-- -*- M2-comint -*- hash: 17543028184550619105

i1 : T = new MutableList from (a, b, c)

o1 = MutableList{...3...}

o1 : MutableList

i2 : isMutable T

o2 = true

i3 : V = new List from (a, b, c)

o3 = {a, b, c}

o3 : List

i4 : isMutable V

o4 = false

i5 : isMutable join(T, V)

o5 = true

i6 : isMutable a

o6 = true

i7 : isMutable "a"

o7 = false

i8 : 
