Andrews-Curtis Link
The Link of 2-spheres in 
obtained by Spinning intertwined arcs. The link consists of a knotted 2-sphere and a Spun Trefoil Knot.
References
Rolfsen, D. Knots and Links. Wilmington, DE: Publish or Perish Press, p. 94, 1976.
- Countable Additivity Probability Axiom
- Countable Set
- Countable Space
- Countably Infinite Set
- Counting Generalized Principle
- Counting Number
- Coupon Collector's Problem
- Covariance
- Covariance Matrix
- Covariant Derivative
- Covariant Tensor
- Covariant Vector
- Cover
- Covering
- Covering Dimension
- Covering System
- Cover Relation
- Coversine
- Coxeter Diagram
- Coxeter-Dynkin Diagram
- Coxeter Graph
- Coxeter Group
- Coxeter Matrix
- Coxeter's Loxodromic Sequence of Tangent Circles
- Coxeter-Todd Lattice