The sense of these propositions is very plain and easy, though logicians might perhaps squabble a whole day whether they should rank them under negative or affirmative.
1725, Isaac Watts, Logick: Or, The Right Use of Reason in the Enquiry after Truth, […], 2nd edition, London: […] John Clark and Richard Hett, […], Emanuel Matthews, […], and Richard Ford, […], published 1726