a priori principle, a priori truth, absolute fact, accepted fact, actual fact, admitted fact, advance, affirm, affirmation, apriorism, assert, assertion, assume, assumed position, assumption, avant-propos, aver, axiom, bald fact, bare fact, basis, breakthrough, bring before, bring forward, bring up, broach, brocard, brutal fact, call, categorical proposition, center, challenge, circumstance, claim, cold fact, commend to attention, conceded fact, conjecture, core, data, datum, demonstrable fact, dictate, dictum, elixir, empirical fact, essence, essential, established fact, exact, exordium, fact, fact of experience, first principles, flower, focus, foreword, formula, foundation, front matter, frontispiece, fundamental, gist, given fact, golden rule, gravamen, ground, guesswork, hard fact, heart, hypostasis, hypothesis, hypothesis ad hoc, indisputable fact, inescapable fact, inference, inner essence, innovation, introduce, introduction, kernel, launch, law, lay before, lay down, leap, lemma, major premise, make a motion, marrow, matter of fact, meat, minor premise, moot, move, naked fact, not guesswork, not opinion, nub, nucleus, nuts and bolts, offer a resolution, open up, overture, philosopheme, philosophical proposition, pith, plain, pose, posit, position, positive fact, postulation, postulatum, preamble, predicate, preface, prefer, prefix, prefixture, preliminary, prelude, premise, presume, presumption, presupposal, presupposition, principium, principle, proem, prolegomena, prolegomenon, prolepsis, prologue, propose, proposition, propositional function, propound, protasis, provable fact, put forth, put forward, put it to, quid, quiddity, quintessence, recommend, require, requisition, rule, salient fact, sap, self-evident fact, self-evident truth, set before, set forth, set of postulates, settled principle, significant fact, simple fact, sober fact, solicit, soul, spirit, start, statement, stubborn fact, stuff, submit, substance, suggest, sumption, supposal, supposing, supposition, surmise, the case, the nitty-gritty, theorem, thesis, truism, truth-function, truth-value, truth, truth table, undeniable fact, universal truth, verse, voluntary, well-known fact, working hypothesis