tags: #python/documentation/python_conditionals

In the context of conditional statements, logical connectives play a crucial role in forming compound conditions by combining multiple individual conditions. The commonly used logical connectives in Python are and, or, and not.

1. Conjunction: Using theand Operator

The and logical connective is used to create compound conditions that are true only if both individual conditions are true.

Truth Table

x = 5
y = 10

if x > 0 and y > 0:
    print("Both x and y are positive.")

Both x and y are positive.

2. Disjunction: Using theOR Operator

The or logical connective is used to create compound conditions that are true if at least one of the individual conditions is true.

Truth Table

x = 5

if x < 0 or x % 2 == 0:
    print("Either x is negative or x is an even number.")

Either x is negative or x is an even number.

• $x<0$ is False but x % 2 == 0 is True, therefore the whole statement is True and the body of the condition will be executed.

3. Negation: Using theNOT Operator

The not logical connective is used to negate the truth value of a condition. It returns True if the condition is false and vice versa.

Truth Table

x = 5

if not x == 0:
    print("x is not equal to zero.")

x is not equal to zero.

• X == 0 is False; not False is True
• Therefore, the statement is True, and the statement will print.