Question

Multiple Choice Question 1. You can recognize a contradiction from the statement's truth table because: A....

Multiple Choice Question

1. You can recognize a contradiction from the statement's truth table because:

A. It is not possible to recognize a contradiction from the truth table.

B. Most of the entries in the final column will be "true"..

C. The entries in the final column will all be "false".

D. Most of the entries in the final column will be "false".

E. The entries in the final column will all be "true".

Question 2

You are writing a program that checks if the user has entered some text in the text box labeled "first name" AND that the user has also entered some text in the text box labeled "last name".

If the user has not successfully completed this, the user gets an error message.

De Morgan's laws say that an error message should be generated when:

"first name" box is empty ______________ (fill in the blank) "last name" box is empty

A. AND

B. OR

Question 3

You can recognize a tautology from the statement's truth table because:

A. Most of the entries in the final column will be false.

B. The entries in the final column will all be true.

C. It is not possible to recognize a tautology from the truth table.

D. The entries in the final column will all be false.

E. Most of the entries in the final column will be true.

Question 4

Assume that you have the truth tables for two statements, and that the truth tables for the statements are both set up in the same order. You can prove that two statements are logically equivalent from the two statements' truth table because:

A. It is not possible to tell if two statements are logically equivalent from truth tables.

B. If the statements are equivalent, the final columns of the two truth tables will be all "false".

C. If the statements are equivalent, the final columns of the two truth tables will be all "true".

D. If the statements are equivalent, the final columns of the two truth tables will be the same.

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Answer #1

Inlhich alwas Con tra dction Foue Aris wlen A) AND Tau hlhich atuwa True (E) KA) NOt Possible to teil

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