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Theorem isside1 26268
 Description: The predicate "Being on the same side of " (For my private use only. Don't use.) (Contributed by FL, 19-Jun-2016.)
Hypotheses
Ref Expression
isside.1 PPoints
isside.2 PLines
isside.3 ss
isside.4 Ibg
isside.5
isside.7
isside1.8
isside1.9
Assertion
Ref Expression
isside1

Proof of Theorem isside1
Dummy variables are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 isside.1 . . . 4 PPoints
2 isside.2 . . . 4 PLines
3 isside.3 . . . 4 ss
4 isside.4 . . . 4 Ibg
5 isside.5 . . . 4
6 isside.7 . . . 4
71, 2, 3, 4, 5, 6isside0 26267 . . 3
87breqd 4050 . 2
9 isside1.8 . . 3
10 isside1.9 . . 3
11 simpl 443 . . . . . 6
1211eleq1d 2362 . . . . 5
13 simpr 447 . . . . . 6
1413eleq1d 2362 . . . . 5
15 oveq12 5883 . . . . . . 7
1615ineq1d 3382 . . . . . 6
1716eqeq1d 2304 . . . . 5
1812, 14, 173anbi123d 1252 . . . 4
19 eqid 2296 . . . 4
2018, 19brabga 4295 . . 3
219, 10, 20syl2anc 642 . 2
228, 21bitrd 244 1
 Colors of variables: wff set class Syntax hints:   wi 4   wb 176   wa 358   w3a 934   wceq 1632   wcel 1696   cdif 3162   cin 3164  c0 3468   class class class wbr 4039  copab 4092  cfv 5271  (class class class)co 5874  PPointscpoints 26159  PLinescplines 26161  Ibgcibg 26210  cseg 26233  sscsas 26265 This theorem is referenced by:  isside  26269  pdiveql  26271 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-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-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-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-sside 26266
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