vice diction, n.All

Vice-diction (n.) matters ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠more than contradiction: it follows multiplicities and engenders cases, where contradiction only guards the simplicity of essences.

Vice-diction (n.) is ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠Leibniz's way round contradiction: the inessential holds the essential in the case, while the essential holds the inessential in essence.