Question

QUESTION 12 The justification in a proof is the conclusion of a valid argument form derived from premises O True O False QUESTION 13 Two propositions may be consistent without being logically equivalent. O True O False QUESTION 14 When the lines in a proof are instances of valid logical forms, we can derive the conclusion and justify our derivation by referring to logical rules of implication. O True False QUESTION 44 What is the conclusion of the following syllogism? All first-degree murders involve malice aforethought, so no crimes of passion are first-degree murders because no crimes of passion involve malice aforethought." 0 a. All first-degree murders involve malice aforethought. O b. No crimes of passion are first-degree murders. O c. No crimes of passion are things that involve malice aforethought. O d. No crimes of passion involve malice aforethought. QUESTION 45 What is the major term in the following syllogism? "All first-degree murders involve malice aforethought, so no crimes of passion are first-degree murders because no crimes of passion involve malice aforethought." 0 a, first degree murders Ob.malice aforethought O C. crimes O d. crimes of passion

Answer 1

12.

A proof establishes the validity of an argument.The reason is that, in a proof.every line must be true if the preceding lines are true.ln particular.the truth of the first lines,the premises,implies the truth of the last line, the conclusion.Hence a proof shows that an argument is Valid.