The phrase "as a postulate" is correct and usable in written English.
It can be used when referring to a statement or assumption that is taken to be true for the purposes of argument or investigation.
Example: "In this study, we will consider the theory as a postulate to explore its implications in real-world scenarios."
Alternatives: "as an assumption" or "as a premise".
The women spend one year as a postulate, followed by two years as a novice, when they take a religious name and are first clothed in the habit.
That is going to be taken as a postulate, and people are willing to take that as a reasonable postulate, and we want to see what we can get out of that postulate.
Dominant theorisations of investment decision making remain firmly wedded to the notion of economic rationality, either as a postulate of how financial actors actually behave or as a normative ideal to which financial actors should strive.
A method to derive the stiffness of self-similar elastic fractals is presented based on structural mechanics principles and a physically motivated similarity criterion, which is assumed as a postulate.
It can be assumed as a postulate that for analogous deposits, located in the Melekess Depression, the effect of these properties on the development process will be identical.
In 1864 Jevons listed this as a postulate (1890, p. 11) and then in §24 he referred to $A = A$ as a "useless Identical proposition".
Sister Mary Ann, a Franciscan who lived there as a first-year postulate and spent her career moving around New York, remembered the routine.
One might as well postulate that a knife or a saw divides things into knives or saws.
As a second postulate, he required that the laws of physics have the same form for all observers.
He thus clearly held a cognitivist metaethical position, probably even a naturalistic one, using his utilitarian principle as a meaning postulate for ought sentences.
The coterie of nuns is a splendid ensemble, but one standout is Samantha Joy Blair as a young postulate who's still unsure of her pending decision and raises her voice in fervent query.
