International Standard Name Identifier was published on 15 March 2012. The ISO technical committee 46, subcommittee 9 (TC 46/SC 9) is responsible for the development of the standard. 2013-09-01 "INTERNATIONAL STANDARD ISO 27729:2012 TECHNICAL CORRIGENDUM 1" was published. The FAQ of the isni.org websites states "An ISNI is made up of 16 digits, the last character being a check character." In display it is frequently shown with spaces. The ISNI allows a single identity (such as an author's pseudonym or the imprint used by a publisher) to be identified using a unique number. This unique number can then be linked to any of the
Opposite (semantics) the pattern of "non-person" could conceivably be extended to "non-platypus". Conversely, some words appear to be a prefixed form of an opposite, but the opposite term does not exist, such as "inept," which appears to be "in-" + *"ept;" such a word is known as an unpaired word￼￼. Opposites may be viewed as a special type of incompatibility. Words that are incompatible create the following type of entailment (where "X" is a given word and "Y" is a different word incompatible with word X): An example of an incompatible pair of words is "cat : dog": This incompatibility is also