Set-Theoretic Structures

  • Carlos S. Kubrusly


The purpose of this chapter is to present a very brief review of some basic set-theoretic concepts that will be needed in the sequel. By basic concepts we mean standard notation and terminology, and a few essential results that will be required in later chapters. We assume the reader is familiar with the notion of set and elements (or members, or points) of a set, as well as with the basic set operations. It is convenient to reserve certain symbols for certain sets, especially for the basic number systems. The set of all nonnegative integers will be denoted by ℕ0, the set of all positive integers (i.e., the set of all natural numbers) by ℕ, and the set of all integers by ℤ. The set of all rational numbers will be denoted by ℚ the set of all real numbers (or the real line) by ℝ, and the set of all complex numbers by ℂ.


Equivalence Relation Arbitrary Element Complete Lattice Injective Function Cardinal Number 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • Carlos S. Kubrusly
    • 1
  1. 1.Catholic UniversityRio de JaneiroBrazil

Personalised recommendations