soundness

The state of being sound, in any sense.

The quality or state of being sound

The state or quality of being sound.

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 is true, then must also be true, for any wff φ of logic L.

a state or condition free from damage or decay

the quality of being prudent and sensible

the muscle tone of healthy tissue