下确界

infimum (math.) / greatest lower bound

(math.) infimum; greatest lower bound

down / downwards / below / lower / later / next (week etc) / second (of two parts) / to decline / to go down / to arrive at (a decision, conclusion etc) / measure word to show the frequency of an action

variant of 確|确[que4] / variant of 埆[que4]

authenticated / solid / firm / real / true

(bound form) boundary; border / (bound form) realm