Blogs about: Naive Set Theory
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ZFC and ETCS: Elementary Theory of the Category of Sets
This is a post on “foundations of mathematics” (eek!). I was motivated to write it while I’ve been struggling to understand better certain applications of ultrafilters — namely… more →
Todd and Vishal's blog
ZFC and ETCS: Elementary Theory of the Category of Sets
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Todd Trimble wrote 1 year ago: This is a post on “foundations of mathematics” (eek!). I was motivated to write it while … more →
Rational And Irrational Numbers
range wrote 1 year ago: Rational Numbers In mathematics, a rational number is a number which can be expressed as a ratio of … more →
Nai
range wrote 1 year ago: I used this partially to write my post. I also used my class notes. … more →
Section 5 - Complements and Powers
Vishal Lama wrote 2 years ago: The difference between sets and , also known as the relative complement of in , is the set defined b … more →
Section 4 - Unions and Intersections
Vishal Lama wrote 2 years ago: We are now ready to discuss a couple of familiar set theoretic operations: unions and intersections. … more →
Section 3 - Unordered Pairs
Vishal Lama wrote 2 years ago: After postulating a couple of important axioms in the previous two sections, we now arrive at a coup … more →
Section 2 - The Axiom of Specification
Vishal Lama wrote 2 years ago: The axiom of extension (discussed in Section 1) is unique in the sense that it postulates the existe … more →
Section 1 - The Axiom of Extension
Vishal Lama wrote 2 years ago: We encounter sets, or if we prefer, collections of objects, everyday in our lives. A herd of cattle, … more →
Naive Set Theory (Paul Halmos)
Vishal Lama wrote 2 years ago: I have just started reading Paul R. Halmos’ classic text Naive Set Theory, and I intend to bl … more →
