Numbers

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From the archives (2018). Early writing, preserved as-is.

Numbers

These are the basic properties of numbers we use on a day-to-day basis. They may seem obvious at first, but sit tight it will get complicated.

The rules of addition are outlined as follow:

Commutative Law for Addition

For any a,b∈Za, b \in \mathbb Z, it follows that:

a+b=b+aa + b = b + a

This states that the order in which you add two numbers does not matter.

Existence of an Additive Identity

For any a∈Za \in \mathbb Z, it follows that:

a+0=0+a=aa + 0 = 0 + a = a

This states that there is some number you can add to any number that does not alter the result.

Existence of Additive Inverses

For any a∈Za \in \mathbb Z, it follows that:

a+(−a)=(−a)+a=0a + (-a) = (-a) + a = 0

This means that any numbers has another number that can be added to give you zero.

Associative Law for Addition

For any a,b,c∈Za, b, c \in \mathbb Z, it follows that:

(a+b)+c=a+(b+c)(a + b) + c = a + (b + c)

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