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Using not in Boolean Contexts
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In the next few lessons, you’ll start to see places where the not operator is commonly used, beginning with Boolean contexts.
00:10 Normally, the instructions in your program progress one after the other, but sometimes you want to change that. There are times a certain piece of code should only be executed if some condition is true, and other sections of code that should be repeated.
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Statements which cause this to happen are called control flow statements because they control the flow, the order, that other statements are executed. To make these determinations, they use a Boolean condition, which is evaluated to True or False.
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So these are considered the Boolean contexts where a not operator might be used. The first are if statements. These allow a certain section of code to be executed based on some Boolean condition being True or False. The others are while loops.
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These allow for certain sections of code to be repeated provided some Boolean condition remains True.
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