Show how a single ternary constraint such as “A + B = C” can be turned into three binary constraints by using an auxiliary variable
Show how a single ternary constraint such as “A + B = C” can be turned into three binary constraints by using an auxiliary variable
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Show how a single ternary constraint such as “A + B = C” can be turned into three binary
constraints by using an auxiliary variable. You may assume finite domains. (Hint: Consider a new
variable that takes on values that are pairs of other values, and consider constraints such as “X is the
first element of the pair Y .”) Next, show how constraints with more than three variables can be
treated similarly. Finally, show how unary constraints can be eliminated by altering the domains of
variables. This completes the demonstration that any CSP can be transformed into a CSP with only
binary constraints.
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