Lesson 4: The Characteristics of the Mathematical Language and Some Symbols Flashcards
1
Q
+
A
ADDITION
2
Q
-
A
SUBTRACTION
3
Q
×
A
MULTIPLICATION
4
Q
÷
A
DIVISION
5
Q
n!
A
N FACTORIAL (n-1)(n-2)(n-3)…
6
Q
¬ or ~
A
NOT
7
Q
⇔
A
IFF or IF AND ONLY IF
8
Q
⇒
A
IMPLIES
9
Q
∀
A
FOR EVERY
10
Q
∃
A
THERE EXIST
11
Q
Ʃ
A
SUMMATION
12
Q
∴
A
THEREFORE
13
Q
∞
A
INFINITY
14
Q
≈
A
APPROXIMATELY EQUAL TO
15
Q
≅
A
CONGRUENT TO
16
Q
>
A
GREATER THAN
17
Q
≤
A
LESS THAN OR EQUAL TO
18
Q
≥
A
GREATER THAN OR EQUAL TO
19
Q
=
A
EQUAL
20
Q
≠
A
NOT EQUAL TO
21
Q
n!
A
N FACTORIAL (n-1)(n-2)(n-3)…
22
Q
¬ or ~
A
NOT
23
Q
⇔
A
IFF or IF AND ONLY IF
24
Q
⇒
A
IMPLIES
25
Q
∀
A
FOR EVERY
26
Q
∃
A
THERE EXIST
27
Q
Ʃ
A
SUMMATION
28
Q
∴
A
THEREFORE
29
Q
∞
A
INFINITY
30
Q
≈
A
APPROXIMATELY EQUAL TO
31
Q
≅
A
CONGRUENT TO
32
Q
⊆, ⊂
A
SUBSET
33
Q
{ }
A
SET
34
Q
ℕ0
A
NATURAL NUMBERS or WHOLE NUMBERS SET (WITH 0)
35
Q
ℕ1
A
NATURAL NUMBERS or WHOLE NUMBERS SET (WITHOUT 0)
36
Q
ℤ
A
INTEGER NUMBERS SET
37
Q
ℚ
A
RATIONAL NUMBERS SET
38
Q
ℝ
A
REAL NUMBERS SET
39
Q
ℂ
A
COMPLEX NUMBERS SET
40
Q
A
LESS THAN
