it is possible to check if the elements of a spread are included or not into a second spread?
this is what I need (kind of): given A and B as spreads, I need to obtain the result of A∈B (spreads of boolean, same size as A)
(1,2,3) ∈ (4,5,6,7) = (0,0,0)
(6,4,9) ∈ (4,5,6,7) = (1,1,0)
(1,2,5) ∈ (4,5,6,7) = (0,0,1)
there is already something similar?