non·iden·ti·ty
| \ ˌnän-ī-ˈden-tə-tē
, -ə-, -ˈde-nə- \
, -ə-, -ˈde-nə- \
Definition of nonidentity
: the condition of not being the same one that is described or asserted : lack of identity
These cases may be illustrated by the complete identity of the morning star with the evening star, on the one hand, and the complete nonidentity of the morning star with the Red Planet [=Mars], on the other.— D. M. Armstrong
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“Nonidentity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nonidentity. Accessed 5 Jul. 2022.
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Time Traveler for nonidentity
The first known use of nonidentity was in 1808
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