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Persuasive definition – purporting to use the "true" or "commonly accepted" meaning of a term while, in reality, using an uncommon or altered definition. (cf. the if-by-whiskey fallacy) Ecological fallacy – inferring about the nature of an entity based solely upon aggregate statistics collected for the group to which that entity belongs.
Even non-deductive arguments can be said to be fallacious: for example, an inductive argument that incorrectly applies principles of probability or causality. But "since deductive arguments depend on formal properties and inductive arguments don't, formal fallacies apply only to deductive arguments". [5]
Because it applies to the argument's form, as opposed to the argument's content, it is classified as a formal fallacy. Equivocation of the middle term is a frequently cited source of a fourth term being added to a syllogism; both of the equivocation examples above affect the middle term of the syllogism.
For example: No fish are dogs, and no dogs can fly, therefore all fish can fly. The only thing that can be properly inferred from these premises is that some things that are not fish cannot fly, provided that dogs exist. Or: We don't read that trash. People who read that trash don't appreciate real literature. Therefore, we appreciate real ...
Some writers use the term slippery slope to refer to one kind of argument but not the other, but don't agree on which one, whilst others use the term to refer to both. So, for example: Christopher Tindale gives a definition that only fits the causal type. He says: "Slippery Slope reasoning is a type of negative reasoning from consequences ...
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Argument from fallacy is the formal fallacy of analyzing an argument and inferring that, since it contains a fallacy, its conclusion must be false. [1] It is also called argument to logic ( argumentum ad logicam ), the fallacy fallacy , [ 2 ] the fallacist's fallacy , [ 3 ] and the bad reasons fallacy .
Each "bad argument" is discussed on a double page, with a written explanation on one side and an illustration on the other. The book is written using terse prose that relies heavily on the use of examples. [3] [4] The illustrations are done in a woodcut style and are said to be inspired by characters from Lewis Carroll's stories and poems. [5]