Apodeictic
Apodeictic ({not transcribed}) , adjective
[Latin apodicticus, Greek {not transcribed}, from {not transcribed} to point out, to show by argument; {not transcribed} from + {not transcribed} to show.]
Self-evident; intuitively true; evident beyond contradiction. — Brougham. Sir Wm. Hamilton
Also: Apodictical, Apodeictical, Apodictic