Question: Identify the valid inference form (modus ponens, modus tollens etc.). 1. ( P R) v (Q S) 2. ~ (Q S) 3. P R a.

Identify the valid inference form (modus ponens, modus tollens etc.).

1. ( P R) v (Q S)

2. ~ (Q S)

3. P R

a.

Modus Ponens

b.

Disjunctive Syllogism

c.

Constructive Dilemma

d.

Hypothetical Syllogism

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