For M 10/22, please read the following two items, which may both be downloaded from the “Readings” section of this website.
1. Huang, Yan. 2007. Pragmatics, Chap. 3 (‘Presupposition’), pgs. 64-75.
2. Karttunen, Lauri. 1973. Presuppositions of compound sentences. Linguistic Inquiry 4: 169-193.
(Note: You should skip sections 8,10,11 of the Karttunen paper.)