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Web Results

en.wikipedia.org/wiki/Directed_set

In mathematics, a

ncatlab.org/nlab/show/direction

Jun 22, 2014

encyclopedia2.thefreedictionary.com/Upward-directed set

A partially ordered

math.stackexchange.com/questions/519576/supremum-of-directed-set-is-contained-or-not

Oct 8, 2013

www.cs.cornell.edu/Courses/cs6110/2014sp/Handouts/Markowsky.pdf

sharpens the known result ([,8], [,181) that in any chain-complete poset, every
directed set has a sup. Often a property holds for every

www.ams.org/tran/1985-290-02/S0002-9947-1985-0792822-9/S0002-9947-1985-0792822-9.pdf

fm.mizar.org/1997-6/pdf6-1/waybel_0.pdf

en.wikiversity.org/wiki/Topology/Lesson_5

May 29, 2015

www.math.wichita.edu/~pparker/classes/handout/netfilt.pdf

Proposition 5 A filter U is maximal if and only if every set A that inter- sects every
... Definition 1 A

www.jstor.org/stable/2000309

More Info

mathworld.wolfram.com

planetmath.org

Aug 1, 2002

thales.doa.fmph.uniba.sk

Apr 22, 2009