| lemma(theory, guesstimate, premise) |
| opinion(theory, guesstimate, premise) |
| postulate(theory, guesstimate, premise) |
| postulation(theory, guesstimate, premise) |
| precondition(theory, guesstimate, premise) |
| premise(theory, guesstimate) |
| prerequisite(theory, guesstimate, premise) |
| presumption(theory, guesstimate, premise) |
| presupposition(theory, guesstimate, premise) |
| principal element(expression, theory, guesstimate, premise) |
| principium(theory, guesstimate, premise) |
| principle(theory, guesstimate, premise) |
| qualification(theory, guesstimate, premise) |
| reality(noun, certainty, practicality) |
| reck(theory, guesstimate, premise) |
| rough guess(expression, theory, guesstimate, premise) |
| say so(expression, theory, guesstimate, premise) |
| self-evident truth(expression, theory, guesstimate, premise) |
| sine qua non(expression, idiom, theory, guesstimate, premise) |
| sneaking suspicion(expression, theory, guesstimate, premise) |