Identical
Identical
Identical (/aɪˈdɛntɪkəl/; from Latin identicus, from idem meaning 'the same') is a term used in various fields of study including genetics, mathematics, and philosophy. It generally refers to two or more things being exactly the same in all respects.
Genetics
In genetics, the term 'identical' is often used to describe twins who are genetically the same. These are also known as monozygotic twins, as they originate from a single fertilized egg that splits into two.
Mathematics
In mathematics, 'identical' is used to describe two mathematical expressions that are equal in value. For example, in the equation 2 + 2 = 4, the expressions '2 + 2' and '4' are identical.
Philosophy
In philosophy, the concept of 'identical' is explored in the identity theory of mind, which posits that mental states and brain states are identical.
Related Terms
- Equal: In mathematics, 'equal' is often used interchangeably with 'identical'. However, there are subtle differences between the two terms.
- Clone: In biology, a clone is an organism or cell that is genetically identical to the original.
- Tautology: In logic, a tautology is a statement that is always true, and thus identical to truth.
External links
- Medical encyclopedia article on Identical
- Wikipedia's article - Identical
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