a priori principle
affirmation
ancestor
antecedent
apriorism
argue
assert
assertion
assume
assumed position
assumption
avant-propos
axiom
basis
basis for belief
body of evidence
breakthrough
categorical proposition
chain of evidence
clue
condition
conjecture
data
datum
documentation
evidence
exhibit
exordium
fact
facts
first principles
forerunner
foreword
foundation
front matter
frontispiece
ground
grounds
grounds for belief
guesswork
hypothecate
hypothesis
hypothesis ad hoc
hypothesize
indication
inference
innovation
introduce
introduction
item of evidence
exposit
expound
presuppose
set forth
suppose
premised
premises
premising
conclusion
analogy
apartment
argument
building
concept
dimension
edifice
implication
objection
proposition
residence
scenario
teaching
topic