__NOTOC__ Robert Blanché (1898–1975) was an associate professor of

philosophy Philosophy ('love of wisdom' in Ancient Greek) is a systematic study of general and fundamental questions concerning topics like existence, reason, knowledge, Value (ethics and social sciences), value, mind, and language. It is a rational an ...

at the

University of Toulouse The University of Toulouse (, ) is a community of universities and establishments ( ComUE) based in Toulouse, France. Originally it was established in 1229, making it one of the earliest universities to emerge in Europe. Suppressed during the ...

. He wrote many books addressing the

philosophy of mathematics Philosophy of mathematics is the branch of philosophy that deals with the nature of mathematics and its relationship to other areas of philosophy, particularly epistemology and metaphysics. Central questions posed include whether or not mathem ...

About ''Structures intellectuelles''

Robert Blanché died in 1975. Nine years before, in 1966, he published with Vrin: ''Structures intellectuelles''. Therein, he deals with the

logical hexagon In philosophical logic, the logical hexagon (also called the hexagon of opposition) is a conceptual model of the relationships between the truth values of six statements. It is an extension of Aristotle's square of opposition. It was discovered i ...

. Whereas the logical square or square of Apuleius represents four values: A, E, I, O, the logical hexagon represents six, that is to say, not only A, E, I, O but also two new values: Y and U. It is advisable to read the article:

as well what concerns

Indian logic The development of Indian logic dates back to the Chandahsutra of Pingala and '' anviksiki'' of Medhatithi Gautama (c. 6th century BCE); the Sanskrit grammar rules of Pāṇini (c. 5th century BCE); the Vaisheshika school's analysis of atomism (c. ...

. In ''La Logique et son histoire d' Aristote à Russell'', published with Armand Colin in 1970, Robert Blanché, the author of Structures intellectuelles (Vrin, 1966) mentions that Józef Maria Bocheński speaks of a sort of Indian logical triangle to be compared with the square of Aristotle (or square of Apuleius), in other words with the square of opposition.

Works

*''La Notion de fait psychique, essai sur les rapports du physique et du mental'' – 1934, ed. PUF. *''Le Rationalisme de Whewell'' – 1935, ed. PUF. *''Whewell : de la construction de la science'' – 1938, ed. J. Vrin *''La Science physique et la réalité : réalisme, positivisme, mathématisme'' - 1948, ed. PUF *''Les Attitudes idéalistes'' – 1949, ed. PUF *''L’Axiomatique'' – 1955, ed. P.U.F. coll. Quadrige, 112p. *''Introduction à la logique contemporaine'' - 1957, ed. Armand Colin, coll Cursus, 205p. *''Structures intellectuelles, essai sur l’organisation systématique des concepts'' - 1966, ed. J. Vrin *''Raison et discours, défense de la logique réflexive'' – 1967, ed. J. Vrin *''La science actuelle et le rationalisme'' - 1967, Ed. PUF. *''La Méthode expérimentale et la philosophie de la physique'' – 1969, ed. Armand Collin, 384p *''La logique et son histoire d’Aristote à Russell'', ed. Amand Colin, coll. U, Paris, 1970, 366p. *''La Logique et son histoire'', (avec Jacques Dubucs), ed. Amand Colin, coll. U, Paris, 1996, 396p. (édition revue de 1970) *''L’Épistémologie'' - 1972; ed. PUF *''Le Raisonnement'' – 1973, ed. PUF *''L’Induction scientifique et les lois naturelles'' – 1975, ed. PUF

References

Biography on Larousse
{{DEFAULTSORT:Blanche, Robert 1898 births 1975 deaths Philosophers of mathematics Academic staff of the University of Toulouse French male non-fiction writers 20th-century French philosophers 20th-century French male writers