Logic

What is the name of the logical fallacy that describes an argument in which facts are selectively chosen to support a predetermined conclusion? Is it "begging the question"? If not, what is it? (And, no, this isn't an exam question or paper topic; I'm a professional writer trying to remember something he was taught 30 years ago in a writing class.)

Comments

When someone does use a highly selective set of examples to support their conclusion (Wittgenstein referred to this as a matter of relying on too narrow a diet of examples) a person might be begging the question --which, technically, is assuming the very thesis you are seeking to support or prove. But probably the informal fallacy you may be looking for is simply called a hasty generalization: e.g. reaching a conclusion inductively on the basis of too few cases, as when I might observe a dozen white swans and draw the conclusion that 'All swains are white,' notwithstanding the fact that some swans are black.

As an aside, I think that the term 'begging the question' is now used (at least by most of my students) not in its technical, prior use (here is the St. Martin's Dictionary of Philosophy definition: "The procedure of taking for granted in a statement or argument, precisely what is in dispute"). Many students seem to use it to mean that an event / statement / argument calls for questioning, as in: 'Wittgenstein's remarks beg many questions' meaning 'Wittgenstein's remarks need to be questioned / investigated / challenged.' 30 years ago, a writing class instructor would correct that usage, but today I am not so sure.

Good wishes in your writing, professional and otherwise!

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