Editing Upper and lower bounds (section)

== References ==
{{reflist | refs=
<ref name="MacLane-Birkhoff">{{cite book | last1 = Mac Lane| first1 = Saunders | author1-link = Saunders Mac Lane | last2 = Birkhoff| first2 = Garrett | author2-link = Garrett Birkhoff | title = Algebra | url = https://archive.org/details/algebra00lane| url-access = limited| place = Providence, RI | publisher = [[American Mathematical Society]] | page = [https://archive.org/details/algebra00lane/page/n164 145] | year = 1991 | isbn = 0-8218-1646-2 }}</ref>
<!-- <ref name="Davey-Priestley"> {{cite book| author = B. A. Davey and H. A. Priestley| year =2002| title = Introduction to Lattices and Order| edition = 2nd | publisher = Cambridge University Press|  isbn= 0-521-78451-4}} </ref> -->
<ref name=schaefer>{{cite book | last1=Schaefer | first1=Helmut H. | author-link=Helmut H. Schaefer | last2=Wolff | first2=Manfred P. | title=Topological Vector Spaces | publisher=Springer New York Imprint Springer | series=[[Graduate Texts in Mathematics|GTM]] | volume=8 |page=3 | publication-place=New York, NY | year=1999 | isbn=978-1-4612-7155-0 | oclc=840278135 }} <!-- {{sfn | Schaefer | 1999 | p=}} --> </ref>

}}

[[Category:Mathematical terminology]]
[[Category:Order theory]]
[[Category:Real analysis]]

[[de:Schranke (Mathematik)]]
[[pl:Kresy dolny i górny]]