"Grice and Jackson defend the view that ‘If A, then 
C’ is true if and only if either A is
false or C is 
true. The   analysis, as I call it, is widely 
regarded as a failure. But Adam
Rieger has recently 
offered a set of assertability conditions for the 
indicative that suggest that there is hope for the 
analysis. The conditions can be derived from the   
analysis itself, the knowledge rule of assertion, and 
general conversational maxims; no appeal to 
“conventional implicature” is required. In this paper 
I show how Rieger’s conditions canbe used to address 
some of the key problem cases for the   analysis."