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the torus knot of type (2,1) is a fake or trivial knot. You can see what happens when we i...
the torus knot of type (2,0) consists of two untied circumpherences. You can see what happ...
How to get a torus knot of type (3,k). Second step: we roll up the cylinder to form a toru...
How to get a torus knot of type (3,k). First step: we take three line segments drawn on a ...
How to prove that the problem of the three houses on the plane has no solution. We should ...
How to prove that the problem of the three houses on the plane has no solution: in the fig...
A solution of the problem of the three houses on the Moebius strip. You can also try to so...
How to prove that the problem of the three houses on the plane has no solution. We should ...
How to prove that the problem of the three houses has no solution on the plane.We should a...
How to prove that the problem of the three houses has no solution on the plane. We should ...
