Question 617599
Question is a little vague. What kind of operations are you referring to?


If you are referring to the four basic operations (+,-,x,/), they satisfy certain properties:


Binary: two inputs or "arguments" required.


Commutative (+,x only): a*b = b*a for all real a,b. Division and subtraction are said to be anti-commutative: a*b = -b*a.


Closed under real numbers: The operation yields a real result (unless dividing by zero).