Dicto simpliciter (Lat.: I speak simply) fallacies are deductive logical fallacies that occur in statistical syllogisms. A dicto simpliciter occurs when an acceptable exception is ignored or eliminated. For instance, the appropriateness of using opiates is dependant on the presence of extreme pain. To justify the recreational use of opiates by referring to a cancer patient or to justify arresting said cancer patient by comparing him to the recreational user would be a dicto simpliciter. There are several meanings for the word deduction: Natural deduction Deductive reasoning Deductions in terms of taxation, such as Itemized deductions Standard deduction See also: Logic Venn diagram Inductive reasoning Both statistics and the scientific method rely on both induction and deduction. ... 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. ... A statistical syllogism is an inductive syllogism. ...

There are exactly two kinds of dicto simpliciter:

• Accident -- a dicto simpliciter ad dictum secundum quid (Where an acceptable exception is ignored.)
• Converse accident -- a dicto secundum quid ad dictum simpliciter (Where an acceptable exception is eliminated or simplified.)

For inductive fallacies that may affect the soundness of some statistical syllogisms, see faulty generalization. The logical fallacy of accident, also called destroying the exception or a dicto simpliciter ad dictum secundum quid, is a deductive fallacy occurring in statistical syllogisms (an argument based on a generalization) when an exception to the generalization is ignored. ... The logical fallacy of converse accident (also called reverse accident, destroying the exception or a dicto secundum quid ad dictum simpliciter) is a deductive fallacy that can occur in a statistical syllogism when an exception to a generalization is wrongly called for. ... The term induction has more than one meaning in the English language. ... (This article discusses the soundess notion of informal logic. ... A faulty generalization, also known as an inductive fallacy, is any of several errors of inductive inference: Hasty generalization is the fallacy of examining just one or very few examples or studying a single case, and generalizing that to be representative of the whole class of objects or phenomena. ...

• Card stacking often uses dicto simpliciter.