Humanities Homework Help

I need help solving proofs from Exercise 5-7 #8-23 (on page 59 of the PDF NOT Textbook page # like 271)

Construct the deductions for each of the following proofs. By the given premises, use the rules for deduction to get to the “:.” answer. For each line provide the rule used & number the lines.

FOR EXAMPLE:

1. P -> Q (Premise)

2. R -> S (Premise)

3. Q -> ~S (Premise) /:. P -> ~R

Answer:

4. P -> ~S CA 1,3

5. ~S -> ~R CONTR 2

:. 6. P -> ~R CA 4,6