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A System of Logic, Vol. I

Note 2 — Chapter I · OF INFERENCE, OR REASONING, IN GENERAL.

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AllA is B}contraries.

NoA is B

SomeA is B}subcontraries.

SomeA is not B

AllA is B}contradictories.

SomeA is not B

NoA is B}also contradictories.

SomeA is B

AllA is B}andA is B}respectively subalternate.

SomeA is BSome A is not B

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