(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

Created or built in a steady, step-by-step fashion.

(idiomatic) to do something exactly, precisely, or in a formulaic way.

(informal, humorous, figuratively) A notional weapon used to knock sense into the clueless.

Alternative form of clue-by-four

Unexpectedly, accidentally; without foreplanning. / Possibly; perhaps.

plural of two-by-four

plural of clue-by-four

A small amount at a time