clopen set
Sign in to savesubset that is both open and closed
Connections
interval
Entity
connected space
Entity
discrete space
Entity
International Standard Book Number
Entity
door
Entity
topology
Entity
rational number
Entity
empty set
Entity
OCLC, Inc.
Entity
metric space
Entity
union
Entity
square
Entity
intersection
Entity
topological space
Entity
number line
Entity
blend word
Entity
complement
Entity
open set
Entity
disjoint sets
Entity
infinite set
Entity