Arity

The term arity (English arity, " politeness ") stands for the number of arguments of a link, a picture or an operator or in computer science for the number of parameters of functions, procedures or methods.

Digit links require only one argument. Example is the modulus function (absolute value) of a number.

Two-digit shortcuts require two arguments. Examples of double-digit shortcuts are about the arithmetic operations of addition, subtraction, multiplication, or division, or the logical operations and (logical ) or or (logical ).

One - digit shortcut, so is a picture with arguments:

For example, a binary operation.

For especially:

So then

In addition, because

A null digit shortcut always as a constant map

Be considered. This figure can again be interpreted as the constant.

For example, can also be taken simply for the link.

Example

As an illustrative example, the algebraic structure of Boolean algebra are used, which combines all these aspects in itself. It has the two binary operations union and intersection, complement and the digit zero two binary operations, constants and

• Algebra
• Logic
• Mathematical concept