[Pharo-users] partitions?

[stepharo]

Hi

I'm looking for a method that given
    #(1 2 3)
returns
    #(
        #(1)
        #(2)
        #(3)
        #(1 2)
        #(2 3)
        #(1 3)
        #( 1 2 3))

Stef