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'''Set theory''' is a branch of [[mathematics]] dealing with collections of objects, called [[set]]s.  It revolutionized mathematics and made possible enormous new insights.  The approach of set theory also offers a powerful way to think about life, handle [[anxiety]], escape [[addiction]], and understand the miracles in the [[New Testament]].  Problems, which otherwise seem impossible to overcome, can be more easily solved or managed with a set-theory approach.

'''Set theory''' is a branch of [[mathematics]] dealing with collections of objects, called [[set]]s.  It revolutionized mathematics and made possible enormous new insights.  The approach of set theory also offers a powerful way to think about life, handle [[anxiety]], escape [[addiction]], and understand the miracles in the [[New Testament]].  Problems, which otherwise seem impossible to overcome, can be more easily solved or managed with a set-theory approach.

The devoutly [[Christian]] founder of set theory, [[Georg Cantor]], viewed it as bringing freedom to mathematics, and summarized set theory as follows:<ref>http://thinkexist.com/quotes/georg_cantor/</ref>

The devoutly [[Christian]] founder of set theory, [[Georg Cantor]], viewed it as bringing freedom to mathematics.  He summarized set theory as follows: "A set is a Many that allows itself to be thought of as a One."<ref>http://thinkexist.com/quotes/georg_cantor/</ref> [[David Hilbert]], a leading mathematician in the early 20th century, described set theory as follows:

{{cquote|A set is a Many that allows itself to be thought of as a One.}}

{{cquote|No one shall drive us from the paradise which Cantor has created for us.<ref>https://plus.maths.org/content/glimpse-cantors-paradise</ref>}}

[[John von Neumann]], considered by many to have been the most brilliant man of the 20th century (and a convert to [[Roman Catholic Church|Catholicism]], did his best work in set theory.  He developed a definition of an ordinal number as the set of all smaller ordinal numbers, the definition that is commonly accepted today.<ref>https://www.britannica.com/biography/John-von-Neumann</ref>  That approach helps circumvent issues caused by the transfinite numbers of Georg Cantor.

[[John von Neumann]], considered by many to have been the most brilliant man of the 20th century (and a convert to [[Roman Catholic Church|Catholicism]], did his best work in set theory.  He developed a definition of an ordinal number as the set of all smaller ordinal numbers, the definition that is commonly accepted today.<ref>https://www.britannica.com/biography/John-von-Neumann</ref>  That approach helps circumvent issues caused by the transfinite numbers of Georg Cantor.