Approach Space
In topology, approach spaces are a generalization of metric spaces, based on point-to-set distances, instead of point-to-point distances. They were introduced by Robert Lowen in 1989.
Read more about Approach Space: Definition, Examples, Equivalent Definitions, Categorical Properties
Famous quotes containing the words approach and/or space:
“We have learned the simple truth, as Emerson said, that the only way to have a friend is to be one. We can gain no lasting peace if we approach it with suspicion or mistrust or with fear.”
—Franklin D. Roosevelt (1882–1945)
“The limerick packs laughs anatomical
Into space that is quite economical,
But the good ones I’ve seen
So seldom are clean
And the clean ones so seldom are comical.”
—Anonymous.