On Sun, 14 Oct 2018, Sven Schreiber wrote:
Am 14.10.2018 um 11:34 schrieb Artur T.:
>
> Hi Jack, without having checked whether this is intended but the first
> entry in the PwrSet string array is empty.
Indeed I think conceptually the empty element must indeed be in the set of
all permutations. (Or at least there is such a convention.)
Exactly!
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Riccardo (Jack) Lucchetti
Dipartimento di Scienze Economiche e Sociali (DiSES)
Università Politecnica delle Marche
(formerly known as Università di Ancona)
r.lucchetti(a)univpm.it
http://www2.econ.univpm.it/servizi/hpp/lucchetti
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