Posit

noun
(logic) a proposition that is accepted as true in order to provide a basis for logical reasoning
Similar: postulate
verb
take as a given; assume as a postulate or axiom
“He posited three basic laws of nature”
Similar: postulate
verb
put (something somewhere) firmly
“She posited her hand on his shoulder”
Similar: situate, fix, deposit
verb
put before
“I submit to you that the accused is guilty”
Similar: submit, state, put forward