Lesson 4: The Characteristics of the Mathematical Language and Some Symbols

Question 1

+

Answer 1

ADDITION

Question 2

-

Answer 2

SUBTRACTION

Question 3

×

Answer 3

MULTIPLICATION

Question 4

÷

Answer 4

DIVISION

Question 5

n!

Answer 5

N FACTORIAL (n-1)(n-2)(n-3)…

Question 6

¬ or ~

Answer 6

NOT

Question 7

⇔

Answer 7

IFF or IF AND ONLY IF

Question 8

⇒

Answer 8

IMPLIES

Question 9

∀

Answer 9

FOR EVERY

Question 10

∃

Answer 10

THERE EXIST

Question 11

Ʃ

Answer 11

SUMMATION

Question 12

∴

Answer 12

THEREFORE

Question 13

∞

Answer 13

INFINITY

Question 14

≈

Answer 14

APPROXIMATELY EQUAL TO

Question 15

≅

Answer 15

CONGRUENT TO

Question 16

>

Answer 16

GREATER THAN

Question 17

≤

Answer 17

LESS THAN OR EQUAL TO

Question 18

≥

Answer 18

GREATER THAN OR EQUAL TO

Question 19

=

Answer 19

EQUAL

Question 20

≠

Answer 20

NOT EQUAL TO

Question 21

n!

Answer 21

N FACTORIAL (n-1)(n-2)(n-3)…

Question 22

¬ or ~

Answer 22

NOT

Question 23

⇔

Answer 23

IFF or IF AND ONLY IF

Question 24

⇒

Answer 24

IMPLIES

Question 25

∀

Answer 25

FOR EVERY

Question 26

∃

Answer 26

THERE EXIST

Question 27

Ʃ

Answer 27

SUMMATION

Question 28

∴

Answer 28

THEREFORE

Question 29

∞

Answer 29

INFINITY

Question 30

≈

Answer 30

APPROXIMATELY EQUAL TO

Question 31

≅

Answer 31

CONGRUENT TO

Question 32

⊆, ⊂

Answer 32

SUBSET

Question 33

{ }

Answer 33

SET

Question 34

ℕ0

Answer 34

NATURAL NUMBERS or WHOLE NUMBERS SET (WITH 0)

Question 35

ℕ1

Answer 35

NATURAL NUMBERS or WHOLE NUMBERS SET (WITHOUT 0)

Question 36

ℤ

Answer 36

INTEGER NUMBERS SET

Question 37

ℚ

Answer 37

RATIONAL NUMBERS SET

Question 38

ℝ

Answer 38

REAL NUMBERS SET

Question 39

ℂ

Answer 39

COMPLEX NUMBERS SET

Answer 40

LESS THAN