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AOABCDEF
AODEFABC       assumption
 AOABCABC       lemma:angleordertransitive
 ANBEGHJ+RABAG+RABCJ+EAABCABH defn:anglelessthan
 BEGHJ
 RABAG
 RABCJ
 EAABCABH
 ANRABAU+RABCV+RABAu+RABHv+EEBUBu+EEBVBv+EEUVuv+NCABC defn:equalangles
 RABAU
 RABCV
 RABAu
 RABHv
 EEBUBu
 EEBVBv
 EEUVuv
 NCABC
 EQAB   assumption
  COABC  defn:collinear
 NEAB  reductio
 EQUu    lemma:layoffunique
 EEUVUv  cn:equalitysub
 COBAG   lemma:rayimpliescollinear
 NEGH   lemma:betweennotequal
 NEHG   lemma:inequalitysymmetric
 ANBEHGP+EEGPHG  lemma:extension
 COBAJ  assumption
  COBCJ  lemma:rayimpliescollinear
  COJBA  lemma:collinearorder
  COJBC  lemma:collinearorder
  NEBJ   lemma:raystrict
  NEJB   lemma:inequalitysymmetric
  COBAC  lemma:collinear4
  COABC  lemma:collinearorder
 NCBAJ  reductio
 COBUH   assumption
  COBAU  lemma:rayimpliescollinear
  COUBA lemma:collinearorder
  COUBH  lemma:collinearorder
  NEBU   lemma:raystrict
  NEUB   lemma:inequalitysymmetric
  COBAH  lemma:collinear4
  COBAG  
  COABG  lemma:collinearorder
  COABH  lemma:collinearorder
  COBGH  lemma:collinear4
  COGHB  lemma:collinearorder
  COGHJ  defn:collinear
  NEGH   lemma:betweennotequal
  COHBJ  lemma:collinear4
  COHBA  lemma:collinearorder
  NEHB  assumption
   COBJA  lemma:collinear4
   COBAJ  lemma:collinearorder
  EQHB  reductio
  BEGBJ  cn:equalitysub
  COGBJ  defn:collinear
  COBGJ  lemma:collinearorder
  COBGA  lemma:collinearorder
  NEBG   lemma:raystrict
  COGJA  lemma:collinear4
  COGJB lemma:collinearorder
  NEGJ  lemma:betweennotequal
  COJAB lemma:collinear4
  COBAJ  lemma:collinearorder
  NCBAJ
 NCBUH reductio
 RABAU
 RABAG
 RABGU  lemma:ray3
 COBGU  lemma:rayimpliescollinear
 COBUG  lemma:collinearorder
 BEHGP
 BEJHG   axiom:betweennesssymmetry
 BEJGP   lemma:3.7a
 NCBUH
 COBUJ  assumption
  COBCJ  lemma:rayimpliescollinear
  COBJC  lemma:collinearorder
  COBAU  lemma:rayimpliescollinear
  COUBA  lemma:collinearorder
  COUBJ  lemma:collinearorder
  NEBU  lemma:raystrict
  NEUB   lemma:inequalitysymmetric
  COBAJ  lemma:collinear4
  COJBC  lemma:collinearorder
  COJBA  lemma:collinearorder
  NEBJ   lemma:raystrict
  NEJB   lemma:inequalitysymmetric
  COBCA  lemma:collinear4
  COABC  lemma:collinearorder
 NCBUJ   reductio
 SSJHBU  defn:sameside
 SSHJBU  lemma:samesidesymmetric
 RABJV   lemma:ray3
 EQBB    cn:equalityreflexive
 COBBU   defn:collinear
 SSHVBU  lemma:sameside2
 SSVHBU  lemma:samesidesymmetric
 SSVvBU  lemma:sameside2
 NEBU    lemma:raystrict
 EEVBvB  lemma:congruenceflip
 EEVUvU  lemma:congruenceflip  
 EQVv    proposition:07
 RABHV   cn:equalitysub
 COBHV   lemma:rayimpliescollinear
 COBJV   lemma:rayimpliescollinear
 COVBJ   lemma:collinearorder
 COVBH   lemma:collinearorder
 NEBV    lemma:raystrict
 NEVB    lemma:inequalitysymmetric
 COBJH   lemma:collinear4
 COGHJ   defn:collinear
 COHJB   lemma:collinearorder
 COHJG   lemma:collinearorder
 NEJH    lemma:betweennotequal
 NEHJ    lemma:inequalitysymmetric 
 COJBG   lemma:collinear4
 COBCJ   lemma:rayimpliescollinear
 COJBC   lemma:collinearorder
 NEBJ    lemma:raystrict
 NEJB    lemma:inequalitysymmetric
 COBGC   lemma:collinear4
 COGBC   lemma:collinearorder
 COBAG   lemma:rayimpliescollinear
 COGBA   lemma:collinearorder
 NEBG    lemma:raystrict
 NEGB    lemma:inequalitysymmetric
 COBCA   lemma:collinear4
 COABC   lemma:collinearorder
 NCABC
NOAODEFABC  reductio