CS188.1x
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constraints
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- unary constraint
- is a constraint on a single variable (e.g., X≠4).
- binary constraint
- is a constraint over a pair of variables (e.g., X≠Y).
- k-ary constraint has a scope of size k.
- variables
- domains
- the set of values a variable can take
arc constraints
- x-->y
For every x domain value in the tail is there a is there some y domain value that can meet the constraints. If not then remove those values from x.
