What is the definition of a logical fallacy?

A logical fallacy is defined as an error in reasoning that invalidates an argument. This means that the argument may appear convincing or plausible at first glance, but upon closer examination, it fails to hold up due to flaws in its logic or structure. Recognizing logical fallacies is essential for critical thinking, as it allows individuals to evaluate the strength of arguments based on sound reasoning rather than emotional appeal or misleading tactics. By identifying these errors, one can better navigate discussions and debates, ensuring that conclusions are based on valid logic rather than flawed reasoning.