A set is a collection of elements .

What symbol is the empty set represented by?

∅ represents the empty set (the set with no elements).

What notation is used to represent the number of elements in a set? E.g. The number of elements in set A .

n( A ) represents the number of elements in set A .

What notation is used when writing out a set of elements? E.g. Set A contains the elements 1, 2 and 3.

A set containing a number of elements is shown with the elements written inside curly brackets {}. E.g. A = {1, 2, 3}.

True or False? The universal set is represented by the rectangle in a Venn diagram.

True. The universal set is represented by the rectangle in a Venn diagram.

Revision Notes Flashcards Past Papers

IGCSEMathsEdexcelMaths A (Modular)Higher Unit 1FlashcardsNumberSet Notation & Venn Diagrams

Set Notation & Venn Diagrams (Edexcel IGCSE Maths A (Modular))

Flashcards

1/11

0Still learning

Know0

FrontSet Notation & Venn Diagrams
What is a set?

Enjoying Flashcards?
Tell us what you think

Cards in this collection (11)

What is a set?
A set is a collection of elements.
What symbol is the empty set represented by?
∅ represents the empty set (the set with no elements).
Define the term subset.
A subset is a set within another set.
E.g. If every element of set A is also in set B, then A is a subset of B, ( $A \subset B$ ).
What notation is used to represent the number of elements in a set?
E.g. The number of elements in set A.
n(A) represents the number of elements in set A.
What region in the Venn diagram represents the union of A and B, $(A \cup B)$ ?
The union of A and B, $(A \cup B)$ , is the set of all elements in A or B or both.
Which region represents A' on the Venn diagram below?
A' means not A, (A' is the complement of A) .
The regions not in the A circle, (everything outside A), represent A'.
True or False?
The region shaded below represents the intersection of A and B, $(A \cap B)$ .
False.
The region shown is the intersection of A, B and C, $(A \cap B \cap C)$ .
The intersection of A and B, $(A \cap B)$ , is:
What notation is used when writing out a set of elements?
E.g. Set A contains the elements 1, 2 and 3.
A set containing a number of elements is shown with the elements written inside curly brackets {}.
E.g. A = {1, 2, 3}.
True or False?
The universal set is represented by the rectangle in a Venn diagram.
True.
The universal set is represented by the rectangle in a Venn diagram.
What does the symbol $E$ represent?
$E$ is the universal set (the set of everything).
You may also see other symbols for the universal set, such as U, S or $ξ$ .
What does $a \in A$ mean?
$a \in A$ means $a$ is an element of $A$ .
$a$ is in the set $A$ , or $a$ is a member of the set $A$ .