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Find the weakest precondition for the following statements and post-conditions. wp(x=x-2, {x => 0 and odd(x)} Also, one more please! wp(q=q/2{q=>1 and q is power

Find the weakest precondition for the following statements and post-conditions.

wp(x=x-2, {x => 0 and odd(x)}

Also, one more please!

wp(q=q/2{q=>1 and q is power of 2}

**note that '=>' used above means greater than or equal to, thanks!

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