A
valid argument must be a sound argument, but a sound argument is not
necessarily a valid argument.
valid argument must be a sound argument, but a sound argument is not
necessarily a valid argument.
举一反三
- He is so strong that he can lift 100 kilograms.（ ） 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
- 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
- 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
- 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