Is Postulation a Real Word?

Something taken to be true without proof: assumption, postulate, premise, presupposition, supposition, theory, thesis.

What postulation means?

verb (used with object), pos·tu·lat·ed, pos·tu·lat·ing. to ask, demand, or claim. to claim or assume the existence or truth of, especially as a basis for reasoning or arguing. to assume without proof, or as self-evident; take for granted.

How do you use the word postulation in a sentence?

Postulation sentence example

Both of them were intent on forcing the theologians into the daylight, and grudged them any aid they might expect from Kant's postulation of God and immortality to crown the edifice of ethics.