SubjectPaid lesson
Logical reasoning (II)
CT
ClassNotes Team 5 MIN READUPDATED 17 JUN 2026Mathematics SSS 1 Second Term
WEEK 5
Logical reasoning (II)
Performance Objectives
Students should be able to;
- List the five logical operations and their symbols
- Write the truth table for compound statement involving the logical operations.
- Translate logic symbols
Logical operations and symbols
Content
The word ‘not’ and the four connectives ‘and’, ‘or’, ‘if … then’, ‘if and only if’ are called logic operators. They are also referred to as logical constants. The symbols adopted for the logic operators are given below.
|
Logic Operators |
Symbols |
|
|
'not' |
− or ~ |
|
|
'and' |
∧ |
|
|
'or' |
∨ |
|
|
'if...then' |
→ |
|
|
'if and only if' |
↔ |
When the symbols above are applied to propositions p and q, we obtain…