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         Number System:     more books (108)
  1. Contemporary's Number Power: Real World Approach to Math : Word Problems (The number power series) by Kenneth Tamarkin, 2000-06
  2. Mathematical Thinking at Grade 5: Introduction & Landmarks in the Number System (Investigations in Number, Data, and Space Series) by Marlene Kliman, Cornelia Tierney, et all 1997-05
  3. Building A System Of Tens: Casebook: Numbers and Operations (Developing Mathematical Ideas) by Deborah Schifter, Virginia Bastable, et all 2000-12-30
  4. Number Theory: Volume I: Tools and Diophantine Equations (Graduate Texts in Mathematics) by Henri Cohen, 2010-11-02
  5. Fundamentals of Mathematics, Vol. 1: Foundations of Mathematics: The Real Number System and Algebra (v. 1)
  6. Complex Numbers from A to ...Z by Titu Andreescu, Dorin Andrica, 2005-10-03
  7. A Linear Systems Primer by Panos J. Antsaklis, Anthony N. Michel, 2007-09-25
  8. Introduction to the Numerical Modeling of Groundwater and Geothermal Systems: Fundamentals of Mass, Energy and Solute Transport in Poroelastic Rocks (Multiphysics Modeling) by Jochen Bundschuh, Mario César Suárez A., 2010-07-05
  9. Numbers: A Very Short Introduction (Very Short Introductions) by Peter M. Higgins, 2010-11-01
  10. Number Words and Number Symbols: A Cultural History of Numbers by Karl Menninger, 1992-05-05
  11. The Book of Numbers by John H. Conway, Richard Guy, 1995-03-16
  12. The ONE PAGE Nashville Number System/Fretboard Chart/Music Theory Guide by Ducks Deluxe, 2008
  13. Residue Number Systems: Theory and Implementation (Advances in Computer Science and Engineering Texts) by Amos Omondi, Benjamin Premkumar, 2007-09-10
  14. Number Theory: Volume II: Analytic andModern Tools (Graduate Texts in Mathematics) by Henri Cohen, 2010-11-02

21. Number System Conversion Tool

http://www.cstc.org/data/resources/60/convtop.html
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22. The Number System
The number system. This page contains concise explanations of commonly used typesof numbers. Natural Numbers. Natural numbers are the numbers 1, 2, 3, .
http://www.math.utah.edu/~alfeld/math/numbers.html
Understanding Mathematics by Peter Alfeld, Department of Mathematics, University of Utah
The Number System
This page contains concise explanations of commonly used types of numbers.
Natural Numbers
Natural numbers are the numbers 1, 2, 3, ... .
Integers
All natural numbers are integers, but also 0, -1, -2, ... .
Rational numbers
Rational numbers are fractions p/q where q is non-zero and p and q are both integer. For example, all integers are rational (pick q =1). Other examples of rational numbers are
Real numbers
Without getting technical, real numbers are all numbers that can be written as a possibly never repeating decimal fraction. For example, all rational numbers are real. Their decimal representations do repeat. Decimal fractions whose representation do not repeat are irrational.

23. Chapter 2 Number System And Codes
Chapter 2. number system and Codes. 21 Binary-to-Decimal Conversion. 2-2 Decimal-to-BinaryConversion. 2-3 Octal number system. 2-4 Hexadecimal number system.
http://www.eelab.usyd.edu.au/digital_tutorial/chapter2/2_0.html
Chapter 2 Number System and Codes 2-1 Binary-to-Decimal Conversion 2-2 Decimal-to-Binary Conversion 2-3 Octal Number System 2-4 Hexadecimal Number System Let's Go to the QUIZ 2 Introduction The binary number system is the most important one in digital systems, but several others are also important. The decimal system is important because it is universial used to represent quantites outside a digital system. This means that there will be situations where decimal values have to be converted to binary values before they are entered into the digital system. In additional to binary ans decimal, two other number systems find wide-spread applications in digital systems. The octal (base-8) and hexadecimal (base-16) number systems are both used for the same purpose- to provide an efficient means for representing large binary system. This chapter will show you how to perform these conversions.

24. The First Place-Value Number System
The Babylonian's sexagesimal (base60) number system, which first appeared around1900 to 1800 BC, is also credited as being the first known place-value number
http://www.maxmon.com/1900bc.htm
1900 BC
The First Place-Value Number System
The decimal system with which we are fated is a place-value system, which means that the value of a particular digit depends both on the digit itself and on its position within the number. For example, a four in the right-hand column simply means four ...... in the next column it means forty ...... one more column over means four-hundred ...... then four thousand, and so on. For many arithmetic operations, the use of a number system whose base is wholly divisible by many numbers, especially the smaller values, conveys certain advantages. And so we come to the Babylonians, who were famous for their astrological observations and calculations, and who used a sexagesimal (base-60) numbering system (see also The invention of the abacus a Although sixty may appear to be a large value to have as a base, it does convey certain advantages. Sixty is the smallest number that can be wholly divided by two, three, four, five, and six ...... and of course it can also be divided by ten, fifteen, twenty, and thirty. In addition to using base sixty, the Babylonians also made use six and ten as sub-bases. a The Babylonian's sexagesimal system, which first appeared around 1900 to 1800 BC, is also credited as being

25. The Binary Number System
The Binary number system Author David Risley Last Updated March 18, 2001. Page1. But, what is this? Well, basically, it is a number system. Let's look at it
http://www.pcmech.com/show/internal/15/

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The Binary Number System
Author: David Risley Last Updated March 18, 2001 Page: 1 I'm sure everyone has heard that a computer runs on binary code. But, what is this? Well, basically, it is a number system. Let's look at it: Most people use a number system based on 10. We use the digits 0,1,2,3,4,5,6,7,8 and 9 to form our numbers. All numbers can be represented by any number times 10 to some power. For instance: 14,393 = 1.4393 x 10^4

26. The Number System Of Ganda
A Playground of Thoughts number systems of the World The NumberSystem of Ganda The number system of Ganda. This page is based
http://www.sf.airnet.ne.jp/~ts/language/number/ganda.html
A Playground of Thoughts Number Systems of the World
The Number System of Ganda
This page is based on A Basic Grammar of Luganda . (Luganda is another name of Ganda)
It's interesting that bigger numbers have simpler names than smaller numbers.
Number Reading Meaning zeero emu bbiri ssatu nnya ttaano mukaaga musanvu munaana mwenda kkumi kkumi n'emu 10 and 1 kkumi na bbiri 10 and 2 kkumi na ssatu 10 and 3 kkumi na nnya 10 and 4 kkumi na ttaano 10 and 5 kkumi na mukaaga 10 and 6 kkumi na musanvu 10 and 7 kkumi na munaana 10 and 8 kkumi na mwenda 10 and 9 amakumi abili amakumi abili mu emu ) and 1 amakumi abili mu bbiri ) and 2 amakumi abili mu ssatu ) and 3 amakumi abili mu nnya ) and 4 amakumi abili mu ttaano ) and 5 amakumi abili mu mukaaga ) and 6 amakumi abili mu musanvu ) and 7 amakumi abili mu munaana ) and 8 amakumi abili mu mwenda ) and 9 amakumi asatu amakumi asatu mu emu ) and 1 amakumi asatu mu bbiri ) and 2 amakumi asatu mu ssatu ) and 3 amakumi asatu mu nnya ) and 4 amakumi asatu mu ttaano ) and 5 amakumi asatu mu mukaaga ) and 6 amakumi asatu mu musanvu ) and 7 amakumi asatu mu munaana ) and 8 amakumi asatu mu mwenda ) and 9 amakumi ana amakumi ana mu emu ) and 1 amakumi ana mu bbiri ) and 2 amakumi ana mu ssatu ) and 3 amakumi ana mu nnya ) and 4 amakumi ana mu ttaano ) and 5 amakumi ana mu mukaaga ) and 6 amakumi ana mu musanvu ) and 7 amakumi ana mu munaana ) and 8 amakumi ana mu mwenda ) and 9 amakumi ataano amakumi ataano mu emu ) and 1 amakumi ataano mu bbiri ) and 2 amakumi ataano mu ssatu ) and 3 amakumi ataano mu nnya ) and 4 amakumi ataano mu ttaano ) and 5

27. The Number System Of Alamblak
A Playground of Thoughts number systems of the World The NumberSystem of Alamblak The number system of Alamblak. This page is
http://www.sf.airnet.ne.jp/~ts/language/number/alamblak.html
A Playground of Thoughts Number Systems of the World
The Number System of Alamblak
Alamblak has only words for 1, 2, 5, and 20, and other numbers are described as combinations of them.
Number Reading Meaning rpat hosf hosfirpat 2 and 1 hosfihosf 2 and 2 tir yohtt 5 exact tir yohtti rpat (5 exact) and 1 tir yohtti hosf (5 exact) and 2 tir yohtti hosfirpat (5 exact) and (2 and 1) tir yohtti hosfihosf (5 exact) and (2 and 2) tir hosf tir hosfi rpat tir hosfi hosf tir hosfi hosfirpat tir hosfi hosfihosf tir hosfirpat tir hosfirpati rpat tir hosfirpati hosf tir hosfirpati hosfirpat tir hosfirpati hosfihosf yima yohtt 20 exact yima yohtti rpat (20 exact) and 1 yima yohtti hosf (20 exact) and 2 yima yohtti hosfirpat (20 exact) and (2 and 1) yima yohtti hosfihosf (20 exact) and (2 and 2) yima yohtti tir yohtt (20 exact) and (5 exact) yima yohtti tir yohtti rpat (20 exact) and (5 exact) and 1 yima yohtti tir yohtti hosf (20 exact) and (5 exact) and 2 yima yohtti tir yohtti hosfirpat (20 exact) and (5 exact) and (2 and 1) yima yohtti tir yohtti hosfihosf (20 exact) and (5 exact) and (2 and 2) yima yohtti tir hosf yima yohtti tir hosfi rpat yima yohtti tir hosfi hosf yima yohtti tir hosfi hosfirpat yima yohtti tir hosfi hosfihosf yima yohtti tir hosfirpat yima yohtti tir hosfirpati rpat yima yohtti tir hosfirpati hosf yima yohtti tir hosfirpati hosfirpat yima yohtti tir hosfirpati hosfihosf yima hosf yima hosfi rpat yima hosfi hosf yima hosfi hosfirpat yima hosfi hosfihosf yima hosfi tir yohtt yima hosfi tir yohtti rpat yima hosfi tir yohtti hosf yima hosfi tir yohtti hosfirpat

28. National Emergency Number Assn. (NENA)
NENA's mission is to foster the technological advancement, availability, and implementation of a universal emergency telephone number system.
http://www.nena9-1-1.org/
Chapter s Technical Standards / Work Operational Standards / Work Wireless NENA/DOT Project ... Search This We ek in 9-1-1 Other News NENA Working With the FCC to Promote the TSP Program:
NENA is working with the FCC to promote the use of the federal Telecommunication Service Priority TSP) program by public safety agencies. TSP provides a higher priority for restoration after sudden service loss for those telecommunications circuits registered under TSP, as compared to the restoration priority Public Safety Answering Points ( PSAPs ) have always had through their local telephone companies. As more corporations and other entities have signed up for TSP, those PSAP circuits not assigned TSP have fallen lower in the restoration priority hierarchy. The FCC documents linked below describe TSP and the process for utilizing it. In addition, an initial guideline for which circuits to consider for TSP will be added here before the end of next week. FCC Press Release

29. Numeral System - Wikipedia
Numeral system. (Redirected from number system). A The term scale ofnotation is also used for a number system. The binary system. The
http://www.wikipedia.org/wiki/Number_system
Main Page Recent changes Edit this page Page history Special pages Set my user preferences My watchlist Recently updated pages Upload image files Image list Registered users Site statistics Random article Orphaned articles Orphaned images Popular articles Most wanted articles Short articles Long articles Newly created articles Interlanguage links All pages by title Blocked IP addresses Maintenance page External book sources Printable version Talk
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Numeral system
(Redirected from Number system A numeral is a symbol or group of symbols that represents a number . Numerals differ from numbers just as words differ from the things they refer to. The symbols "11", "eleven" and "XI" are different numerals, but they all represent the same number. This article treats differing systems of numerals representing the same system of numbers. The system of real numbers , the system of complex numbers , the system of p -adic numbers , etc., may be called different number systems , and those are not the topic of this article.
Introduction and notation
In a positional numeral system of base b b basic symbols (or digits) corresponding to the first b natural numbers including zero are used. To generate the rest of the numerals, the position of the symbol in the figure is used. The symbol in the last position has its own value, and as it moves to the left its value is multiplied by

30. Number System With Base 36, Word Primes
number system With Base 36. As we than 10. B stands for the decimal11 in any number system with base greater than 11, and so on.
http://www.cut-the-knot.com/recurrence/word_primes.shtml
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Number System With Base 36.
As we already know , the number of digits in any base ( radix ) N is exactly the same number N. For example, in the binary (N = 2) system there are two digits: and 1; in the decimal (N = 10) there are ten of them: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. What if N exceeds 10? Content and Front pages cycles through representations of the same number in bases from 2 through 20. In base 20, we have the following 20 digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, G, H, I, J. This is enough to get meaningful words occasionally. For example, FACE, BEEF, CAFE, DEED, BAD, CAD, FADE may appear even in the hexadecimal (N = 16) system. Here are more examples for a larger radix: HIGH, FIG, JADE, JIBE, DIG. The ultimate inclusion of the alphabet comes with the base 36 where we need 36 digits. In base 36, every single English word represents a number. So it becomes less of a fun to seek numbers represented by a meaningful combination of letters. We become more selective. We may look not for just any word but for words representing numbers with some special properties. Chris Caldwell has put together an awesome page devoted to the prime numbers.

31. The Real Number System - Mathematics And The Liberal Arts
The Real number system Mathematics and the Liberal Arts.
http://math.truman.edu/~thammond/history/RealNumberSystem.html
The Real Number System - Mathematics and the Liberal Arts
To refine search, see subtopic The Method of Exhaustion . For material on related topics, see Arithmetic . Laterally related topics: Number Systems Numerology Magic Squares Bookkeeping ... The Negative Numbers , and Imaginary and Complex Numbers The Mathematics and the Liberal Arts pages are intended to be a resource for student research projects and for teachers interested in using the history of mathematics in their courses. Many pages focus on ethnomathematics and in the connections between mathematics and other disciplines. The notes in these pages are intended as much to evoke ideas as to indicate what the books and articles are about. They are not intended as reviews. However, some items have been reviewed in Mathematical Reviews , published by The American Mathematical Society. When the mathematical review (MR) number and reviewer are known to the author of these pages, they are given as part of the bibliographic citation. Subscribing institutions can access the more recent MR reviews online through MathSciNet Gillings, R. J. The Volume of a Truncated Pyramid in Ancient Egytian Papryi.

32. Delta Electronics EMI Filters Part Number System
New Product Release, Online Catalogue, Part number system. Part number system.MODELS OTHER THAN POWER ENTRY MODULE TYPES AND PC BOARD MOUNTING TYPES.
http://www.deltaww.com/products/emi/partno.htm
Product Finder product in alphabetic order . AC Motor Drive . Adapter,Charger . Ballast . Chip Inductor . DC/DC Converters,Voltage Regulator Module . DC Brushless Spindle Motors / Stepping Motors . EMI Filter . Fiber Optic Passive Components . Fiber Optical Transceiver . Front Projectors . Hi-Resolution Color Monitors . Inverter . Magnetics for Power System . Networking Components . Programmable Logic Controller . Rear Projection Display . RS-485/RS-422 Modules . Switching Power Supplies . Telecom Components . Telecom Power . UPS . Voltage Controlled Oscillator (VCO), VCTCXO, Power Amplifier Module (PAM), GPS Antenna Search Delta completes
ISO-14001 certification
Numerous vendor
awards received
... Online Catalogue Part Number System Delta Home Products Components / EMI Filters All Products Series : Selection 15A DE Series A Series AB Series AE Series AK Series AR Series BE Series BE(DUAL) Series BE(Medical) Series BE(Switch) Series BE(Medical) Series C Series CK Series CR Series DB Series DC Series DC(Medical) Series DE Series DEN Series DH(Medical) Series DK Series DP Series DP(Medical) Series DR Series DRT Series DS Series DV Series DW Series EB Series EK Series EK(Medical) Series GE Series GEN Series GK Series GKN Series HB Series HK Series IB Series KE Series KE(Medical) Series KEN Series KEN(Medical) Series L Series LE Series LFR Series LSR Series ME Series

33. Net Number System At A Crossroads | CNET News.com
Net number system at a crossroads By Dan Goodin and Courtney Macavinta Staff Writer,CNET News.com May 12, 1999, 500 AM PT news analysis Alongside the highly
http://news.com.com/2009-1023-225712.html
CNET tech sites: Price comparisons Product reviews Tech news Downloads ... Perspectives
Net number system at a crossroads By Dan Goodin and Courtney Macavinta
Staff Writer, CNET News.com
May 12, 1999, 5:00 AM PT
news analysis Alongside the highly public debate over domain names, a little-understood predicamentwith more far-reaching consequencesis confronting the new nonprofit corporation in charge of the Net's administration. Forget about ".com." The critical resource under the Net's hood is numerical addresses, and the Internet Corporation for Assigned Names and Numbers now is in charge of those, too. Every online device or computer needs an Internet Protocol (IP) numerical address to connect to the global network. When the system was being designed, hardly anyone imagined that its 4.2 billion unique addresses would ever be exhausted. Just a few decades later, however, some in the technical community fear that the rapid pace of innovation one day may cause the Net to run out of numbers. Demand for IP numbers is naturally growing due to the Net's evolution as a meeting place and marketplace.

34. Net Number System Faces Infighting | CNET News.com
Net number system faces infighting By Dan Goodin Staff Writer, CNET News.com August4, 1999, 225 PM PT As the Internet faces a potentially crippling shortage
http://news.com.com/2100-1023-229441.html?legacy=cnet

35. Part Number System
range of end fittings. The Walther Part number system. Walther partnumbers are long, but very descriptive. All of the information
http://www.maxbar.com/part_number_system.htm
Maxbar: Walther Präzision (pronounced Walther Precision) quick connect couplings in the USA.
Part Number System End Fitting Standards Flow Capacity
(Cv)
... Conversion Factors Modular Construction System Virtually all Walther couplings use modular construction. Self-sealing couplings and nipples use interchangeable ends, allowing a very wide range of end fittings. The Walther Part Number System Walther part numbers are long, but very descriptive. All of the information on most couplings is contained in the various groups of the part number, which are separated by dashes - . For example: Series Bore
(mm) Product
type End Fitting Thread Material Seal
material Options Type Gender Size LP WR -OV -SI Series
The Series is a general family or group of couplings that share certain design similarities. For example, the "LP" Series is a family of general purpose low pressure couplings. See the Couplings Index for a complete list of the available series. Bore
This is the ID (flow diameter) of the coupling in mm.

36. The Ancient Egyptian Number System
Column Banner Egyptology The Ancient Egyptian number system. by CarolineSeawright March 19, 2001 The Ancient Egyptian number system.
http://www.thekeep.org/~kunoichi/kunoichi/themestream/egypt_maths.html
The Ancient Egyptian Number System
by Caroline Seawright
March 19, 2001
The Ancient Egyptian Number System
In ancient Egypt mathematics was used for measuring time, straight lines, the level of the Nile floodings, calculating areas of land, counting money, working out taxes and cooking. Maths was even used in mythology - the Egyptians figured out the numbers of days in the year with their calendar . They were one of the ancient peoples who got it closest to the 'true year', though their mathematical skills. Maths was also used with fantastic results for building tombs, pyramids and other architectural marvels. A part of the largest surviving mathematical scroll, the Rhind Papyrus (written in hieratic script), asks questions about the geometry of triangles. It is, in essence, a mathematical text book. The surviving parts of the papyrus show how the Egyptian engineers calculated the proportions of pyramids as well as other structures. Originally, this papyrus was five meters long and thirty three centimeters tall. It is again to the Nile Valley that we must look for evidence of the early influence on Greek mathematics. With respect to geometry, the commentators are unanimous: the mathematician-priests of the Nile Valley knew no peer. The geometry of Pythagoras, Eudoxus, Plato, and Euclid was learned in Nile Valley temples. Four mathematical papyri still survive, most importantly the Rhind mathematical papyrus dating to 1832 B.C. Not only do these papyri show that the priests had mastered all the processes of arithmetic, including a theory of number, but had developed formulas enabling them to find solutions of problems with one and two unknowns, along with "think of a number problems." With all of this plus the arithmetic and geometric progressions they discovered, it is evident that by 1832 B.C., algebra was in place in the Nile Valley.

37. Bob's Positive Integer Pages
Various articles about positive integers, including an alternative number system that avoids the digit and number zero, a look at number systems and at the concept of zero.
http://www.tbaytel.net/~forslund/bob.html
Welcome to Bob's Positive Integer Pages
12th Update Aug.30, 1999
These pages focus on the set of positive integers and the operators between them. An Alternate Number System that has no need for the digit zero is presented, and other topics related to positive integers are discussed. You will find minimal reference to the number zero and negative numbers. Hopefully both recreational and professional mathematicians will find something of interest - the intent of these pages is to motivate others to explore the fascinating world of positive integers. I am confident with most of the ideas on these pages. However a few ideas are still in their infancy, and require further development and refinement. I therefore welcome your input to aid in expanding some of the thoughts. These pages are not necessarily static, and hopefully, will evolve in a positive manner as time goes on. I will be doing updates periodically to add more information.
If you like what you see, tell others. If you don't tell me.
Most of all - Enjoy
Main Menu
Some Positive Thoughts - Thoughts on the positive integers.

38. The Nashville Number System
The Nashville number system is the system for notating and communicating music withnumbers instead of chord lettersused in television and recording studios.
http://www.nashvillenumbersystem.com/
The Nashville Number System
In the late 50's, Neil Matthews devised a musical number system for the Jordanaires to use in the studio. Charlie McCoy and fellow studio musicians began adapting Matthews' number system into chord charts. The Nashville Number System has evolved into a complete method of writing chord charts and melodies-combining Nashville shorthand with formal notation standards. Professional musicians in Nashville work everyday in the studio, auditioning and rehearsing for artists or playing for someone who wants to showcase their talent for a record companyall with no time to memorize a cd's worth of material. If rehearsal time is at a premium, a chord chart is often the only way for a band who has never worked together to perform music with any confidence. New with Edition 6 is the cd, "1511". This is a 9 song cd of original instrumental material included with each NNS book. Charts for each song are found in the book. As well, Chas walks you through the intricacies of each song and explains the Number System tools used to write each chart. Now, while listening to the cd, you can see and hear how Nashville number charts work. "I'd say 95% of the time we use Number System charts. The one really great advantage of the Number System is the ease of transpositionif a singer comes in and the song is in F and he or she says, 'No, I want to do this in Eb', you'd have a problem with a regular chart. You'd have to rewrite the whole thing. Whereas with the Number Chart, you just say, 'Eb? Okay!'"

39. Introductory Algebra - Chapter 1: The Real Number System
your computer is running the Windows 95 or later operating system, click on 1.2 Variables,Expressions, and Equations 1.3 Real Numbers and the Number Line 1.4
http://www.mathnotes.com/Intro/aw_introchap1.html
Chapter 1: The Real Number System Students and Teachers!
Would you like to be able to use InterAct over the Web? or try Real World problems that link you to other Web sites for more data and information? See below! InterAct Tutorials
To access the InterAct tutorials over the Web, you will need to download the InterAct plug-inbut you will only need to do this once. To download the InterAct Math Plugin, follow these directions:
If your computer is running the Windows 95 or later operating system, click on the button titled "Download InterAct Math" to go to the InterAct Math Plugin Download Web site. A new browser window will open to the InterAct Math Download Web page. Select "Installation Instructions". Follow the downloading instructions. Then return to this site to select the InterAct Math problem you would like to practice.
Interact Tutorials
Please Note: This plug-in will work for Windows users only. Exponents, Order of Operations, and Inequality
Variables, Expressions, and Equations

Real Numbers and the Number Line

Addition of Real Numbers
...
Simplifying Expressions

Numbers in the Real World To access the Numbers in the Real World applications, simply click on the hyperlinked application name below.

40. Construction Of The Number System
next up previous contents Next Construction of N Up What are numbers?Previous Introduction. Construction of the number system.
http://db.uwaterloo.ca/~alopez-o/math-faq/node13.html
Next: Construction of N Up: What are numbers? Previous: Introduction
Construction of the Number System
Formally (following the mainstream in math) the numbers are constructed from scratch out of the axioms of Zermelo Fraenkel set theory (a.k.a. ZF set theory) [Enderton77, Henle86, Hrbacek84]. The only things that can be derived from the axioms are sets with the empty set at the bottom of the hierarchy. This will mean that any number is a set (it is the only thing you can derive from the axioms). It doesn't mean that you always have to use set notation when you use numbers: just introduce the numerals as an abbreviation of the formal counterparts. The construction starts with N and algebraically speaking, N with its operations and order is quite a weak structure. In the following constructions the structures will be strengthen one step at the time: Z will be an integral domain, Q will be a field, for the field R the order will be made complete, and field C will be made algebraically complete. Before we start, first some notational stuff:
  • a pair
  • an equivalence class
  • the successor of a is
Although the previous notations and the constructions that follow are the de facto standard ones, there are different definitions possible.

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