The Leptral/Leptive Gender System (AKA Leptrois), is the most popular leptive system of classifying gender identities. It is primarily mathematic and linguistic in nature. While leptivity is the concept, leptrois is the implementation.
The Leptral Gender System is algebraic in nature, and applies algebraic concepts to linguistic terms, allowing users of the system to quickly and efficiently express their identity in an algebraic manner.
In my personal opinion, the Leptral Gender System is best when used as a personal exploration tool rather than a way to express your identity to others. This is primarily due to its lesser known nature.
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