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Theorem lvolcmp 34290
Description: If two lattice planes are comparable, they are equal. (Contributed by NM, 12-Jul-2012.)
Hypotheses
Ref Expression
lvolcmp.l  |-  .<_  =  ( le `  K )
lvolcmp.v  |-  V  =  ( LVols `  K )
Assertion
Ref Expression
lvolcmp  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  ( X  .<_  Y  <->  X  =  Y ) )

Proof of Theorem lvolcmp
Dummy variable  z is distinct from all other variables.
StepHypRef Expression
1 simp2 992 . . . 4  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  X  e.  V )
2 simp1 991 . . . . 5  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  K  e.  HL )
3 eqid 2462 . . . . . . 7  |-  ( Base `  K )  =  (
Base `  K )
4 lvolcmp.v . . . . . . 7  |-  V  =  ( LVols `  K )
53, 4lvolbase 34251 . . . . . 6  |-  ( X  e.  V  ->  X  e.  ( Base `  K
) )
653ad2ant2 1013 . . . . 5  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  X  e.  ( Base `  K ) )
7 eqid 2462 . . . . . 6  |-  (  <o  `  K )  =  ( 
<o  `  K )
8 eqid 2462 . . . . . 6  |-  ( LPlanes `  K )  =  (
LPlanes `  K )
93, 7, 8, 4islvol4 34247 . . . . 5  |-  ( ( K  e.  HL  /\  X  e.  ( Base `  K ) )  -> 
( X  e.  V  <->  E. z  e.  ( LPlanes `  K ) z ( 
<o  `  K ) X ) )
102, 6, 9syl2anc 661 . . . 4  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  ( X  e.  V  <->  E. z  e.  ( LPlanes `  K ) z ( 
<o  `  K ) X ) )
111, 10mpbid 210 . . 3  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  E. z  e.  (
LPlanes `  K ) z (  <o  `  K ) X )
12 simpr3 999 . . . . . 6  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  ->  X  .<_  Y )
13 hlpos 34039 . . . . . . . . 9  |-  ( K  e.  HL  ->  K  e.  Poset )
14133ad2ant1 1012 . . . . . . . 8  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  K  e.  Poset )
1514adantr 465 . . . . . . 7  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  ->  K  e.  Poset )
166adantr 465 . . . . . . 7  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  ->  X  e.  ( Base `  K ) )
17 simpl3 996 . . . . . . . 8  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  ->  Y  e.  V )
183, 4lvolbase 34251 . . . . . . . 8  |-  ( Y  e.  V  ->  Y  e.  ( Base `  K
) )
1917, 18syl 16 . . . . . . 7  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  ->  Y  e.  ( Base `  K ) )
20 simpr1 997 . . . . . . . 8  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  -> 
z  e.  ( LPlanes `  K ) )
213, 8lplnbase 34207 . . . . . . . 8  |-  ( z  e.  ( LPlanes `  K
)  ->  z  e.  ( Base `  K )
)
2220, 21syl 16 . . . . . . 7  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  -> 
z  e.  ( Base `  K ) )
23 simpr2 998 . . . . . . 7  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  -> 
z (  <o  `  K
) X )
24 simpl1 994 . . . . . . . 8  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  ->  K  e.  HL )
25 lvolcmp.l . . . . . . . . . . 11  |-  .<_  =  ( le `  K )
263, 25, 7cvrle 33952 . . . . . . . . . 10  |-  ( ( ( K  e.  HL  /\  z  e.  ( Base `  K )  /\  X  e.  ( Base `  K
) )  /\  z
(  <o  `  K ) X )  ->  z  .<_  X )
2724, 22, 16, 23, 26syl31anc 1226 . . . . . . . . 9  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  -> 
z  .<_  X )
283, 25postr 15431 . . . . . . . . . 10  |-  ( ( K  e.  Poset  /\  (
z  e.  ( Base `  K )  /\  X  e.  ( Base `  K
)  /\  Y  e.  ( Base `  K )
) )  ->  (
( z  .<_  X  /\  X  .<_  Y )  -> 
z  .<_  Y ) )
2915, 22, 16, 19, 28syl13anc 1225 . . . . . . . . 9  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  -> 
( ( z  .<_  X  /\  X  .<_  Y )  ->  z  .<_  Y ) )
3027, 12, 29mp2and 679 . . . . . . . 8  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  -> 
z  .<_  Y )
3125, 7, 8, 4lplncvrlvol2 34288 . . . . . . . 8  |-  ( ( ( K  e.  HL  /\  z  e.  ( LPlanes `  K )  /\  Y  e.  V )  /\  z  .<_  Y )  ->  z
(  <o  `  K ) Y )
3224, 20, 17, 30, 31syl31anc 1226 . . . . . . 7  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  -> 
z (  <o  `  K
) Y )
333, 25, 7cvrcmp 33957 . . . . . . 7  |-  ( ( K  e.  Poset  /\  ( X  e.  ( Base `  K )  /\  Y  e.  ( Base `  K
)  /\  z  e.  ( Base `  K )
)  /\  ( z
(  <o  `  K ) X  /\  z (  <o  `  K ) Y ) )  ->  ( X  .<_  Y  <->  X  =  Y
) )
3415, 16, 19, 22, 23, 32, 33syl132anc 1241 . . . . . 6  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  -> 
( X  .<_  Y  <->  X  =  Y ) )
3512, 34mpbid 210 . . . . 5  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  ->  X  =  Y )
36353exp2 1209 . . . 4  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  ( z  e.  (
LPlanes `  K )  -> 
( z (  <o  `  K ) X  -> 
( X  .<_  Y  ->  X  =  Y )
) ) )
3736rexlimdv 2948 . . 3  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  ( E. z  e.  ( LPlanes `  K )
z (  <o  `  K
) X  ->  ( X  .<_  Y  ->  X  =  Y ) ) )
3811, 37mpd 15 . 2  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  ( X  .<_  Y  ->  X  =  Y )
)
393, 25posref 15429 . . . 4  |-  ( ( K  e.  Poset  /\  X  e.  ( Base `  K
) )  ->  X  .<_  X )
4014, 6, 39syl2anc 661 . . 3  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  X  .<_  X )
41 breq2 4446 . . 3  |-  ( X  =  Y  ->  ( X  .<_  X  <->  X  .<_  Y ) )
4240, 41syl5ibcom 220 . 2  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  ( X  =  Y  ->  X  .<_  Y ) )
4338, 42impbid 191 1  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  ( X  .<_  Y  <->  X  =  Y ) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    <-> wb 184    /\ wa 369    /\ w3a 968    = wceq 1374    e. wcel 1762   E.wrex 2810   class class class wbr 4442   ` cfv 5581   Basecbs 14481   lecple 14553   Posetcpo 15418    <o ccvr 33936   HLchlt 34024   LPlanesclpl 34165   LVolsclvol 34166
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 1963  ax-ext 2440  ax-rep 4553  ax-sep 4563  ax-nul 4571  ax-pow 4620  ax-pr 4681  ax-un 6569
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3or 969  df-3an 970  df-tru 1377  df-ex 1592  df-nf 1595  df-sb 1707  df-eu 2274  df-mo 2275  df-clab 2448  df-cleq 2454  df-clel 2457  df-nfc 2612  df-ne 2659  df-ral 2814  df-rex 2815  df-reu 2816  df-rab 2818  df-v 3110  df-sbc 3327  df-csb 3431  df-dif 3474  df-un 3476  df-in 3478  df-ss 3485  df-nul 3781  df-if 3935  df-pw 4007  df-sn 4023  df-pr 4025  df-op 4029  df-uni 4241  df-iun 4322  df-br 4443  df-opab 4501  df-mpt 4502  df-id 4790  df-xp 5000  df-rel 5001  df-cnv 5002  df-co 5003  df-dm 5004  df-rn 5005  df-res 5006  df-ima 5007  df-iota 5544  df-fun 5583  df-fn 5584  df-f 5585  df-f1 5586  df-fo 5587  df-f1o 5588  df-fv 5589  df-riota 6238  df-ov 6280  df-oprab 6281  df-poset 15424  df-plt 15436  df-lub 15452  df-glb 15453  df-join 15454  df-meet 15455  df-p0 15517  df-lat 15524  df-clat 15586  df-oposet 33850  df-ol 33852  df-oml 33853  df-covers 33940  df-ats 33941  df-atl 33972  df-cvlat 33996  df-hlat 34025  df-llines 34171  df-lplanes 34172  df-lvols 34173
This theorem is referenced by:  lvolnltN  34291  2lplnja  34292
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