Examlex
Marginal cost is:
Quantifier Negation
The logical operation of negating the quantifiers within a statement, which often changes the scope or meaning of the statement.
Existential Generalization
A logical inference rule stating that if an assertion is true for some member of a domain, then there exists an element in that domain for which the assertion holds.
Universal Generalization
A logical principle stating that what is true of all instances of a certain class can be said to be generally true of that class.
Existential Instantiation
A logical principle allowing for the inference of the existence of an instance of a predicate from a statement asserting the existence of some (possibly unspecified) instance.
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