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Apr 18, 2017 at 5:36 comment added Dominic van der Zypen Great and natural argument!
Apr 16, 2017 at 18:24 comment added Joel David Hamkins Very nice. This argument shows that every collection of size $2^{2^{\aleph_0}}$ has a subcollection of that size consisting of pairwise non-isomorphic hypergraphs.
Apr 16, 2017 at 18:07 history answered Gro-Tsen CC BY-SA 3.0