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Theorem lvolcmp 29782
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 958 . . . 4  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  X  e.  V )
2 simp1 957 . . . . 5  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  K  e.  HL )
3 eqid 2380 . . . . . . 7  |-  ( Base `  K )  =  (
Base `  K )
4 lvolcmp.v . . . . . . 7  |-  V  =  ( LVols `  K )
53, 4lvolbase 29743 . . . . . 6  |-  ( X  e.  V  ->  X  e.  ( Base `  K
) )
653ad2ant2 979 . . . . 5  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  X  e.  ( Base `  K ) )
7 eqid 2380 . . . . . 6  |-  (  <o  `  K )  =  ( 
<o  `  K )
8 eqid 2380 . . . . . 6  |-  ( LPlanes `  K )  =  (
LPlanes `  K )
93, 7, 8, 4islvol4 29739 . . . . 5  |-  ( ( K  e.  HL  /\  X  e.  ( Base `  K ) )  -> 
( X  e.  V  <->  E. z  e.  ( LPlanes `  K ) z ( 
<o  `  K ) X ) )
102, 6, 9syl2anc 643 . . . 4  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  ( X  e.  V  <->  E. z  e.  ( LPlanes `  K ) z ( 
<o  `  K ) X ) )
111, 10mpbid 202 . . 3  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  E. z  e.  (
LPlanes `  K ) z (  <o  `  K ) X )
12 simpr3 965 . . . . . 6  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  ->  X  .<_  Y )
13 hlpos 29531 . . . . . . . . 9  |-  ( K  e.  HL  ->  K  e.  Poset )
14133ad2ant1 978 . . . . . . . 8  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  K  e.  Poset )
1514adantr 452 . . . . . . 7  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  ->  K  e.  Poset )
166adantr 452 . . . . . . 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 962 . . . . . . . 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 29743 . . . . . . . 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 963 . . . . . . . 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 29699 . . . . . . . 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 964 . . . . . . 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 960 . . . . . . . 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 29444 . . . . . . . . . 10  |-  ( ( ( K  e.  HL  /\  z  e.  ( Base `  K )  /\  X  e.  ( Base `  K
) )  /\  z
(  <o  `  K ) X )  ->  z  .<_  X )
2724, 22, 16, 23, 26syl31anc 1187 . . . . . . . . 9  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  -> 
z  .<_  X )
283, 25postr 14330 . . . . . . . . . 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 1186 . . . . . . . . 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 661 . . . . . . . 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 29780 . . . . . . . 8  |-  ( ( ( K  e.  HL  /\  z  e.  ( LPlanes `  K )  /\  Y  e.  V )  /\  z  .<_  Y )  ->  z
(  <o  `  K ) Y )
3224, 20, 17, 30, 31syl31anc 1187 . . . . . . 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 29449 . . . . . . 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 1202 . . . . . 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 202 . . . . 5  |-  ( ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  /\  ( z  e.  (
LPlanes `  K )  /\  z (  <o  `  K
) X  /\  X  .<_  Y ) )  ->  X  =  Y )
36353exp2 1171 . . . 4  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  ( z  e.  (
LPlanes `  K )  -> 
( z (  <o  `  K ) X  -> 
( X  .<_  Y  ->  X  =  Y )
) ) )
3736rexlimdv 2765 . . 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 14328 . . . 4  |-  ( ( K  e.  Poset  /\  X  e.  ( Base `  K
) )  ->  X  .<_  X )
4014, 6, 39syl2anc 643 . . 3  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  X  .<_  X )
41 breq2 4150 . . 3  |-  ( X  =  Y  ->  ( X  .<_  X  <->  X  .<_  Y ) )
4240, 41syl5ibcom 212 . 2  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  ( X  =  Y  ->  X  .<_  Y ) )
4338, 42impbid 184 1  |-  ( ( K  e.  HL  /\  X  e.  V  /\  Y  e.  V )  ->  ( X  .<_  Y  <->  X  =  Y ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    <-> wb 177    /\ wa 359    /\ w3a 936    = wceq 1649    e. wcel 1717   E.wrex 2643   class class class wbr 4146   ` cfv 5387   Basecbs 13389   lecple 13456   Posetcpo 14317    <o ccvr 29428   HLchlt 29516   LPlanesclpl 29657   LVolsclvol 29658
This theorem is referenced by:  lvolnltN  29783  2lplnja  29784
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1552  ax-5 1563  ax-17 1623  ax-9 1661  ax-8 1682  ax-13 1719  ax-14 1721  ax-6 1736  ax-7 1741  ax-11 1753  ax-12 1939  ax-ext 2361  ax-rep 4254  ax-sep 4264  ax-nul 4272  ax-pow 4311  ax-pr 4337  ax-un 4634
This theorem depends on definitions:  df-bi 178  df-or 360  df-an 361  df-3or 937  df-3an 938  df-tru 1325  df-ex 1548  df-nf 1551  df-sb 1656  df-eu 2235  df-mo 2236  df-clab 2367  df-cleq 2373  df-clel 2376  df-nfc 2505  df-ne 2545  df-nel 2546  df-ral 2647  df-rex 2648  df-reu 2649  df-rab 2651  df-v 2894  df-sbc 3098  df-csb 3188  df-dif 3259  df-un 3261  df-in 3263  df-ss 3270  df-nul 3565  df-if 3676  df-pw 3737  df-sn 3756  df-pr 3757  df-op 3759  df-uni 3951  df-iun 4030  df-br 4147  df-opab 4201  df-mpt 4202  df-id 4432  df-xp 4817  df-rel 4818  df-cnv 4819  df-co 4820  df-dm 4821  df-rn 4822  df-res 4823  df-ima 4824  df-iota 5351  df-fun 5389  df-fn 5390  df-f 5391  df-f1 5392  df-fo 5393  df-f1o 5394  df-fv 5395  df-ov 6016  df-oprab 6017  df-mpt2 6018  df-1st 6281  df-2nd 6282  df-undef 6472  df-riota 6478  df-poset 14323  df-plt 14335  df-lub 14351  df-glb 14352  df-join 14353  df-meet 14354  df-p0 14388  df-lat 14395  df-clat 14457  df-oposet 29342  df-ol 29344  df-oml 29345  df-covers 29432  df-ats 29433  df-atl 29464  df-cvlat 29488  df-hlat 29517  df-llines 29663  df-lplanes 29664  df-lvols 29665
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