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Theorem isibg1a7 26229
Description: If  Y is between  X and 
Z,  X belongs to the line YZ (For my private use only. Don't use.) (Contributed by FL, 20-May-2016.)
Hypotheses
Ref Expression
isibg1a3a.1  |-  P  =  (PPoints `  G )
isibg1a3a.2  |-  B  =  (btw `  G )
isibg1a3a.3  |-  ( ph  ->  G  e. Ibg )
isibg1a3a.4  |-  ( ph  ->  X  e.  P )
isibg1a3a.5  |-  ( ph  ->  Y  e.  P )
isibg1a3a.6  |-  ( ph  ->  Z  e.  P )
isibg1a3a.7  |-  ( ph  ->  Y  e.  ( X B Z ) )
isibg1a7.1  |-  M  =  ( line `  G
)
Assertion
Ref Expression
isibg1a7  |-  ( ph  ->  X  e.  ( Y M Z ) )

Proof of Theorem isibg1a7
StepHypRef Expression
1 isibg1a3a.1 . . 3  |-  P  =  (PPoints `  G )
2 isibg1a7.1 . . 3  |-  M  =  ( line `  G
)
3 isibg1a3a.3 . . . 4  |-  ( ph  ->  G  e. Ibg )
43isibg1a 26214 . . 3  |-  ( ph  ->  G  e. Ig )
5 isibg1a3a.4 . . 3  |-  ( ph  ->  X  e.  P )
6 isibg1a3a.6 . . 3  |-  ( ph  ->  Z  e.  P )
71, 2, 4, 5, 6lineval2a 26188 . 2  |-  ( ph  ->  X  e.  ( X M Z ) )
8 isibg1a3a.2 . . . 4  |-  B  =  (btw `  G )
9 isibg1a3a.5 . . . 4  |-  ( ph  ->  Y  e.  P )
10 isibg1a3a.7 . . . 4  |-  ( ph  ->  Y  e.  ( X B Z ) )
111, 8, 3, 5, 9, 6, 10, 2isibg1a6 26228 . . 3  |-  ( ph  ->  Y  e.  ( X M Z ) )
121, 8, 3, 5, 9, 6, 10isibg1a5a 26227 . . 3  |-  ( ph  ->  Y  =/=  Z )
131, 2, 4, 5, 6, 11, 12lineval5a 26191 . 2  |-  ( ph  ->  ( X M Z )  =  ( Y M Z ) )
147, 13eleqtrd 2372 1  |-  ( ph  ->  X  e.  ( Y M Z ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1632    e. wcel 1696   ` cfv 5271  (class class class)co 5874  PPointscpoints 26159   linecline 26179  btwcbtw 26209  Ibgcibg 26210
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1536  ax-5 1547  ax-17 1606  ax-9 1644  ax-8 1661  ax-13 1698  ax-14 1700  ax-6 1715  ax-7 1720  ax-11 1727  ax-12 1878  ax-ext 2277  ax-rep 4147  ax-sep 4157  ax-nul 4165  ax-pow 4204  ax-pr 4230  ax-un 4528
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 1532  df-nf 1535  df-sb 1639  df-eu 2160  df-mo 2161  df-clab 2283  df-cleq 2289  df-clel 2292  df-nfc 2421  df-ne 2461  df-nel 2462  df-ral 2561  df-rex 2562  df-reu 2563  df-rab 2565  df-v 2803  df-sbc 3005  df-csb 3095  df-dif 3168  df-un 3170  df-in 3172  df-ss 3179  df-nul 3469  df-if 3579  df-pw 3640  df-sn 3659  df-pr 3660  df-tp 3661  df-op 3662  df-uni 3844  df-iun 3923  df-br 4040  df-opab 4094  df-mpt 4095  df-id 4325  df-xp 4711  df-rel 4712  df-cnv 4713  df-co 4714  df-dm 4715  df-rn 4716  df-res 4717  df-ima 4718  df-iota 5235  df-fun 5273  df-fn 5274  df-f 5275  df-f1 5276  df-fo 5277  df-f1o 5278  df-fv 5279  df-ov 5877  df-oprab 5878  df-mpt2 5879  df-1st 6138  df-2nd 6139  df-riota 6320  df-ig2 26164  df-li 26180  df-col 26194  df-ibg2 26212
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