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Question 617599: what are the rules governing operations of real numbers?
Answer by richard1234(7193)   (Show Source):
You can put this solution on YOUR website! 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).
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