Boolean logicWhat is Boolean logic?

When designing programs, there are often points where a condition needs to be tested in order to make a decision. Conditions are formed using Boolean logic.

Part of Computer ScienceProgramming

What is Boolean logic?

use simple comparisons to help make decisions. is a form of algebra where all are either true or false. These values of true and false are used to test the that and are based around.

Boolean logic is a form of algebra where all values are evaluated to be either True or False. For example 3 is equal to 3 is evaluated as true and 8 is greater than 10 is evaluated as false.

Boolean logic uses algebra and algebraic expressions. Use these expressions in algorithms and programs:

ExpressionBoolean equivalent
Equals=
Greater than>
Less than<
Greater than or equal to>=
Less than or equal to<=
Does not equal<>
AndAND
OrOR
NotNOT
ExpressionEquals
Boolean equivalent=
ExpressionGreater than
Boolean equivalent>
ExpressionLess than
Boolean equivalent<
ExpressionGreater than or equal to
Boolean equivalent>=
ExpressionLess than or equal to
Boolean equivalent<=
ExpressionDoes not equal
Boolean equivalent<>
ExpressionAnd
Boolean equivalentAND
ExpressionOr
Boolean equivalentOR
ExpressionNot
Boolean equivalentNOT

Most programming languages use these equivalent Boolean expressions. However, some, such as , have slightly different equivalents:

ExpressionBoolean equivalentIn Python
Equal to===
Does not equal<>!=
AndANDand
OrORor
NotNOTnot
ExpressionEqual to
Boolean equivalent=
In Python==
ExpressionDoes not equal
Boolean equivalent<>
In Python!=
ExpressionAnd
Boolean equivalentAND
In Pythonand
ExpressionOr
Boolean equivalentOR
In Pythonor
ExpressionNot
Boolean equivalentNOT
In Pythonnot
Next page
Boolean expressions

More guides on this topic

Related links