Quantity (Categorical Proposition)
In Categorical Logic, each of the standard form
propositions can
be identified by its quality and its quantity. The quantity of a categorical proposition is either universal or
particular.
For example, there are two affirmative and two negative propositions and each one will either be universal or particular:
- All S are P. - universal
- Some S are P. - particular
- No S are P. - universal
- Some S are not P. - particular
The quantity of each proposition is determined by whether it is referring to all of a class of things, or some
(i.e., at least one member) of a class.
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