Give an example of proof by construction. For example, prove that for every well-formed formula f...

Give an example of proof by construction.

For example, prove that for every well-formed formula f in propositional logic, an equivalent WFF exists in disjunctive normal form (DNF).
HINT: Every WFF is equivalent to a truth function, and we can construct an equivalent WFF in full DNF for every truth function. Explain how.

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Colby Messinger answered 2 years ago

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Give an example of proof by construction. For example, prove that for every well-formed formula f...

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