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symbolic form of the proposition

symbolic form of the proposition

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Give the correct answers. (Numbers 2 and 3 are the pictures shown)

1. Determine if the proporsotion (p→q) ↔ (q ∨ ¬p) is a tautology, contradiction or contingency.

Which of the following is the symbolic form of the proposition "Hiking is not safe of the trail whenever grizzly bears have not been seen in the area and berries are ripe along the trail"? Select one: a. (q -> (p v r)) b. (-p a r) -> -q c. (-q -> (-p ^ r)) d. (-p v r) -> ¬q
Transcribed Image Text:Which of the following is the symbolic form of the proposition "Hiking is not safe of the trail whenever grizzly bears have not been seen in the area and berries are ripe along the trail"? Select one: a. (q -> (p v r)) b. (-p a r) -> -q c. (-q -> (-p ^ r)) d. (-p v r) -> ¬q
Which of the following is the symbolic form of the proposition "For hiking on the trail to be safe, it is necessary that berries not be ripe along the trail and for grizzly bears not to have been seen in the area"? Select one: a. (-p A q) -> -r b. (q -> (-r ^ -p)) c. (-rA -p) -> q d. (q -> (-r v ¬p))
Transcribed Image Text:Which of the following is the symbolic form of the proposition "For hiking on the trail to be safe, it is necessary that berries not be ripe along the trail and for grizzly bears not to have been seen in the area"? Select one: a. (-p A q) -> -r b. (q -> (-r ^ -p)) c. (-rA -p) -> q d. (q -> (-r v ¬p))
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