Inadequacy or incompleteness.
An insufficiency, especially of something essential to health.
The codimension of a linear system in the corresponding complete linear system.
The amount by which the number of double points on a curve is short of the maximum for curves of the same degree.
The result or product of being sound.
The property (of an argument) of not only being valid, but also of having true premises.
The property of a logical theory that whenever a wff is a theorem then it must also be valid. Symbolically, letting T represent a theory within logic L, this can be represented as the property that whenever T⊢𝜙 is true, then T vDash 𝜙 must also be true, for any wff φ of logic L.
The state or quality of being sound.