gunmace fu'ivla

x₁ is a mass/group consisting of elements x₂, x₃, x₄, etc.

See gunma, joi, porsice, setmice, menrece

jbovlaste

In notes:

menrece: x₁ is among x₂, x₃, x₄, etc.
porsice: x₁ is an ordered sequence consisting of elements x₂, x₃, x₄, etc.
setmice: x₁ is a set (mathematical) consisting of elements x₂, x₃, x₄, etc.