Page history
March 30, 2025
April 15, 2022
September 2, 2019
May 30, 2018
→The Empty Set: -> lowercase
m→History of set theory: + accents, wiklinks
m+9
David Hilbert, a leading mathematician in the early 20th century, said "No one shall drive us from the paradise which Cantor has created for us" in set theory.
+247
Problems, which otherwise seem impossible to overcome, can be more easily solved or managed with a set-theory approach.
+121
[John von Neumann]] developed a definition of an ordinal number as the set of all smaller ordinal numbers, the definition that is commonly accepted today.
+482
May 8, 2018
The devoutly Christian founder of set theory, Georg Cantor, viewed it as bringing freedom to mathematics, and summarized set theory as follows
+82
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.
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June 21, 2015
April 24, 2015
July 20, 2014
cite as a "See also" to a Forum explaining the status of set theory in mathematics and philosophy today
+185
→History of set theory: sp
m+1
An initial insight of set theory, against intense opposition by established mathematicians, was that some infinities are larger than others. Previously it was thought that infinity had only one size.
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latexfy, improve
+119
link to our article on Sets
+17
The mathematician Giuseppe Peano created the symbol ∈ in 1889 to mean "is an element of," from the Greek epsilon that is the first letter of εἰμί, meaning "I am."
+253