Someone might choose to rely on a particular implicit premise because it is evident to all participants. Or, someone might decide to rely on an implicit false premise while giving a speech because it will be harder for listeners to notice problems with it.
MORE IDEAS FROM False Premise: When Arguments Are Built on Bad Foundations - Effectiviology
... is a faulty assumption that becomes the basis of an argument and makes it logically unsound. For example, all birds can fly. Penguins can't fly. Therefore, penguins aren't birds. The premise that all birds can fly is false since some birds can't fly.
A false premise underpins many logical fallacies, making it essential to understand them.
When you respond to the use of false premises, you should generally call them out as false, explain why they're false, and how them being false invalidates the argument.
A logical fallacy is reasoning that contains a flaw.
Many logical fallacies rely on false premises:
The belief bias is a cognitive bias that causes people to over-rely on preexisting beliefs and knowledge when evaluating the conclusions of an argument, instead of properly considering the argument’s content and structure.
Premise 1: I can’t explain or imagine how proposition X can be true.
Premise 2: if a certain proposition is true, then I must be able to explain or imagine how that can be.
Conclusions: proposition X is false.
While the premises may be true in an argument, the conclusion may or may not be correct, making the argument invalid. Example of an incorrect argument: Some New Yorkers are rude, some of them are artists, therefore some artists are rude.
A counterexample method is a powerful way to prove an argument’s conclusion to be invalid. You can use this method by: isolating the argument form and then constructing an argument with the same form that is obviously invalid.
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