’Collection of papers... concentrate almost exclusively on formal logic...... contain much that would in recent years be discussed under the heading of formal logic’ Bibliographie De la Philosophie

• Contents: Introduction; The logic of Greek sophistry; The roots of informal logic in Plato; Aristotle and informal logic; Forms of argumentation in medieval dialectic; The Port Royal Logic; The Logick of Isaac Watts; Whately and the study of fallacious reasoning; Jeremy Bentham’s Handbook of Political Fallacies; Mill on inference and fallacies; Kant and informal logic; Informal logic in the twentieth century; Index of names.

’Collection of papers... concentrate almost exclusively on formal logic...... contain much that would in recent years be discussed under the heading of formal logic’ Bibliographie De la Philosophie

• Contents: Introduction; The logic of Greek sophistry; The roots of informal logic in Plato; Aristotle and informal logic; Forms of argumentation in medieval dialectic; The Port Royal Logic; The Logick of Isaac Watts; Whately and the study of fallacious reasoning; Jeremy Bentham’s Handbook of Political Fallacies; Mill on inference and fallacies; Kant and informal logic; Informal logic in the twentieth century; Index of names.

’Collection of papers... concentrate almost exclusively on formal logic...... contain much that would in recent years be discussed under the heading of formal logic’ Bibliographie De la Philosophie

• Contents: Introduction; The logic of Greek sophistry; The roots of informal logic in Plato; Aristotle and informal logic; Forms of argumentation in medieval dialectic; The Port Royal Logic; The Logick of Isaac Watts; Whately and the study of fallacious reasoning; Jeremy Bentham’s Handbook of Political Fallacies; Mill on inference and fallacies; Kant and informal logic; Informal logic in the twentieth century; Index of names.