na'itfa fu'ivla

x1 (du'u: proposition or kau-question) cannot be assigned a definite truth-value or answer

Brivla form of na'i. i.e. x1 is something one would answer na'i to. Useful sumtcita places include ni'i for the logical reasoning for x1 being na'itfa, and va'o for the conditions / contexts where x1 is na'itfa. See jo'atnu


In notes:

jo'atnu
x1 (du'u: proposition or kau-question) can be assigned a definite truth-value or answer