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This question was created from Problem Set 4F.docx https://www.coursehero.com/file/33267682/Problem-Set-4Fdocx/

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please answer 1 through 10

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Problem Set 4
Part 1 (one point total). Use the following proof to answer the questions below.
(1) P->Q&R
A
2
(2) P
A
(a)
1,2
(3) Q&R
1,2 - E
(b)
1.2
(4) Q
3 &E
(c)
1,2
(5) R
3 &E
1,2
(6) P&R
2,5 &l
(d)
1,2
(7) Q&(P&R)
4,6 &l
1. What rule is used in the line marked with (a)?
2. What assumption(s) are in the assumption set for the line marked (a)?
3. What is the line number for line marked (a)?
4. What is the annotation of line marked with (b)?
5. What is the assumption set of the line marked with (b)?
6. What rule is used in the line marked (b)?
7. What is the line number of the line marked with (c)?
8. What is the rule used on the line marked (c) and what line does the rule depend upon?
9. What rule is used in the line marked (d) and what line(s) is(are) that rule used on?
10. Explain how the assumption set from line (d) is determined.

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