |-  ( Y  e.  A  ->  Y  e.  ( Base `  K
) )
4230, 41syl 16 . . . . . . . . . 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 15538 . . . . . . . . . 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 1225 . . . . . . . . 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 914 . . . . . . . 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 15534 . . . . . . 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 1039 . . . . . . 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 1040 . . . . . . 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 1171 . . . . . 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 613 . . . . 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 432 . . . 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 2931 . . 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 15 . 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 2778 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 setvar class
Syntax hints:    -> wi 4    <-> wb 184    /\ wa 369    /\ w3a 968    = wceq 1374    e. wcel 1762    =/= wne 2655   E.wrex 2808   class class class wbr 4440   ` cfv 5579  (class class class)co 6275   Basecbs 14479   lecple 14551   joincjn 15420   Latclat 15521   Atomscatm 33935   HLchlt 34022   LHypclh 34655
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1596  ax-4 1607  ax-5 1675  ax-6 1714  ax-7 1734  ax-8 1764  ax-9 1766  ax-10 1781  ax-11 1786  ax-12 1798  ax-13 1961  ax-ext 2438  ax-rep 4551  ax-sep 4561  ax-nul 4569  ax-pow 4618  ax-pr 4679  ax-un 6567
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 970  df-tru 1377  df-ex 1592  df-nf 1595  df-sb 1707  df-eu 2272  df-mo 2273  df-clab 2446  df-cleq 2452  df-clel 2455  df-nfc 2610  df-ne 2657  df-ral 2812  df-rex 2813  df-reu 2814  df-rab 2816  df-v 3108  df-sbc 3325  df-csb 3429  df-dif 3472  df-un 3474  df-in 3476  df-ss 3483  df-nul 3779  df-if 3933  df-pw 4005  df-sn 4021  df-pr 4023  df-op 4027  df-uni 4239  df-iun 4320  df-br 4441  df-opab 4499  df-mpt 4500  df-id 4788  df-xp 4998  df-rel 4999  df-cnv 5000  df-co 5001  df-dm 5002  df-rn 5003  df-res 5004  df-ima 5005  df-iota 5542  df-fun 5581  df-fn 5582  df-f 5583  df-f1 5584  df-fo 5585  df-f1o 5586  df-fv 5587  df-riota 6236  df-ov 6278  df-oprab 6279  df-poset 15422  df-plt 15434  df-lub 15450  df-glb 15451  df-join 15452  df-meet 15453  df-p0 15515  df-p1 15516  df-lat 15522  df-clat 15584  df-oposet 33848  df-ol 33850  df-oml 33851  df-covers 33938  df-ats 33939  df-atl 33970  df-cvlat 33994  df-hlat 34023  df-lhyp 34659
This theorem is referenced by:  lhpexle2  34681
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