A: N = not an argument
B: A = an argument that is neither valid nor sound
C: V = an argument that is valid but not sound
D: B = an argument that is both valid and sound
举一反三
- Mount Everest is taller than Mount Kilimanjaro. No anthill is as tall as Mount Kilimanjaro. Therefore， Mount Everest is taller than any anthill.How would you describe the above example？（ ） A: N = not an argument B: A = an argument that is neither valid nor sound C: V = an argument that is valid but not sound D: B = an argument that is both valid and sound
- A<br/>valid argument must be a sound argument, but a sound argument is not<br/>necessarily a valid argument.
- Consider the following argument: “He is not a terrorist, so he must be a counterterrorist under cover.” Which of the following suppressed premises could be added to this argument to make it valid?
- An argument cannot ever be valid (in the technical sense used in this course) when
- All valid arguments are sound arguments.
内容
- 0
Determine<br/>whether the following argument is valid or not. “A convertible<br/>car is fun to drive. Isaac’s car is not a convertible.<br/>Therefore, Isaac’s car is not fun to drive.” ( ) A: valid B: invalid
- 1
Which of the following is most accurate? A: An argument may have either an unstated premise or an unstated conclusion. B: An argument may have an unstated premise, but it can't have an unstated conclusion. C: An argument may have an unstated conclusion, but it can't have an unstated premise. D: An argument may have neither an unstated premise nor an unstated conclusion.
- 2
First impressions really do _____. () A: is valid B: are sound C: vital D: count
- 3
When writing an argument, Tom could not find a source that supports his argument, so he made one up in his essay. This is not plagiarism.
- 4
Determine<br/>whether the following argument is valid or not. “Every computer<br/>science major takes discrete mathematics. Natasha is taking discrete<br/>mathematics. Therefore, Natasha is a computer science major.” ( ) A: valid B: invalid