De Sophisticis Elenchis is the sixth of Aristotle's six texts on logic which are collectively known as the Organon ("Instrument"). In De Sophisticis Elenchis 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.