Nikod m boundedness theorem　尼科迪姆有界性定理

Nikod m convergence theorem　尼科迪姆收敛定理

Nikod m metric　尼科迪姆度量

• cofinal character
• cofinal extension
• cofinal family of mappings
• cofinality
• cofinally similar sets
• cofinal number
• cofinal object
• cofinal ordinal
• cofinal ordinal numbers
• cofinal product-preserving functor
• cofinal set
• cofinal subset
• cofinal type
• cofine open covering
• cofinite
• cofinite filter
• cofinite module
• cofinite subset
• cofinite topology
• coframe
• coframe field
• cofree module
• cofree object
• cofunction
• cofunctor