Logical Operators

Logical operators combine boolean expressions.

Operator	Meaning	Example
and	true if both operands are true	x > 0 and y > 0
or	true if either operand is true	x > 0 or y > 0
not	inverts truth value	not is_valid

Example

x = True
y = False

print(x and y)  # False
print(x or y)   # True
print(not x)    # False

Truth Tables

and

A	B	A and B
True	True	True
True	False	False
False	True	False
False	False	False

or

A	B	A or B
True	True	True
True	False	True
False	True	True
False	False	False

not

A	not A
True	False
False	True

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