أولية، أو مشهورة، أو مقبولة، أو مسلمة
Resembling a first principle, a commonly held belief, an accepted report, or a conceded premise.
The book shows how an unsound claim can imitate distinct kinds of credibility. First principles are immediately intelligible to reason; common opinions enjoy broad or disciplinary acceptance; accepted reports rely on trusted authority; conceded premises are granted in a debate.
An imitation lacks the relevant warrant and merely gives its appearance. The proper test therefore differs according to the claimed basis of credibility.