What is boolean data type

In computer science  the boolean data type  is the data type that has one of the two possible values

usually denoted true or false.
Example:-  
                      if(3!=2)
                         printf(“Rajnish”);
in this example the expression (3!=2) is false So it is boolean .
As in python if we check the type of this expression :-
                                                                                            >>>type(3!=2)
                                                Then the output of this is   >>> <class ‘bool’>
Examples:-  1) 3>2
                     2) 3==2 etc.
So an expression which has output true or false are comes under boolean data type.

                      

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