I. Argumentum ad Ignorantiam: (appeal to ignorance) the fallacy that a proposition is true simply on the basis that it has not been proved false or that it is false simply because it has not been proved true. This error in reasoning is often expressed with influential rhetoric.
argumentum ad verecundiam. (also known as: argument from authority, appeal to false authority, appeal to unqualified authority, argument from false authority, ipse dixit) Description: Using an authority as evidence in your argument when the authority is not really an authority on the facts relevant to the argument.
Begging the Question. petitio principii. (also known as: assuming the initial point, assuming the answer, chicken and the egg argument, circulus in probando, circular reasoning [form of], vicious circle) Description: Any form of argument where the conclusion is assumed in one of the premises.
Weak Analogy (also known as: bad analogy, false analogy, faulty analogy, questionable analogy, argument from spurious similarity, false metaphor) Description: When an analogy is used to prove or disprove an argument, but the analogy is too dissimilar to be effective, that is, it is unlike the argument more than it is like the argument.
Abstract: The fallacy of false cause and its forms as non causa pro causa and post hoc ergo propter hoc is disussed with examples. fallacy navigator I. False Cause: the fallacy committed when an argument mistakenly attempt to establish a causal connection. There are two basic interrelated kinds.
(also known as: argument from small numbers, statistics of small numbers, insufficient statistics, argument by generalization, faulty generalization, hasty induction, inductive generalization, insufficient sample, lonely fact fallacy, over generality, overgeneralization, unrepresentative sample)
Attempting to redirect the argument to another issue that to which the person doing the redirecting can better respond. While it is similar to the avoiding the issue fallacy, the red herring is a deliberate diversion of attention with the intention of trying to abandon the original argument.
In informal logic, slippery slope is a fallacy in which a course of action is objected to on the grounds that once taken it will lead to additional actions until some undesirable consequence results. Also known as the slippery slope argument and the domino fallacy.