Conlang Directory: Logical

Ceqli

Pronounced "Cheng-li" -- a logical language offshoot of Loglan; attempts to combine the logical structure of Loglan with more familiar borrowed vocabulary. There are several versions now, not all of which are Loglan derivatives.

Danovën

Logical language spoken by an alternate-history utopian subculture. Lots of detail and philosophy. [Joshua Shinavier]

-gua!spi

A descendent of Lojban and Loglan which uses Chinese-like tones to mark grammatical structure. There is a dictionary and other informational files in Jim Carter's -gua!spi directory. By using tones instead of structure words, and cutting predicates from two to one syllable, Carter has fixed a minor flaw in -gua!spi's predecessors -- they take a lot of syllables to say things. [Jim Carter]

Ithkuil

A cross between a philosophical and a logical language with its own script. The website presents a highly detailed, comprehensive grammar of the language. [John Quijada]

Loglan

Invented by James Cooke Brown. An attempt to fuse the rigor of formal logic with the expressiveness and flexibility of natural language. It's syntactically unambiguous and machine parseable. [James Cooke Brown]

Lojban

A descendent of Loglan. There was a schism relating to arguments about ownership and copyright.

Minyeva

According to the author: "Minyeva is a systematic constructed language designed to reflect the underlying semantics of sentences with more regularity than natural languages. [Garrett Jones aka Alkaline]

Plan B

A rigorous mathematical look at how to create words and morphology that are simple, efficient, and self-isolating. [Jeff Prothero][archivist: Rick Harrison]

Voksigid

Another offshoot of Loglan, this predicate-based language borrows its roots from European languages, and uses prepositions to make it clearer how the noun phrases relate to the predicate. [Bruce Gilson et. al.]