| 31. | Additionally, larger problems require more processing, as the operation of counting free variables in unsatisfied clauses dominates the run-time.
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| 32. | The problem is that the free variable " x " of " t " became bound during the substitution.
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| 33. | As you have observed, C is a free variable . talk ) 10 : 57, 17 January 2012 ( UTC)
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| 34. | Each tuple of the relation body provides attribute values to instantiate the predicate by substituting each of its free variables.
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| 35. | Let " V " denote the set of all free variables that may occur in the set of all terms.
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| 36. | There is a one-to-one correspondence between the free variables of the predicate and the attribute names of the relation heading.
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| 37. | We see that we can restrict ? to be a " sentence ", that is, a formula with no free variables.
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| 38. | There is no exact structural equivalent in lambda calculus for " let " expressions that have free variables that are used recursively.
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| 39. | So the " vertical bar " operator has a sort of non-associativity, which is obviously related to the concept of free variables.
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| 40. | Their basic premise is to choose a free variable assignment that will satisfy the most already unsatisfied clauses in the Boolean expression.
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