Talk:7-demicubic honeycomb

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 Field: Geometry

lattices[edit]

It would help to say what a lattice is, and how the odd members of the family fail to qualify. I'd also change "It" to something like "the analogous packings", assuming that the D7+ packing (the antecedent of 'it') does not become a lattice when embedded in 8space. —Tamfang (talk) 21:36, 29 July 2012 (UTC)

Agreed, wording and definitions need more clarity. Conway calls them packings. So all the uniform honeycombs (or extended symmetry unions) make equal-sphere packings, but lattices are the subset that can be expressed by simple translational symmetry of the lattice points. Tom Ruen (talk) 22:32, 29 July 2012 (UTC)