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In metaphysics, identity (from Latin: identitas, "sameness") is the relation each thing bears only to itself. [1] [2] The notion of identity gives rise to many philosophical problems, including the identity of indiscernibles (if x and y share all their properties, are they one and the same thing?), and questions about change and personal identity over time (what has to be the case for a person ...
Identity (philosophy), the relation each thing bears only to itself; Law of identity, that each thing is identical with itself; Personal identity, the numerical identity of a person over time; Identity (social science), qualities etc that characterize a person or group; Political identity
Personal identity is the unique numerical identity of a person over time. [1] [2] Discussions regarding personal identity typically aim to determine the necessary and sufficient conditions under which a person at one time and a person at another time can be said to be the same person, persisting through time.
Defining personhood is a controversial topic in philosophy and law and is closely tied with legal and political concepts of citizenship, equality, and liberty. According to law, only a natural person or legal personality has rights, protections, privileges, responsibilities, and legal liability. Philosophy of self; Psychology of self
Objectivism, the philosophy founded by novelist Ayn Rand, is grounded in three axioms, one of which is the law of identity, "A is A." In the Objectivism of Ayn Rand, the law of identity is used with the concept existence to deduce that that which exists is something. [6] In Objectivist epistemology logic is based on the law of identity. [7]
Perry has made contributions to many areas of philosophy, including logic, philosophy of language, metaphysics, and philosophy of mind.. Perry's 1978 book A Dialogue on Personal Identity and Immortality deals with standard problems in the theory of personal identity in the form of a dialogue between a mortally wounded university professor, Gretchen Weirob, and her two friends, Sam Miller and ...
[1]: 617 It is a theoretical solution to the question of personal identity, being contrasted with "Empty individualism", the view that personal identities correspond to a fixed pattern that instantaneously disappears with the passage of time, and "Closed individualism", the common view that personal identities are particular to subjects and yet ...
It is also known as a 'criterion of identity' or 'indiscernibility principle'. The history of the consideration of such a principle begins with Aristotle . [ 2 ] It was much discussed by the medieval philosopher Duns Scotus (c. 1266–1308) with his " haecceity " and later, during Renaissance , by Francisco Suárez (1548–1617), Bonaventure ...