The final boolean operator we will cover is not
. This operator is straightforward: when applied to any boolean expression it reverses the boolean value. So if we have a True
statement and apply a not
operator we get a False
statement.
not True == False not False == True
Consider the following statement:
Oranges are not a fruit.
Here, we took the True
statement oranges are a fruit
and added a not
operator to make the False
statement oranges are not a fruit
.
This example in English is slightly different from the way it would appear in Python because in Python we add the not
operator to the very beginning of the statement. Let’s take a look at some of those:
not 1 + 1 == 2 # False not 7 < 0 # True
Instructions
Set the variables statement_one
and statement_two
equal to the results of the following boolean expressions:
Statement one:
not (4 + 5 <= 9)
Statement two:
not (8 * 2) != 20 - 4
The registrar’s office at Calvin Coolidge’s Cool College has been so impressed with your work so far that they have another task for you. They want you to return to a previous if
statement and add in several checks using and
and not
statements:
- If a student’s GPA is greater or equal to 2.0, it should print:
"You do not have enough credits to graduate."
- If they have enough credits but their GPA is less than 2.0, it should print:
"Your GPA is not high enough to graduate."
- If their credit is not greater than or equal to 120 and their GPA is not greater than or equal to 2.0, it should print:
"You do not meet either requirement to graduate!"
Make sure your return value matches those strings exactly. Capitalization, punctuation, and spaces matter!