- complemented lattice
- complemented lattice
- complemented lattice
- complemented modular lattice
- complemented module
- complemented ring
- complement graph
- complement lattice
- complement of a great circular arc
- complement of an arc
- complement (of an element)
- complement of a submodule
- complement relation
- completable formula
- complete
- complete accumulation point
- complete algebra on a complete commutative semiring
- complete analytic function
- complete balanced Howell rotation
- complete Banach-Finsler manifold
- complete binary relation
- complete block design
- complete block system
- complete Boolean algebra
- complete class of decision function