S: (v) prove, demonstrate, establish, show, shew (establish the validity of something, as by an example, explanation or experiment) "The experiment demonstrated the instability of the compound"; "The mathematician showed the validity of the conjecture"
W: (n) confirmation [Related to: confirm] (additional proof that something that was believed (some fact or hypothesis or theory) is correct) "fossils provided further confirmation of the evolutionary theory"
W: (n) substantiation [Related to: substantiate] (additional proof that something that was believed (some fact or hypothesis or theory) is correct) "fossils provided further confirmation of the evolutionary theory"
W: (n) support [Related to: support] (documentary validation) "his documentation of the results was excellent"; "the strongest support for this view is the work of Jones"
W: (adj) affirmable [Related to: affirm] (capable of being affirmed or asserted) "a quality affirmable of every member of the family"
W: (n) affirmation [Related to: affirm] (a judgment by a higher court that the judgment of a lower court was correct and should stand)