Sindbad~EG File Manager

Length of proof is 6.  Level of proof is 2.
 
---------------- PROOF ----------------
 
87 [] xa=xp|sameside(xa,xp,xa).
240 [] -sameside(xa1,xb,xa)| -sameside(xc1,xb,xc)| -sameside(xd1,xe,xd)| -sameside(xf1,xe,xf)| -E3(xa1,xb,xc1,xd1,xe,xf1)|congruent(xa,xb,xc,xd,xe,xf).
248 [] -congruent(xa,xb,xc,xd,xe,xf)| -sameside(xa2,xb,xa)| -sameside(xc2,xb,xc)| -sameside(xd2,xe,xd)| -sameside(xf2,xe,xf)| -E(xb,xa2,xe,xd2)| -E(xb,xc2,xe,xf2)|E(xa2,xc2,xd2,xf2).
281 [] -sameside(xa,xp,xb)|xb!=xp.
331 [] sameside(a1,b,a2).
332 [] sameside(c1,b,c2).
333 [] sameside(d1,e,d2).
334 [] sameside(f1,e,f2).
335 [] E3(a1,b,c1,d1,e,f1).
344 [] E(b,a2,e,d2).
345 [] E(b,c2,e,f2).
346 [] -E(a2,c2,d2,f2).
390 [hyper,281,331,87] sameside(a2,b,a2).
473 [hyper,281,332,87] sameside(c2,b,c2).
556 [hyper,281,333,87] sameside(d2,e,d2).
639 [hyper,281,334,87] sameside(f2,e,f2).
685 [hyper,240,331,332,333,334,335] congruent(a2,b,c2,d2,e,f2).
5828 [ur,248,390,473,556,639,344,345,346] -congruent(a2,b,c2,d2,e,f2).
5829 [binary,5828.1,685.1] $F.