A set can be heterogeneous (i.e., it can have different kinds of elements in it)

Question 1

1 / 1 pts

A set can be heterogeneous (i.e., it can have different kinds of elements in it).

Correct!

True

False

Question 2

1 / 1 pts

If set A is a subset of set B, then every element of A is also a member of B.

Correct!

True

False

Question 3

1 / 1 pts

$\mathbb{R} \cup \mathbb{R} = \mathbb{R} \cap \mathbb{R}$

Correct!

True

False

Question 4

1 / 1 pts

$\{\heartsuit, \spadesuit, \diamondsuit\} = \{\spadesuit, \heartsuit, \diamondsuit\}$

Correct!

True

False

Question 5

1 / 1 pts

$\varnothing \subseteq X \subseteq \Omega \text{ for any set } X.$ Ø&subseteq;X&subseteq;Ωfor any setX.

Correct!

True

False

Question 6

1 / 1 pts

$-5 \in \mathbb{N}$

True

Correct!

False

Question 7

1 / 1 pts

$5 \in \mathbb{P}(\mathbb{N})$

True

Correct!

False

Question 8

1 / 1 pts

$\{5\} \subseteq \mathbb{P}(\mathbb{N})$

True

Correct!

False

Question 9

1 / 1 pts

$\{5\} \in \mathbb{P}(\mathbb{N})$

Correct!

True

False

Question 10

1 / 1 pts

$\text{(bill,ted)} = \text{(ted,bill)}$

True

Correct!

False

Question 11

1 / 1 pts

{(bill,ted),(ted,bill)}={(ted,bill),(bill,ted)}

Correct!

True

False

Question 12

1 / 1 pts

Which of the following are elements of $\{ \text{Gold, Silver, Bronze} \} \times \{ \text{Phelps, Bolt} \}$ {Gold, Silver, Bronze}×{Phelps, Bolt}?

Gold

Bolt

{ Gold, Silver, Bronze }

( Gold, Silver, Bronze )

( Phelps, Bolt )

Correct!

( Gold, Bolt )

Correct!

( Silver, Phelps )

$\varnothing$

Question 13

1 / 1 pts

What’s $\mathbb{P}(\{ \text{Tweedledee, Tweedledum} \})$ ?

{ (Tweedledee, Tweedledum), (Tweedledum, Tweedledee) }

{ $\varnothing$ , Tweedledee, Tweedledum }

Correct!

{ { Tweedledum, Tweedledee }, { Tweedledum }, $\varnothing$ , { Tweedledee } }

(Tweedledee, Tweedledum)

Question 14

1 / 1 pts

LetDbe the set \{ Pikachu, Charmander \}, andCbe the set \{ Pikachu, Piplup \}.

What’s $D \cup C$ D∪C?

Correct!

{ Pikachu, Charmander, Piplup }

{ Pikachu }

( Pikachu, Piplup )

$\varnothing$

Question 15

1 / 1 pts

LetDbe the set \{ Pikachu, Charmander \}, andCbe the set \{ Pikachu, Piplup \}.

What’s $D \cap C$ D∩C?

{ Pikachu, Piplup }

Pikachu

Correct!

{ Pikachu }

{ Pikachu, Charmander, Piplup }

Question 16

1 / 1 pts

LetDbe the set \{ Pikachu, Charmander \}, andCbe the set \{ Pikachu, Piplup \}.

What’s D−C?

{ Pikachu, Piplup }

Correct!

{ Charmander }

Piplup

Pikachu

Question 17

1 / 1 pts

LetDbe the set \{ Pikachu, Charmander \}, andCbe the set \{ Pikachu, Piplup \}.

What’s C−D?

Piplup

{ Piplup, Charmander }

( Piplup, Charmander )

Charmander

Correct!

{ Piplup }

Question 18

1 / 1 pts

Let D be the set $\{ \text{ Grumpy, Happy, Sneezy, Sleepy, Dopey, Bashful, Doc } \}$ {Grumpy, Happy, Sneezy, Sleepy, Dopey, Bashful, Doc}.

Is {{Bashful},Ø,{Dopey, Grumpy, Sneezy, Sleepy, Happy},{Doc}}a partition of D?

Correct Answer

Yes

You Answered

Question 19

1 / 1 pts

Let D be the set $\{ \text{ Grumpy, Happy, Sneezy, Sleepy, Dopey, Bashful, Doc } \}$

Is {{Happy, Doc},{Grumpy, Sneezy, Happy},{Bashful},{Dopey, Sleepy}}a partition of D?

Yes

Question 20

1 / 1 pts

Let D be the set $\{ \text{ Grumpy, Happy, Sneezy, Sleepy, Dopey, Bashful, Doc } \}$ {Grumpy, Happy, Sneezy, Sleepy, Dopey, Bashful, Doc}.

Is {{Dopey},{Sleepy},{Sneezy},{Doc},{Bashful},{Happy}} a partition of D?

Yes

Correct!

A set can be heterogeneous (i.e., it can have different kinds of elements in it)

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