We discuss the connection between transitivity and quasitransitivity, and further discuss the connection between transitivity in equivalence relation and quasitransitivity in similarity relation.

• 进一步讨论传递性和拟传递性的联系,并以泛系形影关系为基础讨论了等价关系下的传递性和相似关系下的拟传递性之间相互联系、相互转化的关系。