Exercises 4
Written by Dr. Elihu Carranza   
Tuesday, 19 August 2008 20:05

Exercise 4.0: Additional Argument Forms

Instructions: Fill in the blanks in each statement with the letter of the correct answer.

a disjunctive syllogism f transitive syllogism
b affirming the consequent g modus ponens
c complete h modus tollens
d denying the antecedent i interdefinable
e dilemma j valid
1 _____ has an implication as a premise and the antecedent of the implication as a second premise from which one concludes the consequent of the first.
2 The form of argument in which the 1st premise is: x implies y, and the 2nd is: y is false; therefore: x is false, is known _____ .
3 The following argument form exemplifies the fallacy of _____ : x implies y, and y is true; therefore, x is true.
4 Argument Form: x implies y, and x is false; therefore, y is false, is the fallacy of _____ .
5 The _____ form consists of premises: x + y, and x is false, to conclude: y is true.
6 The argument form (x < y) (z < w) (x + z) < (y + w) is known as a(n) _____ .
7 If the first two premises of a dilemma are not _____ inferences, the dilemma fails.
8 The disjunction premise of a dilemma must be a _____ disjunction or the dilemma fails.
9 The formula: (xy)' = (x' + y') shows that conjunction and disjunction are _____
10 The implication (x < y) (y < z) < (x < z) is known as _____ .
 
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