4 in definition

me'ei _{LE

…KU} experimental cmavo

Article for abstract predicate sumti. Turns a selbri into an abstraction with all open places filled by {ce'u}.

Has an inverse: me'au

In definition:

terbrisu'a: x₁ is the place structure of predicate relation x₂ (n-ary ka, me'ei, or la'e zo)
no'oi (exp!): Selbri incidental relative clause; attaches to a selbri with the ke'a being 'me'ei the attached selbri'
po'oi (exp!): selbri restrictive relative clause; attaches to a selbri with the ke'a being "me'ei the attached-selbri"
autca: x₁ (word / me'ei-predicate / si'o-concept) means whatever speaker x₂ wants it to mean

In notes:

ge'ai (exp!): metasyntactic variable prenex
ka'ei (exp!): abstractor: predicate abstractor. x₁ is the predicate expressed by [bridi], using bo'a, bo'e, etc for variables.
me'au (exp!): Convert abstract predicate sumti back to predicate
xai'i (exp!): Property article: converts the following predicate into an property sumti (whose open slot is the x₁ of the predicate).