... Beliefs and Intentions in a Changing World, in Precedings of the hal Spring Symposium Series: Rea- soning about Mental States: Formal Theories and Ap- plications. Asher, Nicholas and Morreau, ... European Summer School in Language, Logic and Information, Saarbriicken, Germany. Lascarides, Alex and Asher, Nicholas (1991) Dis- course Relations and Defeasible Knowledge, in Proceed- ings ... The attitudes we assume in our model are believes (BA¢ means &apos ;A believes ¢'), wants (WA¢ means &apos ;A wants ¢'), and intends (ZA¢ means &apos ;A intends ¢'). All of...