obdd alternatives and similar packages
Based on the "Logic" category
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Do you think we are missing an alternative of obdd or a related project?
A pure Haskell implementation of Reduced Orderded Binary Decision Diagrams.
This is mostly educational. The BDDs do not share nodes and this might introduce inefficiencies.
An important (for me, in teaching) feature is that I can immediately draw the BDD to an X11 window (via graphviz). For example, to show the effect of different variable orderings, try this in ghci:
import qualified Prelude as P import OBDD let f  = false; f (x:y:zs) = x && y || f zs display P.$ f P.$ P.map variable [1,2,3,4,5,6] display P.$ f P.$ P.map variable [1,4,2,5,3,6]