ipse-dixitism

An ipse-dixitism or bare assertion is an unsupported or dogmatic assertion; it is a term sometimes used to point out a missing argument.

Someone guilty of perpetrating an ipse-dixitism does not explicitly define it as an axiom, and certainly not as a premise, but often appears presented in syllogistic form, as: "The economy needs more scientists, so expansion of science education will boost the future economy". The proposition rests on an ipse-dixitism unless the speaker gives reasons why "the economy needs more scientists".