👉 In mathematics, a counterarch is a type of knot or link in the mathematical field known as topology. A counterarch is defined by a sequence of knots or links that are connected at their ends and have no common endpoints.
Counterarchs can be classified into two main types:
1.
Simple counterarchs
: These are simple knots or links that can be constructed from simpler knots or links. For example, the icosahedral knot, which is made up of four icosahedra