Abstract
An analysis of effectiveness of some of hume's arguments in a framework developed by the author. The author states his position that arguments attacking positions attempt to show that, Given the assumptions of a position, Certain consequences are incompatible with it--A valid species of "argumentum ad hominem". Although this species does not work for constructive philosophical "proofs," it will work inversely in arguments (defending such proofs) which cite possible objections. These charge "petitio": the objection assumes what the position denies or "vice versa". Eight arguments are judged as "ad hominem" or as charging "petitio" and as effective or ineffective in either case. The analyses elaborate the author's position, And the mode of analysis is suggested as an adjunct to considering a philosopher's conclusions