Question: 8
(Choose 1 answer)
(See picture)
A. Modus ponens
B. Modus tollens
C. Hypothetical syllogism
D. Disjunctive syllogism
E. None of the other choices is correct
Recall some rules of inference
Modus ponens
Modus tollens
b← (b← d) v d
¬q^ (p→q) → P
Hypothetical syllogism (p→q) ^ (q →r) → (p →r)
Disjunctive syllogism [(p vq) ^¬p] →q
Determine the rule used in the argument:
"If I wake up early then I will read a book. I woke up early today.
Therefore I will read a book.
