Lee, Soo-Jae. 2000. Assertion and presupposition in Focus constructions in Korean. Journal of the Linguistic Association of Korea, 8(3), 87-107. There have been various interesting opinions about assertion and presupposition employed in the previous or current literatures in order to solve the relation of meaning proper and extra meaning not captured in the sentence. In this paper I analyse focus constructions with Korean focus markers -ga, -nun, -man and -do, aiming to make explicit what is asserted and what is presupposed in expressing some proposition. Following Atlas` (1991) idea on the distinction between assertion and presupposition, I argue that the size of the domain set formed in discourse or conversation must be taken into consideration in order to account for the proper use of focal particles in Korean. (Kunsan College of Nursing).