Lojban

n. artificial language intended to be logical and is an offshoot of Loglan

Lojban (IPA ) is a constructed human language based on predicate logic.Development began in 1987 by The Logical Language Group (LLG), who intended to realize Loglan's purposes as well as further complement the language by making it more usable, and freely available (as indicated by its official full English name "Lojban: a realization of Loglan"). After a long initial period of debating and testing, the baseline was completed in 1998 with the publication of The Complete Lojban Language.
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Loglan