> On Dec 3, 2017, at 16:41 , Steve Haflich <shafl...@gmail.com> wrote: > > Your problem description omitted one essential design requirement: > Are these triples mutable?
No. Each triple is, in essence, the full “object identity” (they are used in a memoization scheme). Cheers -- Marco Antoniotti, Associate Professor tel. +39 - 02 64 48 79 01 DISCo, Università Milano Bicocca U14 2043 http://bimib.disco.unimib.it Viale Sarca 336 I-20126 Milan (MI) ITALY Please check: http://cdac2018.lakecomoschool.org Please check: http://troncopackage.org Please note that I am not checking my Spam-box anymore. Please do not forward this email without asking me first (cum grano salis).