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Chapter 1: Problem 53

Tell whether each statement is true or false. Every natural number is positive.

Short Answer

Expert verified
True, every natural number is positive.

Step by step solution

01

Understanding Natural Numbers

Natural numbers are the set of numbers that are used for counting and ordering. The sequence typically starts from 1 and goes to infinity: 1, 2, 3, 4, 5, and so on.
02

Identifying Positive Numbers

Positive numbers are all the numbers greater than zero. They include 1, 2, 3, 4, and so forth, including all the natural numbers.
03

Comparing Definitions

Since natural numbers include numbers starting from 1 (not including zero or negative numbers) and these are all greater than zero, every natural number is indeed a positive number.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Positive Numbers
Positive numbers are essential in everyday mathematics. They are numbers greater than zero and often represent quantities or measures. For example, if you have five apples, that is a positive number representation.
  • Positive numbers include integers like 1, 2, and 3. These numbers increase to infinity.
  • They do not include zero or any negative numbers like -1, -2, etc.
  • In mathematical notation, a positive number is often shown without the "+" sign because the positivity is implied. For instance: 3 instead of +3.
When considering natural numbers, each one is automatically positive. They start from 1 and go upwards, aligning perfectly with the definition of being greater than zero.
Counting Numbers
Counting numbers, also known as natural numbers, are fundamental for basic arithmetic. These numbers help us in counting discrete objects, like apples or cars.
  • Counting starts at 1, which is why zero is not considered a counting number.
  • Every number following 1 is created by adding 1 repeatedly, leading the sequence to continue without end.
  • Some definitions include zero as a counting number for certain mathematical purposes, but traditionally, counting numbers start at 1.
Counting numbers are foundational in understanding sequences, addition, and basic counting operations. They are the first numbers children learn and use when beginning their mathematical journey.
Infinity
Infinity is a concept that describes something endless or unbounded. It is not a number in the traditional sense but a notion that allows mathematicians to discuss and understand limitless concepts.
  • Infinity is denoted by the symbol \( \infty \) and is crucial in calculus and set theory.
  • When we say numbers like counting numbers "go to infinity," we mean they can increase endlessly.
  • Infinity is used to describe not just large numbers, but also continuous processes or series.
While our minds can conceptualize large numbers, the idea of infinity helps push beyond any numerical bounds we might perceive. It is an exciting concept that touches on the infinite nature of mathematics itself.

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Most popular questions from this chapter

Add or subtract as indicated. Write the answer in lowers ferms. See Example 7. $$ \frac{7}{10}-\frac{8}{15} $$

Decide whether the given number is a solution of the given equation. Is \(-10\) a solution of \(-x-6=-x-1 ?\)

A trapezoid is a four-sided figure with exactly one pair of parallel sides. The expression \(\frac{1}{2} h(B+b)\) represents its area, when \(B\) and \(b\) are the lengths of the two parallel sides and \(h\) is the height between these sides. Find the area if \(B=15\) inches, \(b=7\) inches, and \(h=5\) inches.

Simplify each expression. (Remember the order of operations.) See Examples 4 and 5. $$ 2-3(8-6) $$

In your own words, explain how to multiply two fractions
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