LOGICAL EXPRESSION

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LOGICAL EXPRESSION 

 In Python, logical expressions are used to evaluate the truthiness or falsiness of a combination of conditions. Logical expressions involve the use of logical operators, such as "and", "or", and "not". These operators allow you to combine multiple conditions and evaluate them as a single Boolean result.

Here are the logical operators in Python:

  1. Logical AND (and): Returns True if both conditions on the left and right are True. Example: x > 5 and y < 10 evaluates to True if x is greater than 5 and y is less than 10.


  3. Logical OR (or): Returns True if at least one of the conditions on the left or right is True. Example: x > 5 or y < 10 evaluates to True if either x is greater than 5 or y is less than 10.


  5. Logical NOT (not): Reverses the truthiness of a single condition. If the condition is True, it returns False, and vice versa. Example: not x > 5 evaluates to True if x is not greater than 5.

Here's an example code snippet that demonstrates the usage of logical expressions in Python:

# Logical expressions example # AND operator x = 5 y = 10 if x > 0 and y < 20: print("Both conditions are True") # OR operator age = 25 if age < 18 or age > 60: print("You are either below 18 or above 60") # NOT operator flag = False if not flag: print("The flag is False")

In this example, we use the logical AND operator (x > 0 and y < 20) to check if both conditions are True, the logical OR operator (age < 18 or age > 60) to check if the age is either below 18 or above 60, and the logical NOT operator (not flag) to check if the flag is False.

In this code snippet, we have three examples of logical expressions:

  1. The logical AND operator (and) is used to check if both conditions x > 0 and y < 20 are True. If both conditions are True, it executes the corresponding block of code.


  3. The logical OR operator (or) is used to check if either the condition age < 18 or age > 60 is True. If at least one of the conditions is True, it executes the corresponding block of code.


  5. The logical NOT operator (not) is used to check if the condition flag is False. If the condition is True (i.e., flag is False), it executes the corresponding block of code.

You can run this code and observe the output based on the truthiness or falsiness of the conditions.

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