- #1

benno

- 4

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Suppose in the course of a derivation there is a mathematical statement of the form

A+1=B+C

then "+" is an operator acting on inputs "B" and "C".

Question 1: Is the output of the operation "A" or the expression "B+C"?

The reason I think the output may be "B+C" is because in the statement X=(Y+Z)+W, wouldn't the output of the first addition be Y+Z?

Question 2: Since the equals sign "=" has two inputs, the left hand side (LHS) and right hand side (RHS) expressions, is it also an operator?

How does one distinguish whether A+1 is the input or B+C is the input?

If "=" is an operator, what is the output? If "=" is not an operator, what is it?