Exercise 44 … (For-Credit of 6 points)

Derive the conclusion from the premises:

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Exercise designed to appreciate comparative merit of CP:

with the same argument below,

do the 1st proof without using CP; &

do the 2nd proof by using CP:

C: A -> F

1: ~F -> ~H

2: ~A V H

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Exercise to compare two CP’s, one of which employs CP

as part of the whole process:

with the same argument below,

do the 1st proof by using CP with ~X as AP

do the 2nd proof by using CP with Y as AP; & then Contra

C: ~X -> ~Y

1: (J V Q) -> X

2: Y -> (J & N)

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Exercise designed to see CP as a self-contained module:

use CP to the get the 1st part of conjunction;

use the conditional as a premise to get the 2nd part; &

be careful not to take the 2nd part of conjunction from CP

C: (D -> E) & ~K

1: ~D V ~K

2: ~E -> K

3: (~D V E) -> ~K

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Exercise designed to employ CP twice to get an equivalence

do the 1st proof for M -> G by CP;

do the 2nd proof for G -> M by CP;

combine them by Conj; &

then use Equiv

C: M <-> G

1: M V ~G

2: M -> ~Y

3: ~G -> Y

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Exercise designed to appreciate comparative merit of CP writing homework help