kut poi lujvo

x₁ is the empty array/sequence

See kunti, porsi, kutysetmima, kutlerpoi, kutyuenzi, kutydza, zai'o

jbovlaste

In notes:

kutlerpoi: x₁ is the empty character string
kutydza: x₁ is the null value/argument
kutygunma: x₁ is the empty mass/aggregate
kutysetmima: x₁ is the empty set
kutyuenzi: x₁ is the empty utterance/text