The Negation

The negation operator, obviously, will be used to negate a statement.
Its symbol is: and it is read as "not".

And it makes sense!

Try to read this:"If not x = 3 implies that x/(x-3) is defined"
Indeed, if x is not 3, then our function: Is indeed defined.

You have now finished the first part of mathematics: Logic. There are some more operators, but you probably won't use them, or if you will, it'll be an one in 100 chance. So, we've left them out.

It's time to wrap up.
Chapter Review - Logic