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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 ...
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]
Gottfried Leibniz's Principle of the identity of indiscernibles states that two things are identical if and only if they share the same and only the same properties. This is a principle which defines identity rather than difference, although it established the tradition in logic and analytical philosophy of conceiving of identity and difference as oppositional.
Both identity and indiscernibility are expressed by the word "same". [ 2 ] [ 3 ] Identity is about numerical sameness , and is expressed by the equality sign ("="). It is the relation each object bears only to itself. [ 4 ]
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.
Identity is the set of qualities, beliefs, personality traits, appearance, and/or expressions that characterize a person or a group. [1] [2] [3] [4]Identity emerges during childhood as children start to comprehend their self-concept, and it remains a consistent aspect throughout different stages of life.
In his philosophy, Hegel ventured to describe quite a few cases of "unity of opposites", including the concepts of Finite and Infinite, Force and Matter, Identity and Difference, Positive and Negative, Form and Content, Chance and Necessity, Cause and effect, Freedom and Necessity, Subjectivity and Objectivity, Means and Ends, Subject and ...
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 ...