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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 y

Postcondition: x

x y

=

. {

}

. {

= 2

}

. {

}

{

=

}

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