DIVISION (I.) FORMATION OF IDEAS
Section IV. REASONING PROCESSES
Demonstration –N. proof; conclusiveness; apodixis, probation, comprobation. logic of facts (evidence); experimentum crucis (test); argument; irrefragability.
Confutation. –N. refutation; answer, complete answer; disproof, conviction, redargution, invalidation; exposure, exposition; clincher; retort; reductio ad absurdum; knockdown argument, tu quoque argument.
Thesaurus of Words and Phrases by Peter Mark Roget, M.D., F.R.S. Enlarged by John Lewis Roget, M.A., New Edition Revised and Enlarged by Samuel Romily Roget, M.A. Published by Grosset & Dunlap, the edition is copyright 1941, 1947.