Capable of being allowed or accepted, especially in a court of law.
The judge ruled that the evidence was admissible in court.
Worthy of being admitted or allowed; acceptable.
The proposal was considered admissible by the committee.
In logic and mathematics, describing an inference rule that, while not axiomatic, does not increase the set of provable theorems because its conclusion is derivable whenever its premises are.
In sequent calculus, the cut rule is admissible and can therefore be eliminated without affecting provability.