postulate

definition: maintain or assert
example:
speech part: verb
synonyms: contend
definition: require as useful, just, or proper
example:
speech part: verb
synonyms: need
definition: (logic) a proposition that is accepted as true in order to provide a basis for logical reasoning
example:
speech part: noun
synonyms: posit
definition: take as a given
example: assume as a postulate or axiom
speech part: verb
synonyms: posit

How postulate is being used?