=====Background=====
The term "[[matheme]]" is a neologism coined by [[Jacques Lacan]] in the early 1970s.
Formed by derivation from "[[mathematics]]" and by analogy with [[phoneme]] and [[Lévi-Strauss]]'s [[mytheme]],<ref>''Mytheme'' is a term coined by [[Claude Lévi-Strauss]] to denote the basic constituents of mythological systems.</ref> the term is an equivalent to "[[algebra|mathematical sign]]". It is not used in conventional [[mathematics]], but is part of [[Lacan]]'s [[algebra]].
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