The general branch of topology dealing with continuity, compactness, and connectedness is named after sets and these objects.
The general branch of topology dealing with continuity, compactness, and connectedness is named after sets and these objects. A cusp is a variant of the "singular" type of these objects. If a function maps one of these objects to itself, then that object is called "fixed." These objects' relative distances from a circle are expressed as their namesake power. An open set does not contain any of these objects that are on its (*)  boundary. The second derivative test can often identify stationary instances of these objects, which can be a minimum, maximum, or one of these objects "of inflection." There is exactly one plane through three non-collinear instances of these objects. For 10 points, name this basic unit of Euclidean geometry, an infinite number of which are in a line.
The general branch of topology dealing with continuity, compactness, and connectedness is named after sets and these objects.
point s [accept  point-set  topology]