Media Summary: ... statement like that and the rule to do it is called An example of a predicate logic proof that illustrates the use of This video introduces two rules of inference for predicate logic,
8 L05p6 Existential Instantiation - Detailed Analysis & Overview
... statement like that and the rule to do it is called An example of a predicate logic proof that illustrates the use of This video introduces two rules of inference for predicate logic, The only extra rule of equivalence in predicate logic. AKA "the magic hopping tilde"