borel set in a sentence
Examples
- The Borel sets in the statement of the theorem also refers to the ?-algebra generated by the " open " sets.
- For subsets of Polish spaces, Borel sets can be characterized as those sets which are the ranges of continuous injective maps defined on Polish spaces.
- It can be proved that for every Borel set contained in, and for every, there exist a closed set and an open set such that
- The code for a lightface Borel set " A " can be used to inductively define a tree whose nodes are labeled by codes.
- For example, it can be shown that an inverse image f ^ {-1 } [ 0 ] is a non-Borel set.
- Alternatively, the number of points of " N " located in some Borel set " B " is often written as:
- The left Haar measure satisfies the inner regularity condition for all ?-finite Borel sets, but may not be inner regular for " all"
- For instance, a "'real-valued measurable function "'is a function for which the preimage of each Borel set is measurable.
- Given a countably additive measure ? on " X ", a measurable set is one that differs from a Borel set by a null set.
- Unfortunately, without the axiom of choice, it is not clear that the "-Borel sets " are " closed under wellordered union.