Definition: describing gender entries/entry; the primary diversity of gender; pre-established gender base; the logic of pre-existing gender radix (roots, original category system).
Leptrois had been conceptualized as gender math, as arity is a mathematical concept we use leptary to describe specifically gender arity.
The most known leptarity is the gender binary (meaning two genders). Binarity is understood to embed male and female genders in the Western cultures.
In Bugis society there’s a gender quinary/quinternary (five genders): makkunrai, oroané, bissu, calabai, and calalai. In the Jewish culture there’s a gender senary (six genders): zachar, nekeivah, tumtum, androgynos, ay’lonit and saris.
These cultures weren’t perceived when someone firstly signified gender qua/ternary (trinary or quadnary/quadrinary; three or four genders). There are many different ways to set genders into a gender trinary.
Associating arities with leptivity (examples):
Non-arity: non-binary, non-trinary. A neutrois arity as it’s nongender.
An-arity: nullary, abinary, atrinary. Nulltrois (genderlessness).
A-non-arity: anonbinary. A nulltrois and neutrois arity.
Equarity (equary/equiry): equibinary. A neutrois arity.
Anti-arity: antibinary, negabinary, antigender. Negatrois (antigender).
Un-: ungender, unbinary. Negatrois and neutrois.
Apothigender: apothibinary. Negatrois and nulltrois.
Un-arity isn’t to be confused with unarity/gender unary (meaning one). Abinary for example is a binary nullity, often associated with being agender for the normative trinarism.
Nothing in gender isn’t necessarily precise and exact (hard sciences) as it’s humanities (human sciences), but here we can pinpoint things and some people find arity useful to describe their gender.
No one will stop people from using atrinary as an umbrella term for maveriques for example. You still can use non-ternary to encompass demineutrois and demiagender too.