Two cases may both exhibit one actual instance, yet differ radically.
Case 3: one exists and an additional instance is ruled out by another argument; the book uses “the Necessary Existent.”
Case 4: one exists and other instances remain conceivable; the book uses “the sun.”
The actual count is one in both, but their modal status differs. Therefore the observed number of instances cannot replace the criterion of universality itself.
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Concepts: Particular and Universal, and Six Cases of Universals
Two cases may both exhibit one actual instance, yet differ radically.
Case 3: one exists and an additional instance is ruled out by another argument; the book uses “the Necessary Existent.”
Case 4: one exists and other instances remain conceivable; the book uses “the sun.”
The actual count is one in both, but their modal status differs. Therefore the observed number of instances cannot replace the criterion of universality itself.