If we only know the quantifier used in a categorical proposition, that is enough information to determine:

Question

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If we know the quantifier used in a categorical proposition (e.g. "all," "some," "no"), we can always determine its quantity (i.e. how much of the subject class is being referenced). However, we cannot determine its quality (i.e. whether the subject and predicate classes are being affirmed or denied) based solely on the quantifier. For example, "All cats are mammals" (affirmative) and "No cats are fish" (negative) both use the "all" quantifier, but have different qualities.

If We Only Know the Quantifier Used in a Categorical