The science that investigates the principles governing correct or reliable inference and deals with the canons and criteria of validity in thought and demonstration. This system of reasoning is applicable to any branch of knowledge or study. (Random House Unabridged Dictionary, 2d ed & Sippl, Computer Dictionary, 4th ed)
    

concept

An inexperienced student doctor taking the pulse of a patient in his bed. Coloured etching by A.M. Mills, 1806.

The two bookes of Sr Francis Bacon, of the proficience and advancement of learning, divine and humane.

Ars magna sciendi, in XII libros digesta, qua nova et universali methodo per artificiosum combinationum contextum de omni re proposita plurimis et prope infinitis rationibus disputari, omniumque summaria quedam cognitio comparari potest. Ad qugustissimum Rom. imperatorem Leopoldum primum, justum, pium, felicem / [Athanasius Kircher].

Guenon, Guillaume

Index des "Regulae ad directionem ingenii" de René Descartes / J.R. Armogathe, J.L. Marion ; avec des listes de leçons et conjectures établies par G. Crapulli.

Logic

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Catalogue

Guenon, Guillaume

Index des "Regulae ad directionem ingenii" de René Descartes / J.R. Armogathe, J.L. Marion ; avec des listes de leçons et conjectures établies par G. Crapulli.

Institutio logica [in quatuor partes distributa], et philosophiae Epicuri syntagma / Authore v. cl. Petro Gassendo.

Commentarius in Posteriorum analyticorum libros / Robertus Grosseteste ; introduzione e testo critico di Pietro Rossi.

Institutio logica [in quatuor partes distributa], et philosophiae Epicuri syntagma / Authore Petro Gassendo.