(logic) The indirect verification or falsification of a statement by the verification or falsification of each of the finite number of cases which arise therefrom.

plural of proof by exhaustion

(rare, software engineering) proof of concept; pilot project

plural of burden of proof

Alternative spelling of leakproof

(US) Used other than figuratively or idiomatically: 55% alcohol by volume. / (idiomatic) Stronger than strong.

Intensely; strongly.

(law, of a defendant) Exempt from the payment of debts, either because of insufficient funds or because of protection by statute.

airtight

A fallacious judgment that, because a premise cannot be proven true, that premise must be false.