An argument is valid ONLY when both its premises and conclusion are true. True or false?
Summary-An argument mainly depends upon the validity and sound. When the premise of an argument is true then the conclusion is also true but the argument can be or cannot be sounded. Thus we can say an argument with a false premise is also valid.
An argument is valid ONLY when both its premises and conclusion are true. True or false?
A philosophical argument is made up of one or more premises and a conclusion. If the premises lead to the conclusion (that is, if the conclusion must follow from the premises), the argument is valid. True or False
1.The conclusion of a deductive argument can be false. a)True b)False 2. A deductive argument: a)cannot have a false conclusion b)is necessary reasoning c)is a cogent argument d)all of the above 3.If an argument is valid, and all the premises are true, then the conclusion is always true. a)True b)False 4. What sentence is a proposition a)Did you study for this test? b)What is the good-life? c)Know thyself d)Most educated people earn more money.
If an inductively strong argument has a probably false conclusion then which of the following must be true? a. It is valid. b.All of its premises are true. c. Some of its premises are probably true. d. It is sound. e. It is cogent. f. At least one of its premises is probably false. g.All of its premises are necessarily false. h. Some of its premises are necessarily false.
Problem 7: A set of premises and a conclusion are given. Use the valid argument forms listed in Table 2.3.1 to deduce the conclusion from the premises, showing the argument form for each step. Assume all variables are statement variables. a, b. p→q rvs e. S
A valid argument cannot have any false premises
a set of premises and a conclusion are given. Use the valid argument forms listed in Table 2.3.1 to deduce the con- clusion from the premises, giving a reason for each step as in Example 2.3.8. Assume all variables are statement variables a. p b. rVS с. ~s ~t n. или Example 2.3.8 Application: A More Complex Deduction You are about to leave for school in the morning and discover that you don't l glasses. You know the following statements...
Problem 4.16 Use the valid argument forms of this section to deduce the conclusion from the premises
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?...
1) In a good inductive argument, the conclusion can be false, but it is probably true. True False 2) What kind of argument is this: All men are mortal. Socrates is a man. Therefore, Socrates is mortal. Deductive Categorical syllogism Aristelian All of the above 3) An inductive argument: a) is a valid argument b) is a sound argument c) is probable reasoning d) all of the above
5. Symbolize the following argument and prove it is a valid argument. Let B ( x ) = x is a bear; D ( x ) = x is dangerous, and H ( x ) = x is hungry. Every bear that is hungry is dangerous. There is a hungry animal that is not dangerous. Therefore there is an animal that is not a bear. 6. In order to prove an quantificational argument invalid it is only necessary to find a...