2. Introduction. Objectives: To show variants of SAT and check if they are NP- hard Checking if a propositional calculus formula is satisfiable (SAT) is NP- hard.
1.10 Application: Solving the 2 - Satisfiability Problem. 35 travelling salesman problem is NP-hard. For a wealth of information on. NP-hard optimization problems.
2 - Satisfiability (2 - SAT) is the problem of determining whether a collection of boolean variables with constraints on pairs of variables can be.