C3O1N1T1R1A1P3O1S1I1T1I1V4E1
21 points
CONTRAPOSITIVE is validvalid
[n CONTRAPOSITIVES]
an immediate inference, which consists in denying the original subject of the contradictory of the original predicate [n -S]
[n CONTRAPOSITIVES]
an immediate inference, which consists in denying the original subject of the contradictory of the original predicate [n -S]