China is a special case in the history of logic, due to its relatively long isolation from the corresponding traditions that developed in Europe, India, and the Islamic world.
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Mozi (c. 470 – c. 391 BC), a near-contemporary of Confucius (c. 551 – c. 479 BC), is credited with founding the Mohist school, whose canons dealt with issues relating to valid inference and the conditions of correct conclusions. However, they were nonproductive and not integrated into Chinese science or mathematics. The Mohist school contained an approach to logic and argumentation that stresses rhetorical analogies over mathematical reasoning, and is based on the three fa , or methods of drawing distinctions between kinds of things. As classical Chinese philosophical logic was based on analogy rather than syllogism, fa were used as benchmarks to determine the validity of logical claims through comparison.
The School of Names, a school that grew out of Mohism, is credited by some scholars for their early investigation of formal logic.
Although Taoist skeptics such as Zhuang Zhou agreed with the Mohist perspective about object relations regarding similarities and differences, they did not consider language to be sufficiently precise to provide a constant guide of action. [1]
During the Qin dynasty, the rule of Legalism repressed the Mohist line of investigation, which has been said to have disappeared in China until the introduction of Indian philosophy and Indian logic by Buddhists. [2] A prominent scholar suggests that the version assembled for the Imperial Library of the Han dynasty would probably have been as disorganised as the current extant text, and thus would have only been 'intermittently intelligible', as it is for current readers who do not consult a critical edition. Disagreeing with Hajime Nakamura, A. C. Graham argues the school of Neo-Taoism maintained some interest in the Canons, although they may already have some of the terminology difficult to understand. [3] Before the end of the Sui dynasty, a shortened version of Mozi appeared, which appears to have replaced the Han edition. Although the original Mozi had been preserved in the Taoist,[ clarification needed ]and became known once more in the 1552 Lu edition and 1553 Tang edition, the damage was done: the dialectical chapters (as well as the military chapters) were considered incomprehensible. [4] Nevertheless, with the rise of Chinese critical textual scholarship, the book benefited from explanatory and critical commentaries: first, by Bi Yuan, and his assistant, Sun Xingyan; another commentary by Wang Chong, which has not survived; "the first special study", [5] by Zhang Huiyan; a republication of Part B by Wu Rulun. However, the summit of this late imperial scholarship, according to Graham, was the 'magnificent' commentary of Sun Yirang, which "threw open the sanctum of the Canons to all comers". [5] Graham summarises the arduous textual history of the Canons by arguing that the Canons were neglected throughout most of China's history; but he attributes this fact to "bibliographical" accidents, rather than political repression, like Nakamura. [6]
The study of logic in China was revived following the transmission of Buddhism in China, which introduced the Buddhist logical tradition that began in Indian logic. Buddhist logic has been often misunderstood by scholars of Chinese Buddhism because they lack the necessary background in Indian logic. [7]
In 1631, Li Zhizao and Francisco Furtado published an abridged translation of a commentary on Aristotle's logic published by the University of Coimbra.
In 1886, Joseph Edkins published the Chinese translation of William Stanley Jevons's Elementary Lessons in Logic. In 1905, Yan Fu published the translation of John Stuart Mill's A System of Logic . In the early 1930s, the Department of Philosophy of Tsinghua University was the center of philosophical study. Many of the scholars at Tsinghua University at the time were strongly influenced by Bertrand Russell, who visited China in 1920.
Outside of the PRC, Hao Wang, a mathematical logician who was a close friend of Kurt Gödel, and Mou Zongsan, one of the new-Confucian scholars and a translator of Ludwig Wittgenstein's Tractatus Logico-Philosophicus were active. Inside the country, dialectical logic was actively discussed during the Cultural Revolution, while formal logic stagnated. However, in 1979, after the Cultural Revolution, the Chinese Association of Logic was established with Jin Yuelin as the first chairman and studies of mathematical logic began.
Chinese philosophy originates in the Spring and Autumn period and Warring States period, during a period known as the "Hundred Schools of Thought", which was characterized by significant intellectual and cultural developments. Although much of Chinese philosophy begun in the Warring States period, elements of Chinese philosophy have existed for several thousand years. Some can be found in the I Ching, an ancient compendium of divination, which dates back to at least 672 BCE.
The Tao Te Ching or Laozi is a Chinese classic text and foundational work of Taoism traditionally credited to the sage Laozi, though the text's authorship and date of composition and compilation are debated. The oldest excavated portion dates to the late 4th century BC.
Mohism or Moism was an ancient Chinese philosophy of ethics and logic, rational thought, and scientific technology developed by the scholars who studied under the ancient Chinese philosopher Mozi, embodied in an eponymous book: the Mozi. Among its major ethical tenets were altruism and a universal, unbiased respect and concern for all people regardless of relations or affiliations. The ideology also stressed the virtues of austerity and utilitarianism.
Nyāya, literally meaning "justice", "rules", "method" or "judgment", is one of the six orthodox (Āstika) schools of Hindu philosophy. Nyāya's most significant contributions to Indian philosophy were systematic development of the theory of logic, methodology, and its treatises on epistemology.
Eastern philosophy includes the various philosophies that originated in East and South Asia, including Chinese philosophy, Japanese philosophy, Korean philosophy, and Vietnamese philosophy, which are dominant in East Asia; and Indian philosophy, which are dominant in South Asia, Southeast Asia, Tibet, Japan and Mongolia.
Mozi, personal name Mo Di, was a Chinese philosopher, logician, and founder of the Mohist school of thought, making him one of the most important figures of the Warring States period. Alongside Confucianism, Mohism became the most prominent, organized schools of the Hundred Schools of Thought throughout the period. The Mozi is an anthology of writings traditionally attributed to Mozi and to his followers.
The School of Names, or School of Forms and Names, is a school of thought in Chinese philosophy that grew out of Mohist logic. Sometimes termed Logicians or Sophists modernly, Han scholars used it in reference to figures earlier termed Disputers in the Zhuangzi, as a view seemingly dating back to the Warring States period. Rather than a unified movement like the Mohists, it represents a social category of early linguistic debaters. Some arguments in later Mohist texts would appear directed at their kind of debates. Figures associated with it include Deng Xi, Yin Wen, Hui Shi, and Gongsun Long. A Three Kingdoms era figure, Xu Gan, is relevant for discussions of names and realities, but was more Confucian and less relativist.
Gongsun Long, courtesy name Zibing, was a Chinese philosopher, writer, and member of the School of Names, also known as the Logicians, of ancient Chinese philosophy. Gongsun ran a school and received patronage from rulers, advocating peaceful means of resolving disputes amid the martial culture of the Warring States period. His collected works comprise the Gongsun Longzi (公孫龍子) anthology. Comparatively few details are known about his life, and much of his work has been lost—only six of the fourteen essays he originally authored are still extant.
Fajia, or the School of fa, often translated as Legalism, is a school of mainly Warring States period classical Chinese philosophy. Often interpreted in the West along realist lines, its members variously contributed to the formation of the bureaucratic Chinese empire, and early elements of Daoism. The later Han takes Guan Zhong as forefather of the Fajia. Its more Legalistic figures include ministers Li Kui and Shang Yang, and more Daoistic figures Shen Buhai and Shen Dao, with the late Han Feizi drawing on both. Later centuries took Xun Kuang as a teacher of Han Fei and Li Si. Succeeding emperors and reformers often followed the templates set by Han Fei, Shen Buhai and Shang Yang, but the Qin to Tang were more characterized by their traditions.
Shen Dao was an early to mid Warring states period Chinese philosopher and writer. Noteworthy as a predecessor to both Han Fei and Daoism, his remaining fragments are the most substantial of any Jixia Academy scholar, and may have been well known. Early remembered modernly for his influence on the Han Feizi with regards the concept of shi, most of his work would appear to have concerned the concept of fa commonly shared by others that the Han Confucian archivists classified as Legalist.
Xunzi, born Xun Kuang, was a Chinese philosopher of Confucianism during the late Warring States period. After his predecessors Confucius and Mencius, Xunzi is often ranked as the third great Confucian philosopher of antiquity. By his time, Confucianism had suffered considerable criticism from Taoist and Mohist thinkers, and Xunzi is traditionally regarded as a synthesizer of these traditions with earlier Confucian thought. The result was a thorough and cohesive revision of Confucianism, which was crucial to the philosophy's ability to flourish in the Han dynasty and throughout the later history of East Asia. His works were compiled in the eponymous Xunzi, and survive in excellent condition. Unlike other ancient compilations, his authorship of these texts is generally secure, though it is likely that Western Han dynasty historian Liu Xiang organized them into their present form centuries after Xunzi's death.
The Han Feizi is an ancient Chinese text attributed to the Legalist political philosopher Han Fei. It comprises a selection of essays in the Legalist tradition, elucidating theories of state power, and synthesizing the methodologies of his predecessors. Its 55 chapters, most of which date to the Warring States period mid-3rd century BCE, are the only such text to survive fully intact. The Han Feizi is believed to contain the first commentaries on the Dao De Jing. Traditionally associated with the Qin dynasty, succeeding emperors and reformers were still influenced by Shen Buhai and the Han Feizi, with Shang Yang's current again coming to prominence in the time of Emperor Wu.
Dignāga was an Indian Buddhist philosopher and logician. He is credited as one of the Buddhist founders of Indian logic and atomism. Dignāga's work laid the groundwork for the development of deductive logic in India and created the first system of Buddhist logic and epistemology (pramāṇa).
The Huainanzi is an ancient Chinese text made up of essays from scholarly debates held at the court of Liu An, Prince of Huainan, before 139 BCE. Compiled as a handbook for an enlightened sovereign and his court, the work attempts to define the conditions for a perfect socio-political order, derived mainly from a perfect ruler. Including Chinese folk theories of yin and yang and Wu Xing, the Huainanzi draws on Taoist, Legalist, Confucian, and Mohist concepts, but subverts the latter three in favor of a less active ruler, as prominent in the early Han dynasty before the Emperor Wu. The work is notable as a primary evidence of Zhuangzi influence in the Han.
The rectification of names is originally a doctrine of feudal Confucian designations and relationships, behaving accordingly to ensure social harmony. Without such accordance society would essentially crumble and "undertakings would not be completed." Mencius extended the doctrine to include questions of political legitimacy.
Deng Xi was a Chinese philosopher and rhetorician associated with the School of Names. Once a senior official of the Zheng state, and a contemporary of Confucius, he is regarded as China's earliest recorded lawyer, known for his clever use of words and language in lawsuits. The Zuo Zhuan and Annals of Lü Buwei critically credit Deng with the authorship of a penal code, the earliest known statute in Chinese criminology entitled the "Bamboo Law". This was developed to take the place of the harsh, more Confucian criminal code developed by the Zheng statesman Zichan.
State consequentialism is a modern minority theoretical interpretation of Mohist consequentialist ethics in Sinology, often intersecting with Chinese Legalism. Sinologist Fraser of the Stanford Encyclopedia of Philosophy interprets Mohist consequentialism, dating back to the 5th century BC, as the "world's earliest form of consequentialism, a remarkably sophisticated version based on a plurality of intrinsic goods taken as constitutive of human welfare". An ancient Chinese State consequentialist might evaluate the moral worth of an action based on how it contributes to the basic goods of a more particular entity: a state, with social order, basic material wealth, and population growth valued by both Mohists and "Legalists" like Shang Yang. The term has also been applied to the political philosophy of the Confucian philosopher Xunzi.
Fa is a concept in Chinese philosophy that concerns aspects of ethics, logic, and law. It can be accurately translated as 'law' in some contexts, but as a 'model' or 'standard' for behavior in most ancient texts, namely the Mozi, with prominent examples including the performance of carpentry. Although theoretically earlier, Fa comes to prominence in the Mohist school of thought. An administrative use of fa standards is prominently elaborated in Legalism, but figures in the school of names also used fa (models) for litigation. Given it's broadness, use of the term fa even included medical models (theories).
The Mozi, also called the Mojing or the Mohist canon, is an ancient Chinese text from the Warring States period (476–221 BC) that expounds the philosophy of Mohism. It propounds such Mohist ideals as impartiality, meritocratic governance, economic growth and aversion to ostentation, and is known for its plain and simple language.
Taoist philosophy also known as Taology refers to the various philosophical currents of Taoism, a tradition of Chinese origin which emphasizes living in harmony with the Dào. The Dào is a mysterious and deep principle that is the source, pattern and substance of the entire universe.