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Length of proof is 29.  Level of proof is 8.

---------------- PROOF ----------------

7 [] -T(x,y,x)|x=y.
24 [] T(xa,xb,xb).
25 [] -T(xa,xb,xc)|T(xc,xb,xa).
37 [] T(xa,xb,ext(xa,xb,alpha,gamma)).
38 [] xb!=ext(xa,xb,alpha,gamma).
46 [] -Col(xa,xb,xc)|Col(xb,xc,xa).
47 [] -Col(xa,xb,xc)|Col(xc,xa,xb).
48 [] -Col(xa,xb,xc)|Col(xc,xb,xa).
49 [] -Col(xa,xb,xc)|Col(xb,xa,xc).
50 [] -Col(xa,xb,xc)|Col(xa,xc,xb).
85 [] sameside(xa,xp,xb)| -Col(xa,xp,xb)|T(xa,xp,xb).
87 [] -sameside(xa,xp,xb)|sameside(xb,xp,xa).
88 [] -sameside(xa,xp,xb)| -sameside(xb,xp,xc)|sameside(xa,xp,xc).
94 [] xp=xq|xp=xr| -T(xq,xp,xr)| -Col(xa,xp,xq)|xa=xp|sameside(xa,xp,xq)|sameside(xa,xp,xr).
96 [] xp=xq|xp=xr| -T(xq,xp,xr)| -sameside(xa,xp,xr)|Col(xa,xp,xq).
97 [] xp=xq|xp=xr| -T(xq,xp,xr)|xa!=xp|Col(xa,xp,xq).
119 [] Col(xa,xb,xc)| -T(xa,xb,xc).
120 [] Col(xa,xb,xc)| -T(xb,xc,xa).
131 [] -sameside(xa,xp,xb)|xb!=xp.
132 [] -sameside(xa,xp,xb)|T(xp,xa,xb)|T(xp,xb,xa).
134 [] -T(xp,xb,xa)|xb=xp|xp=xa|sameside(xa,xp,xb).
135 [] p!=q.
136 [] cs!=p.
137 [] Col(p,q,cs).
138 [] Col(p,q,r).
139 [] -Col(p,cs,r).
147 [binary,135.1,96.2] p=x| -T(x,p,q)| -sameside(y,p,q)|Col(y,p,x).
200 [binary,136.1,134.3] -T(cs,x,p)|x=cs|sameside(p,cs,x).
223 [binary,136.1,7.2] -T(cs,p,cs).
275 [binary,137.1,47.1] Col(cs,p,q).
292 [binary,138.1,49.1] Col(q,p,r).
303 [binary,139.1,120.1] -T(cs,r,p).
304 [binary,139.1,119.1] -T(p,cs,r).
310 [binary,139.1,50.2] -Col(p,r,cs).
311 [binary,139.1,49.2] -Col(cs,p,r).
312 [binary,139.1,48.2] -Col(r,cs,p).
314 [binary,139.1,46.2] -Col(r,p,cs).
549 [binary,275.1,85.2] sameside(cs,p,q)|T(cs,p,q).
595 [binary,292.1,85.2] sameside(q,p,r)|T(q,p,r).
719 [binary,303.1,25.2] -T(p,r,cs).
736 [binary,304.1,132.2,unit_del,719] -sameside(cs,p,r).
816 [ur,97,136,38,37,312] r!=cs.
857 [ur,97,816,38,37,310] p!=r.
903 [binary,147.2,25.2] p=x| -sameside(y,p,q)|Col(y,p,x)| -T(q,p,x).
905 [binary,147.3,87.2] p=x| -T(x,p,q)|Col(y,p,x)| -sameside(q,p,y).
1408 [binary,736.1,94.7,unit_del,857,136] p=x| -T(x,p,r)| -Col(cs,p,x)|sameside(cs,p,x).
1409 [binary,736.1,88.3] -sameside(cs,p,x)| -sameside(x,p,r).
4916 [para_from,200.2.2,223.1.3] -T(cs,p,x)| -T(cs,x,p)|sameside(p,cs,x).
4924 [factor,4916.1.2,unit_del,24] sameside(p,cs,p).
4925 [binary,4924.1,131.1] p!=cs.
421679 [binary,1408.4,903.2,unit_del,135,275] -T(q,p,r)|p=x|Col(cs,p,x)| -T(q,p,x).
421687 [factor,421679.1.4,unit_del,857,311] -T(q,p,r).
421743 [binary,421687.1,595.2] sameside(q,p,r).
421933 [hyper,1409,549,421743] T(cs,p,q).
422005 [ur,905,4925,314,421743] -T(cs,p,q).
422006 [binary,422005.1,421933.1] $F.