# intro to logic inference rules

*label*Humanities

*timer*Asked: Apr 19th, 2016

*account_balance_wallet*$5

**Question description**

Exercise 43 ... (For-Credit of 10 points)

[43-1] Explain the basic difference between the two subsets of inference rules.

Derive the conclusion from the given premises (for 4 exercises below).

(extracted mainly from textbook Exercise 4-8 and elsewhere)

==========================================================

[43-2]

C: ~B

P1: A & (B -> C)

P2: ~(C & A)

-------------------------

===========================================================

[43-3]

C: C

P1: (A & B) V (C & D)

P2: ~A

-----------------------------

===========================================================

[43-4]

C: ~B

P1: (A & B) -> C

P2: A & ~C

----------------------------

===========================================================

[43-5]

(Hint: use Equiv to break P1, an equivalence, into a conjunction of 2 conditionals)

C: ~U

P1: (A & U) <-> ~R

P2: ~(~R V ~A)

---------------------------

## Tutor Answer

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors