Status as a trustworthy source of information, reputation for mastery or expertise; or claim to such status or reputation.
A reliable, definitive source of information on a subject.
Persons, regarded collectively, who occupy official positions of power; police or law enforcement.
Official permission; authorisation to act in some capacity on behalf of a ruling entity.
A government-owned agency that runs a revenue-generating activity for public benefit.
Power or right to make or enforce rules or give orders; or a position having such power or right.
The property (of an argument) of not only being valid, but also of having true premises.
The result or product of being sound.
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.