Logic / Logic 129 · Atom · ~20 seconds
Scope and the Main Connective
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Parentheses fix scope; the main connective — the last one applied — determines what kind of statement the whole compound is.
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~(p · q) is a negation. ~p · q is a conjunction. Different statements, different tables.
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Identifying the main connective is the first move in every technique this unit teaches. Never skip it.