{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

HW 7 Conditionals answers

# HW 7 Conditionals answers - HW 7 Answers 7.7 Note the fact...

This preview shows pages 1–4. Sign up to view the full content.

HW 7 Answers 7.7 Note the fact that the two sentences are not tautologically equivalent, but that the first sentence is a tautological consequence of the second. 7.8 The sentences in 7.8 are identical to those in 7.7, with the exception that we see here the biconditonal rather than the conditional symbol. As you can observe from the truth table, the two sentences are equivalencies. The associativity rule holds for the biconditional connective, but not for the conditional one.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
7.16 This exercise asks you to give three objects a name, so that all sentences are true in the world. The only problem is that you need to remember that the truth value of the biconditional connective is T if both sentences are false. So, in the world below the sentence Tet(b) Tet(c) is true, even though both Tet(b) and Tet(c) are false. [there may be other solutions that are correct as well]
7.18 The following are correct translations: 1. This sentence is of the form if P then (Q R) .

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern