Injective Cogenerator - in General Topology

In General Topology

The Tietze extension theorem can be used to show that an interval is an injective cogenerator in a category of topological spaces subject to separation axioms.

Read more about this topic:  Injective Cogenerator

Famous quotes containing the word general:

    We do not need to minimize the poverty of the ghetto or the suffering inflicted by whites on blacks in order to see that the increasingly dangerous and unpredictable conditions of middle- class life have given rise to similar strategies for survival. Indeed the attraction of black culture for disaffected whites suggests that black culture now speaks to a general condition.
    Christopher Lasch (b. 1932)