Assertion: valid argument | /r/HasAspect | false conclusion
Facets:
Source sentences:
text: If a valid argument has a false conclusion, then one of its premises must be false.
text: What makes this a valid argument is not that it has true premises and a true conclusion, but the logical necessity of the conclusion, given the two premises.
text: 5) false; a valid argument can have a false conclusion, but that is never sufficient to determine its validity.