Question: 5. (15pts) A formula is valid if and only if it computes True for all its valuations; it is satisfiable if and only if it

5. (15pts) A formula is valid if and only if it

5. (15pts) A formula is valid if and only if it computes True for all its valuations; it is satisfiable if and only if it computes True for at least one of its valuations. Is the formula of the parse tree below valid? Is it satisfiable? Explain. 1

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