Whatever happened with this? The new release has been out for a while, and it would make sense to integrate your work now, well before any thought of a new release. Larry
> On 27 Aug 2017, at 15:59, Viorel Preoteasa <viorel.preote...@aalto.fi> wrote: > > I managed to integrate the new complete distributive lattice into HOL library. > > The changes are these: > > Complete_Lattice.thy > - replaced the complete_distrib_lattice with the new stronger version. > - moved some proofs about complete_distrib_lattice and some instantiations to > Hilbert_Choice > > Hilbert_Choice.thy > - added all results complete_distrib_lattice, including instantiations > of set, fun that uses uses Hilbert choice. > > Enum.thy > - new proofs that finite_3 and finite_4 are complete_distrib_lattice. > - I added here the classes finite_lattice and finite_distrib_lattice > and proved that they are complete. This simplified quite much the proofs > that finite_3 and finite_4 are complete_distrib_lattice. > > Predicate.thy > - new proof that predicates are complete_distrib_lattice. > > I compiled HOL in Isabelle2017-RC0 using > > isabelle build -v -c HOL > > and I got: > > Timing HOL (2 threads, 266.231s elapsed time, 487.094s cpu time, 43.344s GC > time, factor 1.83) > Finished HOL (0:04:26 elapsed time) > > Finished at Sun Aug 27 17:41:30 GMT+3 2017 > 0:04:37 elapsed time > > But I don't now how to go from here to have these changes into Isabelle. > > There is also AFP. If there are instantiations of complete_distrib_lattice, > then most probably they will fail. > > One simple solution in this case could be to keep also the > old complete_distrib_lattice as complete_pseudo_distrib_lattice. > > Viorel > > > On 8/26/2017 3:06 PM, Lawrence Paulson wrote: >>> On 25 Aug 2017, at 20:14, Viorel Preoteasa <viorel.preote...@aalto.fi >>> <mailto:viorel.preote...@aalto.fi>> wrote: >>> >>> One possible solution: >>> >>> Add the new class in Complete_Lattice.thy, replacing the existing class >>> >>> Prove the instantiations and the complete_linearord subclass later >>> in Hilbert_Choice. >>> >>> On the other hand, it seems inconvenient to have the Hilbert Choice >>> to depend on so many other theories. >> I’d prefer this provided the instantiations aren’t needed earlier. >> The delay in the introduction of the Axiom of Choice is partly historical, >> but it’s worth noting how much of HOL can be developed without it. >> Larry
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