The Sophistical Elenchi is the sixth of Aristotle's six texts on logic which are collectively known as the Organon ("Instrument"). In the Sophistical Elenchi Aristotle identifies 13 falacies. Verbal Fallacies are: Accent or Emphasis; Amphibology; Equivocation; Composition; Division and Figure of Speech. Material Fallacies are: Accident; Affirming the Consequent; Converse Accident; Irrelevant Conclusion; Begging the Question; False Cause and Fallacy of Many Questions. (Adapted from Wikipedia)