Assertion: argument's premise | /r/HasProperty | false
Facets:
value: obviously
type: DEGREE
value: after all
type: TEMPORAL
Source sentences:
text: The first premise can be false –
text: Another feature of an argument based on false premises that can bedevil critics, is that its conclusion can in fact be true.
text: "One or more premises of this argument are false, so the conclusion is false.
text: Since the conclusion of the argument is false, all its premises are false.
text: Hence, it is impossible for the premises to be true and the conclusion to be false.
text: They may show that the second premise is false.
text: Byrne objects that this premise is likely to be false if there is no God and thus arguments that assume it appear circular.
text: Here the argument is invalid and the premises are also false.
text: Here both the premises are false but the argument is valid.
text: However, formal logic makes no such guarantee if any premise is false; the conclusion can be either true or false.
text: These are best strategies for arguing that a premise or assumption is false: Describe a personal experience you've had that shows it is false.
text: If it turns out that the argument has a false premise and so is unsound, this won’t change the fact that it is valid.
text: An argument is valid if it would be inconsistent for all its premises to be true and its conclusion to be false.
text: Sometimes inductive arguments are understood narrowly, as inductive generalizations, but they are more commonly said to be arguments in which the premises of the argument are only probable or plausible, leaving open the possibility that the premises are false.
text: However, as Craig (2002) points out, although this may weaken the argument were the objection sound, it is not fatal to it unless there is good reason to think that premise 1 actually is false.
text: Of course, relevant premises being false merely undercuts the relevant schemas in present form—it does not necessarily refute either the basic design intuition or other forms of design arguments.
text: Thus, the premise must original premise must be false, but the second premise is clearly true leaving the conclusion in a state of illogic.
text: The premise itself may be either true or false but never wrong.
text: Regarding (2), a premise can be justified or warranted at a time even if we later learn that the premise was false, and it can be justified if we are reasoning about what would have happened even when we know it didn’t happen.
text: : at least one premise is false, and conclusion does not follow from the premises.
text: You might ask, “The premises of this argument are false, so how can the argument be good?
text: We often don’t know, after all, whether our premises are true or false.
text: 10) the premises and conclusion are all false
text: 11) the premises are false
text: 15) at least one premise is false
text: 6) false; the premises of a valid argument can in fact all be false; the conclusion of a valid argument can be false; the only thing required is that if the premises were true, the conclusion could not be false.
text: 15) false; the premises of a valid argument may also be false
text: In other words, if your argument is valid then there’s no way for the premises to all be true and the conclusion to be false.
text: Unless a premise is just obviously false (i.e. “All tigers are blue”) the best way to do this is probably to try and come up with counterexamples.
text: This is a good argument, despite the fact that both its premises are false, because the conclusion follows from the premises: if the premises were true the conclusion would have to be true.
text: Under a given interpretation, a valid argument may have false premises that render it inconclusive: the conclusion of a valid argument with one or more false premises may be either true or false.
text: A valid argument can have false premises.
text: 11) false; it is possible for a valid argument to have false premises