Sindbad~EG File Manager

REABCD
ANRRDAB+RRABC+RRBCD+RRCDA+CRACBD defn:rectangle
RRDAB
RRABC
RRCDA
CRACBD
NCDAB  lemma:rightangleNC
NCABC  lemma:rightangleNC
NCCDA  lemma:rightangleNC
ANBEAMC+BEBMD  defn:cross
BEAMC
BEBMD
MEABCD  assumption
 ANNEAB+NECD+COABP+COCDP  defn:meet
 COABP
 COCDP
 EQAP  assumption
  COCDA  cn:equalitysub
  NCCDA
 NEAP reductio
 EQDP assumption
  COABD cn:equalitysub
  CODAB lemma:collinearorder
  NCDAB 
 NEDP reductio
 RRDAB
 RRCDA
 RRBAD  lemma:8.2
 COBAP  lemma:collinearorder
 NEPA  lemma:inequalitysymmetric
 RRPAD  lemma:collinearright
 NEPD  lemma:inequalitysymmetric
 RRPDA  lemma:collinearright
 RRADP  lemma:8.2
 NORRPAD  lemma:8.7
NOMEABCD reductio
NEAB  lemma:NCdistinct
NECD lemma:NCdistinct
NEDC  lemma:NCdistinct
EQAA  cn:equalityreflexive
COABA  defn:collinear
EQBB  cn:equalityreflexive
COABB defn:collinear
EQCC  cn:equalityreflexive
COCDC defn:collinear
EQDD cn:equalityreflexive
COCDD defn:collinear
BEAMC
BEDMB  axiom:betweennesssymmetry
ANNEAB+NECD+COABA+COABB+NEAB+COCDD+COCDC+NEDC+NOMEABCD+BEAMC+BEDMB
PRABCD   defn:parallel
MEADBC  assumption
 ANNEAD+NEBC+COADP+COBCP  defn:meet
 COADP
 COBCP
 EQAP  assumption
  COBCA  cn:equalitysub
  COABC  lemma:collinearorder
  NCABC
 NEAP reductio
 EQBP assumption
  COADB cn:equalitysub
  CODAB lemma:collinearorder
  NCDAB
 NEBP reductio
 RRDAB
 RRABC
 NEPA lemma:inequalitysymmetric
 CODAP  lemma:collinearorder
 RRPAB  lemma:collinearright
 RRCBA  lemma:8.2
 COCBP  lemma:collinearorder
 NEPB  lemma:inequalitysymmetric
 RRPBA  lemma:collinearright
 RRBAP  lemma:8.2
 NORRPBA lemma:8.7
NOMEADBC reductio
NEAD  lemma:NCdistinct
NEBC lemma:NCdistinct
EQDD cn:equalityreflexive
COADA  defn:collinear
COADD defn:collinear
COBCB defn:collinear
COBCC defn:collinear
NEAD
NEBC
NOMEADBC
BEAMC
PRADBC  defn:parallel
PGABCD  defn:parallelogram