Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

479} demonstration, proof, rigorous proof; conclusiveness &c adj.; apodeixis†, apodixis†, probation, comprobation†. logic of facts &c (evidence) 467; experimentum crucis &c (test) 463 [Lat.]; argument &c 476; rigorous establishment, absolute establishment. conviction, cogency, (persuasion) 484. V. demonstrate, prove, establish; make good; show, evince, manifest &c (be evidence of) 467; confirm, corroborate, substantiate, verify &c 467, settle the question, reduce to demonstration, set the question at rest. make out, make out a case; prove one's point, have the best of the argument; draw a conclusion &c (judge) 480. follow, follow of course, follow as a matter of course, follow necessarily; stand to reason; hold good, hold water. convince, persuade (belief) 484. Adj. demonstrating &c v., demonstrative, demonstrable; probative, unanswerable, conclusive; apodictic†, apodeictic†, apodeictical†; irresistible, irrefutable, irrefragable; necessary. categorical, decisive, crucial. demonstrated &c v.; proven; unconfuted†, unanswered, unrefuted†; evident &c 474. deducible, consequential, consectary†, inferential, following. [demonstrated to one's satisfaction] convincing, cogent, persuasive (believable) 484. Adv. of course, in consequence, consequently, as a matter of course; necessarily, of necessity. Phr. probatum est [Lat.]; there is nothing more to be said; quod est demonstrandum [Lat.], Q.E.D.; it must follow; exitus acta probat [Lat.].