Discrete Math Symbols - Lecture notes NA PDF

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Insert | Equation or Control = No

Meaning

Symbol

. 1

Greater than

>

2

Greater than or equal to

≥

3 4

Lesser than Lesser than or equal to

Shortcut: Option + > < ≤

6

Negation

Shortcut: Option + < ~

7

And

∧

8

Or

V

9

Implies

→

10

Tick

✔

11

Power

12

Sigma

22 ∑

n

1

1

≤ 2− ∑ 2 n r=1 r n ∑ r=11 13

Square root

Shortcut: Option+W √

14

Existential quantifier

Shortcut: Option + V ∃

15

Variables

,�

16

In

∈

(Eg. X in D)

17

Not an element of Such that

|

18

In all

∀

∉

Insert | Equation or Control = 19

Set of real numbers

20

Set of positive real numbers

21

Set of rational numbers

22

Set of positive rational numbers

23

Set of integers

24

Set of positive integers (Natural numbers)

ℕ

25

Curly bracket

[]

26

Equivalent

{} ≡

27

Logical connectives a) Universal conditional statement

ℝ +¿¿ R Q +¿ ¿ Q Z

↔ →

28

Therefore

∴

29

Subset

⊆ ⊇

Eg. A is a subset of B 30

Eg. B is a subset of A Neither a subset nor equal to

⊈

31

Neither a superset nor equal to

⊉

32

Not a subset of

⊄

33

Not a superset of

⊅

34

Subset of

⊂

35

Superset of

⊃

36

Right double arrow

⇒

37

Double arrow

⟺

38

Not equal to

≠

39

Empty set

∅

40

Union

∪

41

Intersection

∩

42

Unbounded intervals

∞

Insert | Equation or Control = A i ∩ A j =∅...