Counting number

Section 5.1: Natural Numbers

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5.1 Outline

  1. Basic concepts
    1. counting numbers
    2. natural numbers
    3. addition
  2. Closure property
    1. definition
    2. closed/not closed
  3. Commutative and associative properties
    1. commutative property for addition
    2. associative property for addition
    3. definition of multiplication
    4. closure for multiplication in the set of natural numbers
    5. commutative property
… See the whole entry

Section 1.4: Review for Chapter 1

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Studying for a chapter examination is a personal process, one which nobody else can do for you. Simply take the time to review what you have done.

Here are the new terms in Chapter 1.

Addition law of exponents [1.3]… See the whole entry