Cardinality State whether the following sets are finite, countable infinite or uncountable. Set of positive perfect...

Cardinality

State whether the following sets are finite, countable infinite or uncountable.

Set of positive perfect squares.

Is it finite, countable infinite or uncountable? If it is countably infinite, set up the bijection between ℤ⁺.

Negative numbers greater than or equal to -5.

Is it finite, countable infinite or uncountable? If it is countably infinite, set up the bijection between ℤ⁺.

Odd positive integers.

Is it finite, countable infinite or uncountable? If it is countably infinite, set up the bijection between ℤ⁺.

Positive integers less than 10.

Is it finite, countable infinite or uncountable? If it is countably infinite, set up the bijection between ℤ⁺.

Positive rational numbers less than 1.

Is it finite, countable infinite or uncountable? If it is countably infinite, set up the bijection between ℤ⁺.

Real numbers greater than 1 and less than 2.

Is it finite, countable infinite or uncountable? If it is countably infinite, set up the bijection between ℤ⁺.

Write a sentence about what Cantor’s diagonalization can be used to show:

Solutions

Expert Solution

venereology answered 2 years ago

Next > < Previous

Related Solutions

In questions below determine whether each of the following sets is countable or uncountable. For those...

In questions below determine whether each of the following sets is countable or uncountable. For those that are countably infinite exhibit a one-to-one correspondence between the set of positive integers and that set. 1) The set of positive rational numbers that can be written with denominators less than 3. 2) The set of irrational numbers between sqrt(2) and π/2.

5. For each set below, say whether it is finite, countably infinite, or uncountable. Justify your...

5. For each set below, say whether it is finite, countably infinite, or uncountable. Justify your answer in each case, giving a brief reason rather than an actual proof. a. The points along the circumference of a unit circle. (Uncountable because across the unit circle because points are one-to-one correspondence to real numbers) so they are uncountable b. The carbon atoms in a single page of the textbook. ("Finite", since we are able to count the number of atoms in...

Prove: If A is an uncountable set, then it has both uncountable and countably infinite subsets.

1. (a) Explain what is meant by the terms countable set and uncountable set. Give a...

1. (a) Explain what is meant by the terms countable set and uncountable set. Give a concrete example of each. b) Show that if A and B are countably infinite then the set A x B is also countably infinite. c) Give an expression for the cardinality of set A U B when A and B are both finite sets. d) What can you say about the cardinality of the set A U B when A and B are infinite...

A= {{a}, a} p(A) = State the cardinality of set A & cardinality of p(A) ....

A= {{a}, a} p(A) = State the cardinality of set A & cardinality of p(A) . Please explain in great detail to provide a better understanding .

Prove that a subset of a countably infinite set is finite or countably infinite

What are good textbooks to cover these topics? Sets: sets and their elements, finite and infinite...

What are good textbooks to cover these topics? Sets: sets and their elements, finite and infinite sets, operations on sets (unions, intersections and complements), relations between sets(inclusion, equivalence), non equivalent infinite sets, cardinal numbers. Binary Operations: basic definitions, associativity commutativity, neutral elements, inverse elements, groups. Functions: introduction, Cartesian products, functions as subsets of Cartesian products, graphs, composition of functions, injective, bijective and surjective functions, invertible functions, arithmetic operations on real functions, groups of functions. Plane isometries: definition, reflections, translations and...

Let (G,·) be a finite group, and let S be a set with the same cardinality...

Let (G,·) be a finite group, and let S be a set with the same cardinality as G. Then there is a bijection μ:S→G . We can give a group structure to S by defining a binary operation *on S, as follows. For x,y∈ S, define x*y=z where z∈S such that μ(z) = g_{1}·g_{2}, where μ(x)=g_{1} and μ(y)=g_{2}. First prove that (S,*) is a group. Then, what can you say about the bijection μ?

Let X be a set with infinite cardinality. Define Tx = {U ⊆ X : U...

Let X be a set with infinite cardinality. Define Tx = {U ⊆ X : U = Ø or X \ U is finite}. Prove that Tx is a topology on X. (Tx is called the Cofinite Topology or Finite Complement Topology.)

For sets A and B we may define the set difference measure as |A_B| (the cardinality...

For sets A and B we may define the set difference measure as |A_B| (the cardinality of the set A-B), explain why this is never negative. We know this is not a distance, explain why and modify it so that it is a distance. Prove your claim (in particular be careful to show the triangle inequality holds)

Subjects