 For an initial point, how do intentions change after the agent learns a new piece of information? According to Roy (2008: Chapter 5), if the original intentions are compatible with the new information, then they are ‘reshaped’; otherwise, the agent discards them without creating any new intention (or, analogously, generating an intention for something that has been already achieved). Thus, after an announcement of \(\chi\) the agent intends to do \(\varphi\) if and only if \(\chi\) is compatible with her intentions and \(\varphi\) is a restricted consequence of the agent’s initial intentions, or else \(\varphi\) is a ‘known’ consequence of \(\chi\)’s announcement. In a formula,