1.   Which law states that if a conditional is true and its hypothesis is true, then the conclusion is true?
    A. Law of Conditional B. Law of Deductive Reasoning
    C. Law of Syllogism D. Law of Detachment
    Hint

  2.   The Law of Detachment and other laws of logic can be used to provide a system for reaching logical conclusions, called _____________.
    A. inductive reasoning B. reasonable doubt
    C. deductive reasoning D. detachment reasoning
    Hint

  3.   Which statement follows from statements (1) and (2) by the Law of Syllogism?

(1) If an object is a square, then it is a rhombus.
(2) If an object is a rhombus, then it is an equilateral.

    A. If an object is an equilateral, then it is a square. B. An object is a rhombus.
    C. If an object is a square, then it is an equilateral. D. An object is a square.
    Hint

  4.   ''If two numbers are even, then their sum is even'' is a true conditional, and 8 and 24 are even numbers. Use the Law of Detachment to reach a logical conclusion.
    A. If the numbers 8 and 24 are odd, then their sum is 32.
    B. The sum of 8 and 24 must be odd.
    C. The sum of 8 and 24 must be even.
    D. If the numbers 8 and 24 are even, then their sum is 32.
    Hint

  5.   Which statement follows from (1) and (2) by the Law of Syllogism?

(1) If two angles form a linear pair, then they are supplementary.

(2) If two angles are supplementary, then the sum of their measures is 180.

    A. Supplementary angles form a linear pair.
    B. The measures of supplementary angles add up to 180.
    C. The sum of the measures of the angles in a linear pair is 180.
    D. A linear pair is formed by supplementary angles.
    Hint



Glencoe
The McGraw-Hill Companies