Question: Construct natural deduction proofs demonstrating the following. Be sure to handwrite your solutions, and properly annotate your proof to show your working. ( a )

Construct natural deduction proofs demonstrating the following. Be sure to handwrite your solutions, and properly annotate your proof to show your working.
(a)((C -> E)(C ->E)) C E;
(b)(((A B)-> C)((A B)-> C))(B -> C);
(c)(((Q ->P)(Q R))->(P -> R)).
Construct natural deduction proofs demonstrating the following. Be sure to handwrite

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