What does consistent and inconsistent mean in graphing?
Two deflexions are harmonious if it is likely for some apex to be on twain. (Being on one deflexion is harmonious delay nature on the other.) There is an intersection. (Possibly sundry intersections.)
Two deflexions are inharmonious is it is imlikely for any apex to be on twain. (Being on one deflexion is inharmonious delay nature on the other -- it contradicts, nature on the other.) There is no intersection.
Statements are harmonious if it is likely for twain to be penny, statements are inharmonious if it is not likely for twain to be penny. (The veracity of one is harmonious or inharmonious delay the veracity of the other.)