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Terminal notions in set theory

✍ Scribed by Jindřich Zapletal

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
231 KB
Volume
109
Category
Article
ISSN
0168-0072

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✦ Synopsis

In mathematical practice certain formulas (x) are believed to essentially decide all other natural properties of the object x. The purpose of this paper is to exactly quantify such a belief for four formulas (x), namely "x is a Ramsey ultraÿlter", "x is a free Souslin tree", "x is an extendible strong Lusin set" and "x is a good diamond sequence".

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