Examlex
The optimal level of inventories is the level at which the extra cost (in lost sales) from lowering inventories by a small amount is greater than the gain (in interest revenue and decreased storage costs).
Universal Instantiation
A logical rule stating that if a property is true for all members of a domain, it is true for any specific member of that domain.
Universal Generalization
A logical inference rule stating that if something is true for all cases, then it is true in general.
Quantifier Negation
The logical operation of negating or reversing the scope of a quantifier in a statement, changing its encompassing range over the subjects it addresses.
Existential Generalization
A form of inference where from a specific case one concludes the existence of an instance satisfying a particular condition.
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