wAlex
July-03-08
2:12 PM
A long 4 crossing positive knot is a long trefoil
Pasted from <[link]> 
Before and after the first R3, with some stuff removed, yet problematic:
Compare[GC[Ar[1, 8, +1]],
 {
  GC[Ar[7, 2, +1], Ar[12, 3, +1], Ar[6, 11, +1]],
  GC[Ar[6, 3, +1], Ar[11, 2, +1], Ar[7, 12, +1]]
  }
 ]