nonidentityとは 意味・読み方・使い方

語源

non- +‎ identity

名詞

nonidentity (複数形 nonidentities)

1. Difference, distinction; failure to be identical.
   • 1993, Ordway Hilton, Scientific Examination of Questioned Documents^[1], ISBN 0849395100, page 395:

     No scientific examiner would select only chance variations to establish nonidentity of two specimens when the fundamental points of identification stamp them as originating at a single source.

2. (数学) An operator which modifies its operand, and which therefore is not the identity.
   • 1995, Thomas A. Whitelaw, Introduction to Abstract Algebra^[2], ISBN 0751401471, page 99:

     Moreover, in a group of prime order p, every non-identity element (i.e. every element other than 1) has period p.

派生語

• nonidentity problem