(a.) Ratiocinative.

a fortiori a posteriori a priori acute algebraic analytical categorical classificatory conditional deductive deep dialectic discursive enthymematic enumerative epagogic examinational examinatorial examining explorational explorative exploratory fact-finding feeling geometric groping heuristic hypothetical indagative inductive inferential inspectional inspectorial investigational investigative investigatory keen maieutic mathematical numeric penetrating piercing profound ratiocinative ratiocinatory rational reasoning schematic segmental sharp soritical subtle syllogistic synthetic tentative testing trying zetetic