- completely uniform space
- completely unstable dynamical systems
- complete market
- complete measure
- complete measure
- complete measure space
- complete metric space
- complete metric space
- completeness
- completeness of a system of predicate calculus
- completeness of axioms
- completeness of axiom system
- completeness of locus
- completeness of propositional calculus
- completeness of real number system
- completeness theorem
- complete n-gon
- complete n-side
- complete OA
- complete orthogonal system
- complete-permanent
- complete preradical
- complete presheaf
- complete probabilistic metric space
- complete probability space