To assume as a truthful or accurate premise or axiom, especially as a basis of an argument
he attempt to arrive at a physical explanation of existence led the Ionian thinkers to postulate various primal elements or simply the infinite τὸ ἀπειρον.
An underlying assumption accepted as true, a priori, but acknowledged as indemonstrable because of the limitations of human knowledge or the human mind
1) A proposition concerning the relationship of variable that is indirectly tested by means of its theorems (implications); hence, a formalized type of hypothesis, usually occurring in a deductive theory 2) A working assumption
A proposition assumed to be true without any appeal to evidentiary support, especially when it is then used to derive further statements in a formal system or general theory
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