[Lex Computer & Tech Group/LCTG] Mathematicians Have Found The Ninth Dedekind Number, After 32 Years of Searching

[Larry Wittig]

The Dedekind numbers are a rapidly growing sequence of integers named
after Richard Dedekind, who defined them in 1897. The Dedekind number
M(n) is the number of monotone boolean functions of n variables.
Equivalently, it is the number of antichains of subsets of an
n-element set, the number of elements in a free distributive lattice
with n generators, and one more than the number of abstract simplicial
complexes on a set with n elements.


On Sat, Nov 18, 2023 at 9:33 PM Peter Albin via LCTG <lctg at lists.toku.us> wrote:
>
>
> https://www.sciencealert.com/mathematicians-have-found-the-ninth-dedekind-number-after-32-years-of-searching
>
> Now, can someone explain what a Dedekind Number is in English? Is it worth a session?
>
> Peter
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