Question: Prove the following natural deduction by using a proof tree (De Morgan) (De Morgan) (hypothetical syllogism) (constructive dilemma) (destructive dilemma) (a lesser form of ex

Prove the following natural deduction by using a proof tree

Prove the following natural deduction by using a proof tree (De Morgan)

(De Morgan) (De Morgan) (hypothetical syllogism) (constructive dilemma) (destructive dilemma) (a "lesser" form of ex falso quodlibet)

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