classification logics modern developments area logic resulted great proliferation logical systems ref name haackdeviant ref stands stark contrast historical dominance aristotelian logic treated one canon logic two thousand years ref name jacquette treatises modern logic often treat different systems list separate topics without providing clear classification however one classification frequently mentioned academic literature due susan haack distinguishes classical logic extended logics deviant logics ref name haacklogics ref name haackdeviant ref name wolf classification
Humanities Philosophy Logic Philosophical logic