What 'Must' and 'Can' Must and Can Mean
Journal or Book Title
Linguistics and Philosophy
This is the original 1977 version of the article. A slightly revised version of the article appears as chapter 1 of my 2012 book Modals and Conditionals. There are only stylistic changes.
Kratzer, Angelika (1977). What 'Must" and 'Can' Must and Can Mean. Linguistics and Philosophy 1(3), 337-355.