Mackie's analysis correctly identifies that a cause like 'striking a match' is insufficient alone but necessary within the sufficient condition of 'oxygen present AND match struck AND friction applied.'

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AND (logical operator)(connecting multiple necessary conditions in the statement): A symbol meaning all the conditions connected by it must be true at the same time for the statement to work.
Insufficient(describing why Harry alone can't be the complete truth-maker): Not enough by itself to accomplish something; here, Harry alone doesn't have enough 'oomph' to make the statement true without also considering his property of being golden.
Mackie: # Mackie J.L. Mackie was a 20th-century British philosopher best known for his work in ethics and the philosophy of religion. He argued that moral values don't actually exist objectively in the world, even though we talk and think about them as if they do—a view called "moral error theory." His ideas challenged traditional beliefs about right and wrong, influencing how philosophers today think about the foundations of morality.
Necessary(ontological distinction in Mulla Sadra's metaphysics): The principle, God; pure existence without essence, quality or property that undergoes change or motion

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