+Object identity is the fundamental principle that an entity is uniquely itself, separate from all other things, even if they share identical [Properties](/wiki/Properties). It addresses what makes something *this* specific instance, rather than merely one of a kind, a concept crucial in [Logic](/wiki/Logic) and computation.
+## See also
+- [Sameness](/wiki/Sameness)
+- [Equality](/wiki/Equality)
+- [Reference](/wiki/Reference)
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