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William of Sherwood or William Sherwood (), with numerous variant spellings, was a medieval English Scholastic philosopher, logician, and teacher. Little is known of his life, but he is thought to have studied in Paris, as a master at Oxford in 1252, treasurer of Lincoln from 1254/8 onwards, and a rector of Aylesbury. He was the author of two books which were an important influence on the development of Scholastic logic: ''Introductiones in Logicam'' (Introduction to Logic), and ''Syncategoremata''. These are the first known works to deal in a systematic way with what is now called supposition theory, known in William's time as the ''logica moderna''. ==Life== William was probably born in Nottinghamshire, between 1200 and 1210. In common with many educated English men of that time, he may have studied at Oxford university or the University of Paris, or both. There are examples in his logical work which suggest he was a master at Paris. (For example 'No man lectures at Paris unless he is a smart person' / 'Whatever runs has feet, the Seine runs, ergo the Seine has feet'). Further evidence that he lectured in Paris is that those logicians who were influenced by his work also worked there, including Peter of Spain () and Lambert of Auxerre (). He is thought to have become treasurer of Lincoln Cathedral some time in the 1250s. The treasurer was one of the four principal officers of the English cathedrals whose duty was to keep the treasures of the church, the gold and silver vessels, ornaments, relics, jewels, and altar cloths. He would have had a personal residence in the Cathedral close, would have employed a deputy and a large staff, and therefore could be absent as long as he performed those duties that could not be delegated (source: Edwards). He probably died there in or before 1272.〔 〕 He is mentioned by Roger Bacon, also a Master at Paris, as one of 'the more famous wise men of Christendom' one of whom is Albertus Magnus, another of whom is master William of Sherwood, 'the treasurer of the church of Lincoln in England, who is much wiser than Albert' (Brewer, transl. Kretzmann). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「William of Sherwood」の詳細全文を読む スポンサード リンク
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