A net (xa)aA on a set X is said to be an ultranet or universal net if whenever EX, (xa) is either eventually in E or eventually in XE.


Title ultranet
Canonical name Ultranet
Date of creation 2013-03-22 12:54:35
Last modified on 2013-03-22 12:54:35
Owner asteroid (17536)
Last modified by asteroid (17536)
Numerical id 9
Author asteroid (17536)
Entry type Definition
Classification msc 54A20
Synonym universal net
Related topic UltrafilterMathworldPlanetmathPlanetmath
Related topic EveryNetHasAUniversalSubnet