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Theorem cdlemg44 30995
Description: Part of proof of Lemma G of [Crawley] p. 116, fifth line of third paragraph on p. 117: "and hence fg = gf." (Contributed by NM, 3-Jun-2013.)
Hypotheses
Ref Expression
cdlemg44.h  |-  H  =  ( LHyp `  K
)
cdlemg44.t  |-  T  =  ( ( LTrn `  K
) `  W )
cdlemg44.r  |-  R  =  ( ( trL `  K
) `  W )
Assertion
Ref Expression
cdlemg44  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F )  =/=  ( R `  G
) )  ->  ( F  o.  G )  =  ( G  o.  F ) )

Proof of Theorem cdlemg44
Dummy variable  p is distinct from all other variables.
StepHypRef Expression
1 eqid 2285 . . . 4  |-  ( le
`  K )  =  ( le `  K
)
2 eqid 2285 . . . 4  |-  ( Atoms `  K )  =  (
Atoms `  K )
3 cdlemg44.h . . . 4  |-  H  =  ( LHyp `  K
)
41, 2, 3lhpexnle 30268 . . 3  |-  ( ( K  e.  HL  /\  W  e.  H )  ->  E. p  e.  (
Atoms `  K )  -.  p ( le `  K ) W )
543ad2ant1 976 . 2  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F )  =/=  ( R `  G
) )  ->  E. p  e.  ( Atoms `  K )  -.  p ( le `  K ) W )
6 simp11 985 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  ( K  e.  HL  /\  W  e.  H ) )
7 simp12l 1068 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  F  e.  T
)
8 simp12r 1069 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  G  e.  T
)
9 cdlemg44.t . . . . . 6  |-  T  =  ( ( LTrn `  K
) `  W )
103, 9ltrnco 30981 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  F  e.  T  /\  G  e.  T
)  ->  ( F  o.  G )  e.  T
)
116, 7, 8, 10syl3anc 1182 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  ( F  o.  G )  e.  T
)
123, 9ltrnco 30981 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  G  e.  T  /\  F  e.  T
)  ->  ( G  o.  F )  e.  T
)
136, 8, 7, 12syl3anc 1182 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  ( G  o.  F )  e.  T
)
14 3simpc 954 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  ( p  e.  ( Atoms `  K )  /\  -.  p ( le
`  K ) W ) )
15 simp13 987 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  ( R `  F )  =/=  ( R `  G )
)
16 cdlemg44.r . . . . . . 7  |-  R  =  ( ( trL `  K
) `  W )
173, 9, 16, 1, 2cdlemg44b 30994 . . . . . 6  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T  /\  ( p  e.  ( Atoms `  K
)  /\  -.  p
( le `  K
) W ) )  /\  ( R `  F )  =/=  ( R `  G )
)  ->  ( F `  ( G `  p
) )  =  ( G `  ( F `
 p ) ) )
186, 7, 8, 14, 15, 17syl131anc 1195 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  ( F `  ( G `  p ) )  =  ( G `
 ( F `  p ) ) )
19 simp12 986 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  ( F  e.  T  /\  G  e.  T ) )
20 simp2 956 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  p  e.  (
Atoms `  K ) )
211, 2, 3, 9ltrncoval 30407 . . . . . 6  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  p  e.  ( Atoms `  K )
)  ->  ( ( F  o.  G ) `  p )  =  ( F `  ( G `
 p ) ) )
226, 19, 20, 21syl3anc 1182 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  ( ( F  o.  G ) `  p )  =  ( F `  ( G `
 p ) ) )
231, 2, 3, 9ltrncoval 30407 . . . . . 6  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( G  e.  T  /\  F  e.  T )  /\  p  e.  ( Atoms `  K )
)  ->  ( ( G  o.  F ) `  p )  =  ( G `  ( F `
 p ) ) )
246, 8, 7, 20, 23syl121anc 1187 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  ( ( G  o.  F ) `  p )  =  ( G `  ( F `
 p ) ) )
2518, 22, 243eqtr4d 2327 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  ( ( F  o.  G ) `  p )  =  ( ( G  o.  F
) `  p )
)
261, 2, 3, 9cdlemd 30469 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  o.  G )  e.  T  /\  ( G  o.  F )  e.  T )  /\  (
p  e.  ( Atoms `  K )  /\  -.  p ( le `  K ) W )  /\  ( ( F  o.  G ) `  p )  =  ( ( G  o.  F
) `  p )
)  ->  ( F  o.  G )  =  ( G  o.  F ) )
276, 11, 13, 14, 25, 26syl311anc 1196 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F
)  =/=  ( R `
 G ) )  /\  p  e.  (
Atoms `  K )  /\  -.  p ( le `  K ) W )  ->  ( F  o.  G )  =  ( G  o.  F ) )
2827rexlimdv3a 2671 . 2  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F )  =/=  ( R `  G
) )  ->  ( E. p  e.  ( Atoms `  K )  -.  p ( le `  K ) W  -> 
( F  o.  G
)  =  ( G  o.  F ) ) )
295, 28mpd 14 1  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( F  e.  T  /\  G  e.  T )  /\  ( R `  F )  =/=  ( R `  G
) )  ->  ( F  o.  G )  =  ( G  o.  F ) )
Colors of variables: wff set class
Syntax hints:   -. wn 3    -> wi 4    /\ wa 358    /\ w3a 934    = wceq 1625    e. wcel 1686    =/= wne 2448   E.wrex 2546   class class class wbr 4025    o. ccom 4695   ` cfv 5257   lecple 13217   Atomscatm 29526   HLchlt 29613   LHypclh 30246   LTrncltrn 30363   trLctrl 30420
This theorem is referenced by:  cdlemg47  30998  ltrncom  31000
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1535  ax-5 1546  ax-17 1605  ax-9 1637  ax-8 1645  ax-13 1688  ax-14 1690  ax-6 1705  ax-7 1710  ax-11 1717  ax-12 1868  ax-ext 2266  ax-rep 4133  ax-sep 4143  ax-nul 4151  ax-pow 4190  ax-pr 4216  ax-un 4514
This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3or 935  df-3an 936  df-tru 1310  df-ex 1531  df-nf 1534  df-sb 1632  df-eu 2149  df-mo 2150  df-clab 2272  df-cleq 2278  df-clel 2281  df-nfc 2410  df-ne 2450  df-nel 2451  df-ral 2550  df-rex 2551  df-reu 2552  df-rmo 2553  df-rab 2554  df-v 2792  df-sbc 2994  df-csb 3084  df-dif 3157  df-un 3159  df-in 3161  df-ss 3168  df-nul 3458  df-if 3568  df-pw 3629  df-sn 3648  df-pr 3649  df-op 3651  df-uni 3830  df-iun 3909  df-iin 3910  df-br 4026  df-opab 4080  df-mpt 4081  df-id 4311  df-xp 4697  df-rel 4698  df-cnv 4699  df-co 4700  df-dm 4701  df-rn 4702  df-res 4703  df-ima 4704  df-iota 5221  df-fun 5259  df-fn 5260  df-f 5261  df-f1 5262  df-fo 5263  df-f1o 5264  df-fv 5265  df-ov 5863  df-oprab 5864  df-mpt2 5865  df-1st 6124  df-2nd 6125  df-undef 6300  df-riota 6306  df-map 6776  df-poset 14082  df-plt 14094  df-lub 14110  df-glb 14111  df-join 14112  df-meet 14113  df-p0 14147  df-p1 14148  df-lat 14154  df-clat 14216  df-oposet 29439  df-ol 29441  df-oml 29442  df-covers 29529  df-ats 29530  df-atl 29561  df-cvlat 29585  df-hlat 29614  df-llines 29760  df-lplanes 29761  df-lvols 29762  df-lines 29763  df-psubsp 29765  df-pmap 29766  df-padd 30058  df-lhyp 30250  df-laut 30251  df-ldil 30366  df-ltrn 30367  df-trl 30421
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