In this book, originally published in 1911, Emily Elizabeth Constance Jones argues for the existence of another fundamental law of thought.

MISS JONES'S object in this [book] is to propound "a certain analysis of categorical propositions of the forms 'S is P, S is not P', to show that this is the only general analysis which it is possible to accept, and to indicate its bearing upon logical science." We need propositions of these forms for significant assertion, and without them no satisfactory statement can be given of the three fundamental laws of thought. The first two of these are commonly formulated as (1) 'A is A', (2) 'A is not non-A', and the third sometimes as 'A is either A or non-A'. Desperate efforts have been made by logicians to give a valuable meaning to 'A is A'; but if 'A is A', interpreted as 'A is A', is retained as the first fundamental law, there is no possible passage from it to 'A is B'. Lotze therefore gives up (theoretically) 'S is P'. 'A is A' tells us no more than 'A is A', and if we begin with it, we must also end with it, if we are to be consistent. We must, then, not begin with it, but with a law of significant assertion-assertion of the forms 'S is P', 'S is not P'. If we start with the principle that 'every subject of Predication is an identity (of denotation) in diversity (of intension)' this law and the laws of contradiction and excluded middle do furnish a real and adequate and obvious basis and starting point of "formal logic."Miss Jones illustrates and applies her contention in a concise but interesting way, and Prof. Stout thinks that she makes out her case. -' Nature', Volume 87

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Like their predecessors, and like their male counterparts, most women philosophers of the 20th century have significant expertise in several specialities. Moreover, their work represents the gamut of 20th century philosophy's interests in moral pragmatism, logical positivism, philosophy of mathematics, of psychology, and of mind. Their writings include feminist philosophy, classical moral theory reevaluated in light of Kant, Mill, and the 19th century feminist and abolitionist movements, and issues in logic and perception. Included in the fourth volume of the series are discussions of L. Susan Stebbing, Edith Stein, Hedwig Conrad Martius, Simone de Beauvoir, Simone Weil, Mary Whiton Calkins, Gerda Walther, and others. While pre-20th century women philosophers were usually self-educated, those of the 20th century had greater access to academic preparation in philosophy. Yet, for all the advances made by women philosophers over two and a half millennia, the philosophers discussed in this volume were sometimes excluded from full participation in academic life, and sometimes denied full professional academic status.

This book contains a selection of papers from the workshop Women in the History of Analytic Philosophy held in October 2019 in Tilburg, the Netherlands. It is the first volume devoted to the role of women in early analytic philosophy. It discusses the ideas of ten female philosophers and covers a period of over a hundred years, beginning with the contribution to the Significs Movement by Victoria, Lady Welby in the second half of the nineteenth century, and ending with Ruth Barcan Marcus’s celebrated version of quantified modal logic after the Second World War. The book makes clear that women contributed substantially to the development of analytic philosophy in all areas of philosophy, from logic, epistemology, and philosophy of science, to ethics, metaphysics, and philosophy of language. It illustrates that although women's voices were no different from men's as regards their scope and versatility, they had a much harder time being heard. The book is aimed at historians of philosophy and scholars in gender studies

The years covered by this volume of the Collected Papers of Bertrand Russell were among the most productive, philosophically speaking, of Russell's entire career. In addition to the papers reprinted here, he bought Principia Mathematica to its finished form and wrote The Problems of Philosophy, Theory of Knowledge and Knowledge of the External World. In October 1910 he began teaching at Cambridge, having accepted an appointment as lecturer in logic and the principles of mathematics at Trinity College for a term of five years. A year later Ludwig Wittgenstein began to attend his lectures. Within a few months he was influencing Russell's philosophical thinking as much as, or more than, Russell was influencing his.

Historical Dictionary of Ethics, Second Edition contains a chronology, an introduction, and an extensive bibliography. The dictionary section has more than 600 cross-referenced entries on the important terms, concepts, theories, and thinkers from all areas and eras of the history of ethics.

Originally published in 1916. This book reviews the common problems of philosophy and then critiques the varied epistemological theories of the time. A theory of knowledge may be either dualistic or monistic and realistic or idealistic. Examining the resulting doctrines at the beginning, this book then goes on to consider mysticism, psychology, logic, consciousness, intellectualism and then scientific method. A fascinating insight into early Twentieth century philosophy.