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Webster 1913 Edition


Postulate

Pos′tu-late

,
Noun.
[L.
postulatum
a demand, request, prop. p. p. of
postulare
to demand, prob. a dim. of
poscere
to demand, prob. for
porcscere
; akin to G.
forschen
to search, investigate, Skr.
prach
to ask, and L.
precari
to pray: cf. F.
postulat
. See
Pray
.]
1.
Something demanded or asserted; especially, a position or supposition assumed without proof, or one which is considered as self-evident; a truth to which assent may be demanded or challenged, without argument or evidence.
2.
(Geom.)
The enunciation of a self-evident problem, in distinction from an axiom, which is the enunciation of a self-evident theorem.
The distinction between a
postulate
and an axiom lies in this, – that the latter is admitted to be self-evident, while the former may be agreed upon between two reasoners, and admitted by both, but not as proposition which it would be impossible to deny.
Eng. Cyc.

Pos′tu-late

,
Adj.
Postulated.
[Obs.]
Hudibras.

Pos′tu-late

,
Verb.
T.
[
imp. & p. p.
Postulated
;
p. pr. & vb. n.
Postulating
.]
1.
To beg, or assume without proof;
as, to
postulate
conclusions
.
2.
To take without express consent; to assume.
The Byzantine emperors appear to have . . .
postulated
a sort of paramount supremacy over this nation.
W. Tooke.
3.
To invite earnestly; to solicit.
[Obs.]
Bp. Burnet.

Webster 1828 Edition


Postulate

POS'TULATE

,
Noun.
[L. postulatum, from postulo, to demand, from the root of posco, to ask or demand. The sense is to urge or push.]
A position or supposition assumed without proof, or one which is considered as self-evident, or too plain to require illustration.
A self-evident problem, answering to axiom, which is a self-evident theorem.

POS'TULATE

,
Verb.
T.
[supra.] To beg or assume without proof. [Little used.]
1.
To invite; to solicit; to require by entreaty.
2.
To assume; to take without positive consent.
The Byzantine emperors appear to have exercised, or at least to have postulated a sort of paramount supremacy over this nation.