Exam 3: Logic

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Use DeMorganʹs laws or a truth table to determine whether the two statements are equivalent. - p(qr),p(qr)p \rightarrow ( q \vee r ) , \sim p \rightarrow ( q \wedge r )

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Determine whether the statement is a self-contradiction, an implication, a tautology (that is not also an implication), or none of these. - p(qp)p \rightarrow(q \vee p)

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Translate the statement into symbols then construct a truth table. - p= \mathrm{p}= Parker will work in an office. q \mathrm{q} = Parker will work as a forest ranger. r= \mathrm{r}= Parker will work as a landscape architect. Parker will not work in an office, but he will work as a forest ranger or a landscape architect.

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Indicate whether the statement is a simple or a compound statement. If it is a compound statement, indicate whether it is a negation, conjunction, disjunction, conditional, or biconditional by using both the word and its appropriate symbol. -The apartment is rented or it is available.

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Use DeMorganʹs laws or a truth table to determine whether the two statements are equivalent. - (pq)(qp),(pq) (p \rightarrow q) \vee(q \rightarrow p),(p \leftrightarrow q)

(Multiple Choice)
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Use the information given in the chart or graph to determine the truth values of the simple statements. Then determine the truth value of the compound statement given. - Planet X \bullet Moon 1 o Moon 2 Diameter of moons: May have: o Moon 3 o 3-8 o water ice \circ Moon 4 \circ9-14 \bullet atmosphere 0 Moon 5 \bullet15-24 o both Moon 1 has a smaller diameter than Moon 3 and Moon 5 may have water ice, if and only if Moon 2 may have both water ice and an atmosphere.

(True/False)
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Write an equivalent sentence for the statement. -If the box is in the mail, then it should be here by tomorrow. (Hint: Use the fact that p → q is Equivalent to ~p ∨ q.)

(Multiple Choice)
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Use DeMorganʹs laws or a truth table to determine whether the two statements are equivalent. - (pq)r,p(qr)( p \vee q ) \vee r , p \vee ( q \vee r )

(Multiple Choice)
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Write the indicated statement. Use De Morgan's Laws if necessary. -If you like me, then I like you. Converse

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Determine which, if any, of the three statements are equivalent. -I. Gasoline costs $1.99 per gallon if and only if you live in Cook County. II. You do not live in Cook County and gasoline does not cost $1.99 per gallon. III. If you do not live in Cook County then gasoline does not cost $1.99 per gallon and if gasoline Does not cost $1.99 per gallon then you do not live in Cook County.

(Multiple Choice)
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Write the compound statement in words. -Let r=\mathrm { r } = "The puppy is trained." = "The puppy behaves well." = "His owners are happy." \sim(p\rightarrowq)

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Let p represent a true statement, while q and r represent false statements. Find the truth value of the compound statement. - (pq)(rp)\sim ( \sim p \wedge \sim q ) \vee ( \sim r \vee \sim p )

(True/False)
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Write an equivalent sentence for the statement. -If you canʹt take the heat, stay out of the sun. (Hint: Use the fact that p → q is equivalent to ~p ∨ q.)

(Multiple Choice)
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Construct a truth table for the statement. - r(cq)r \vee \sim(c \wedge q)

(Multiple Choice)
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Let p represent the statement, ʺJim plays footballʺ, and let q represent ʺMichael plays basketballʺ. Convert the compound statements into symbols. -Jim plays football and Michael plays basketball.

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Construct a truth table for the statement. - (pt)(pt)(p \wedge t) \vee(\sim p \wedge \sim t)

(Multiple Choice)
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Write the compound statement in symbols. Then construct a truth table for the symbolic statement. Let r = ʺThe food is good,ʺ p = ʺI eat too much,ʺ q = ʺIʹll exercise.ʺ -If I eat too much, then I?ll exercise.

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Indicate whether the statement is a simple or a compound statement. If it is a compound statement, indicate whether it is a negation, conjunction, disjunction, conditional, or biconditional by using both the word and its appropriate symbol. -It is false that whales are fish and bats are birds.

(Multiple Choice)
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Determine the truth value for the simple statement. Then use these truth values to determine the truth value of the compound statement. Use the chart or graph when provided. -Determine the truth value for the simple statement. Then use these truth values to determine the truth value of the compound statement. Use the chart or graph when provided. -   Thirty-one percent of people watch 7 hours of TV each week or 6% do not watch 9 or more hours of TV each week, and 18% watch 8 hours of TV each week. Thirty-one percent of people watch 7 hours of TV each week or 6% do not watch 9 or more hours of TV each week, and 18% watch 8 hours of TV each week.

(True/False)
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Determine the truth value for the simple statement. Then use these truth values to determine the truth value of the compound statement. Use the chart or graph when provided. -9 + 8 = 20 - 3 or 36 ÷ 3 = 2 + 6

(True/False)
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