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Thanks Quizmonster. I've had a quick read of that, particularly the sections on Deductive Fallacies and Other Systems of Classification. I have two queries:
1. Under Deductive Fallacies, the article includes the following :
• "In philosophy, the term logical fallacy properly refers to a formal fallacy: a flaw in the structure of a deductive argument which renders the argument invalid. However, it is often used more generally in informal discourse to mean an argument which is problematic for any reason, and thus encompasses informal fallacies as well as formal fallacies.
So, if the term 'logical fallacies' can include formal and informal fallacies, does this mean that all fallacies are logical fallacies and therefore the word 'logical' is superfluous?
2. In the section on Other Classifications I see that it was Bacon who used the term IDOLA. The article says:
• "Of other classifications of fallacies in general the most famous are those of Francis Bacon and J. S. Mill. Bacon (Novum Organum, Aph. 33, 38 sqq.) divided fallacies into four Idola (Idols, i.e. False Appearances), which summarize the various kinds of mistakes to which the human intellect is prone."
Again, does this mean that IDOLA means any type of fallacy, not just Logical Fallacies?