poptono fu'ivla

x₁ (entity) is the value of what is popped off top of stack / LIFO queue x₂ (ordered group of entity)

x₂ is the state of the stack before the push operation described by the current clause. See also pusxunu, piksini, stakeda.

jbovlaste

In notes:

piksini: x₁ (entity) is the value of what is peeked at top of stack / LIFO queue x₂ (ordered group of entity); x₁ (entity) is the last (topmost) element of stack x₂
pusxunu: x₁ (entity) is pushed on top of stack / LIFO queue x₂ (ordered group of entity)
stakeda: x₁ (ordered group of entity; full set) is a stack / LIFO queue