In symbolic logic, a valid inference in a system of truth-functional rules. In a derivation, two statements can be inferred using the conjunction symbol, since a statement governed by the…
In symbolic logic, a valid inference in a system of truth-functional rules. Because a statement governed by a conjunction is true if, and only if, each of the conjuncts is…
The ordinary language name for the Boolean connective that corresponds to, for example, “and,” “both…and,” and “but.” On a truth table, the conjunction of sentences is true if, and only…
In symbolic logic, a valid inference in a system of truth-functional rules. Conditional introduction is the method of proof whereby a conditional claim is proved by deriving a statement Q…
In symbolic logic, a valid inference in a system of truth-functional rules. The consequent of a conditional claim is inferred when the antecedent of that claim is affirmed. (See also…