26 27 28 select the negation of the following

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Chapter 1 / Exercise 17
Mathematical Practices, Mathematics for Teachers: Activities, Models, and Real-Life Examples
Larson Expert Verified
Select the negation of the following statement. If , then . the sky does not look blue it is night time , and . The sky looks blue it is not night time , and . The sky does not look blue it is not night time If , then . the sky looks blue it is not night time If , then . it is not night time the sky looks blue Problem Set 7 Sections 3.3, 3.4-Dakota Rasimas
27. Write the statement as an equivalent statement that does not use the if...then connective. Remember that is equivalent to p q ~ p q If , then . we go to the movies we buy popcorn Choose the equivalent statement below. .
28. Write the following statement as an equivalent statement that does not use the if-then connective. Remember that p is equivalent to ~p q. If you scratch my back, I'll scratch yours. Choose the correct answer below. q
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26. Write the negation of the statement. If it is not , then it is . blue lettuce Choose the correct negation below.
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Chapter 1 / Exercise 17
Mathematical Practices, Mathematics for Teachers: Activities, Models, and Real-Life Examples
Larson Expert Verified
29. Use truth tables to decide whether the pair of statements is equivalent. ; p q ~ q p Are the statements equivalent? A. The statements are not equivalent. When p is true and q is false, the statements have different truth values. B. The statements are not equivalent. the same truth value. When both p and q are true, the statements have C. The statements are equivalent. The statements have the same truth value for all values of p and q. D. The statements are equivalent. When both p and q are false, the statements have different truth values.
30. and ~ p ~ q ~ q ~ Choose the correct answer below. . The statements are not equivalent . The statements are equivalent Use truth tables to decide whether the pair of statements is equivalent. and ~ r ~ s s Are the statements equivalent? 31. Use a truth table to determine whether the two statements are equivalent. and ~ p ~ q ~ q ~ Choose the correct answer below. . The statements are not equivalent . The statements are equivalent Use truth tables to decide whether the pair of statements is equivalent. and ~ r ~ s s Are the statements equivalent? p r
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