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,bZa, 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 aZa \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 aZa \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,cZa, b, c \in \mathbb Z, it follows that:

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

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