COMPUTER SCIENCE AND ENGINEERING
SQL
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
True
|
|
|
False
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -All terriers are dogs. All terriers are mammals. Therefore, All mammals are dogs. Both premises of this syllogism are true, while its conclusion is false, so it is clearly invalid.
Detailed explanation-2: -Some categorical syllogisms with two universal sentences (i.e., A or E sentences) as premises, but a particular sentence (i.e., an I or O sentence) as the conclusion are conditionally valid. They are valid if a certain set is not empty. For example, the form AAI-1 and EAO-3 are conditionally valid.
Detailed explanation-3: -Types of Syllogism There are three main types of syllogisms each with distinct qualities: conditional, categorical, and disjunctive.
Detailed explanation-4: -For example, the premises and conclusion can all be A-propositions; in this case its mood is AAA. Thus, AAA-1 represents a syllogism in which the premises and conclusion are A-propositions and the middle term is in Figure 1: All M are P. All S are M. All S are P.