premise (n.)
- affirmation
- ancestor
- antecedent
- assertion
- assumption
- axiom
- basis
- breakthrough
- clue
- conjecture
- data
- datum
- documentation
- evidence
- exhibit
- exordium
- fact
- facts
- forerunner
- foreword
- foundation
- frontispiece
- ground
- grounds
- guesswork
- hypothesis
- indication
- inference
- innovation
- introduction
- leap
- lemma
- manifestation
- mark
- muniments
- overture
- posit
- position
- postulate
- postulation
- preamble
- precedent
- precursor
- predicate
- preface
- prefix
- preliminary
- prelude
- premises
- premiss
- presumption
- presupposition
- prolegomenon
- prolepsis
- prologue
- proof
- proposal
- proposition
- sign
- statement
- sumption
- supposal
- supposition
- surmise
- symptom
- theorem
- thesis
- token
- verse
- voluntary