assertion
/ə-ˈsər-shən/
noun
the act of asserting or something that is asserted: such as
insistent and positive affirming, maintaining, or defending (as of a right or attribute)
a declaration that something is the case
an assertion of ownership/innocence
noun
the act of asserting oneself or one's own rights, claims, or opinions
the act of asserting one's superiority over others