検索キーワード： 論理学・言語学

フレーゲからラッセル、そしてウィトゲンシュタインへ――二十世紀初頭、言葉についての問いと答えが重なりあい、つながりあっていった。天才たちの挑戦は言語哲学の源流を形作っていく。

「新書大賞２０２４」第１位！ アジア・ブックアワード２０２４「最優秀図書賞」（一般書部門）受賞 25万部突破！　称賛の声、続々！

人間が言語に規定された存在であることは二〇世紀の哲学の前提だった。二一世紀に入って二〇年が過ぎたいま、コミュニケーションにおける言葉の価値は低下し、〈言語を使う存在〉という人間の定義も有効性

あなたは誰のメガネで世界を見ているのか　自分の頭で思考する限り、すべての人は「自分バイアス」を持っている。

ことばが世界をつくるのか。世界がことばをつくるのか。元オリンピアンで著作も多く、「走る哲学者」とも呼ばれる為末大氏。

今日から、「なぜ」と聞いてはいけません。代わりに、「いつ？」と聞いてください。40年超の対話のプロが熟練の経験を文字化した「解釈のズレを取り去る方法」＝事実質問術を紹介。

■思考や表現の幅を広げ、新しい扉を開く隠れた言葉たち「鴆酒（ちんしゅ）」「猫の魚辞退（うおじたい）」「アハ体験」「竹夫人（ちくふじん）」「ぐりはま」「ブーバ／キキ効果」……

Logic is often perceived as having little to do with the rest of philosophy, and even less to do with real life. In this lively and accessible introduction, Graham Priest shows how wrong this conception is. He explores the philosophical roots of the subject, explaining how modern formal logic deals with issues ranging from the existence of God and the reality of time to paradoxes of probability and decision theory. Along the way, the basics of formal logic are explained in simple, non-technical terms, showing that logic is a powerful and exciting part of modern philosophy.

The now-classic Metaphors We Live By changed our understanding of metaphor and its role in language and the mind. Metaphor, authors George Lakoff and Mark Johnson explain, is a fundamental mechanism of mind, one that allows us to use what we know about our physical and social experience to provide understanding of countless other subjects. Because such metaphors structure our most basic understandings of our experience, they are "metaphors we live by"—metaphors that can shape our perceptions and actions without our ever noticing them.

"Philosophy is not a theory," asserted Austro-British philosopher Ludwig Wittgenstein (1889-1951), "but an activity." In this 1921 opus, his only philosophical work published during his lifetime, Wittgenstein defined the object of philosophy as the logical clarification of thoughts and proposed the solution to most philosophic problems by means of a critical method of linguistic analysis.

“Mind-expanding . . . The Score is so exuberant and readable that the depth and seriousness of its insights almost sneak up on you.” —Jennifer Szalai, The New York Times “Brilliant and wildly original . . . The Score is socially attentive, historically literate and imbued with sensual...

Philosophical Investigations was published in 1953, two years after the death of its author. In the preface written in Cambridge in 1945 where he was professor of philosophy he states: ‘Four years ago I had occasion to re-read my first book (the Tractatus Logico-Philosophicus) and to explain its ideas to someone. It suddenly seemed to me that I should publish those old thoughts and the new ones together: that the latter could be seen in the right light only by contrast with and against the background of my old way of thinking.’

Thomas Gilovich offers a guide to the fallacy of the obvious in everyday life. Illustrating his points with examples, and supporting them with the latest research findings, he documents the cognitive, social, and motivational processes that distort our thoughts, beliefs, judgments and decisions.

This classic work of political theory and practice offers an account of the modern Machiavellians, a remarkable group who have been influential in Europe and practically unknown in the United States. The book devotes a long section to Machiavelli himself as well as to such modern Machiavellians as Gaetano Mosca, Georges Sorel, Robert Michels and Vilfredo Pareto. Burnham contends that the writings of these men hold the key both to the truth about politics and to the preservation of political liberty.

Your argument is valid and you know it; yet once again you find yourself leaving a debate feeling defeated and embarrassed. The matter is only made worse when you realize that your defeat came at the hands of someone's abuse of logic - and that with the right skills you could have won the argument. The ability to recognize logical fallacies when they occur is an essential life skill. Mastering Logical Fallacies is the clearest, boldest, and most systematic guide to dominating the rules and tactics of successful arguments.

This timely audio edition of A Rulebook for Arguments sharpens an already-classic text, adding updated examples and a new chapter on public debates that provides rules for the etiquette and ethics of sound public dialogue as well as clear and sound thinking in general.

In a letter of 1932, Karl Popper described Die beiden Grundprobleme der Erkenntnistheorie–The Two Fundamental Problems of the Theory of Knowledge–as ‘…a child of crises, above all of …the crisis of physics.' The two fundamental problems of knowledge that lie at the center of the book are the problem of induction, that although we are able to observe only a limited number of particular events, science nevertheless advances unrestricted universal statements; and the problem of demarcation, which asks for a separating line between empirical science and non-science.

Brought to you by Penguin. The celebrated scientist and author of Why Information Grows reveals how knowledge moves, drives progress and shapes the world We all understand that knowledge shapes the fate of business and the growth of nations, but few of us are aware of the principles that govern...

The Freakonomics of math—a math-world superstar unveils the hidden beauty and logic of the world and puts its power in our hands The math we learn in school can seem like a dull set of rules, laid down by the ancients and not to be questioned. In How Not to Be Wrong, Jordan Ellenberg shows us...

Why the familiar equal sign isn’t just a marker of sameness but a gateway into math’s—and humanity’s—most profound questions Math is famous for its equations: 1 + 1 = 2, a2 + b2 = c2, or y = mx + b. Much of the time it can seem like that’s all mathematics is: following steps to show...