| − | '''Knot theory''' is the study of the mathematical properties of knots, with the goal of finding so-called ''knot invariants'', properties of knots which remain unchanged under bending of flexing of the rope but change if the knot is tied in a different way. | + | '''Knot theory''' is the study of the [[mathematics|mathematical]] properties of knots, with the goal of finding so-called ''knot invariants'', properties of knots which remain unchanged under bending of flexing of the rope but change if the knot is tied in a different way. |