Question: Using the assignment axiom what is the precondition for the following statements and postconditions. Statement: x: = x x y Postcondition: x x y =

Using the assignment axiom what is the precondition for the following statements and postconditions.
Statement: x:=x
x y
Postcondition: x
x y=C
a.{xy}
b.{y =2C}
c.{C}
d{x = C}

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