Sindbad~EG File Manager

Length of proof is 9.  Level of proof is 4.
 
---------------- PROOF ----------------
 
24 [] T(xa,xb,xb).
27 [] -T(xa,xb,xc)| -T(xb,xa,xc)|xa=xb.
52 [] Col(xa,xb,xa).
86 [] sameside(xa,xp,xb)| -Col(xa,xp,xb)|T(xa,xp,xb).
102 [] xp=xq| -Col(xp,xq,xr)|Col(xq,xp,xr).
103 [] xa=xb|xp=xq| -Col(xp,xq,xa)| -Col(xp,xq,xb)| -Col(xp,xq,xr)|Col(xa,xb,xr).
136 [] -sameside(xa,xp,xb)|xb!=xp.
140 [] a!=b.
141 [] p!=q.
142 [] Col(a,b,c).
143 [] Col(p,q,c).
144 [] Col(a,b,d).
145 [] Col(p,q,d).
146 [] c!=d.
147 [] Col(a,b,e).
148 [] -Col(p,q,e).
312 [ur,27,24,141] -T(q,p,q).
372 [binary,143.1,102.2,unit_del,141] Col(q,p,c).
443 [binary,145.1,102.2,unit_del,141] Col(q,p,d).
464 [hyper,103,143,145,52,unit_del,146,141] Col(c,d,p).
601 [hyper,103,142,144,147,unit_del,146,140] Col(c,d,e).
824 [binary,312.1,86.3,unit_del,52] sameside(q,p,q).
2068 [ur,103,141,146,464,601,148] -Col(c,d,q).
2855 [binary,824.1,136.1] q!=p.
2911 [ur,103,146,2855,372,443,52] Col(c,d,q).
2912 [binary,2911.1,2068.1] $F.