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Sat Mar 24 17:16:31 CET 2012

Invertible nodes constraint solver: limitations?

So what are the limitations of an invertible node solver?  I'd say: no
dependency loops.  If there is a loop, more powerful "primitives" are
necessary.  Each loop needs a "global" solver.

Though, note that it's OK to have loops in the (undirected) network,
but not in the derived DAG.

So how would this be called?  An N-in, M-out function that's
multi-directional, i.e. any pair of in/out can be swapped.

In case information is lost in one direction this will be related to
bi-directional lenses[1].  See next post.  Looks like I need bijective
lenses.

[1] entry://20120325-111325



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