Charlow on "the most popular way" to resolve Ross's paradox is NOT Grice's

"the most popular way of resolving the Ross Paradox (Post the letter! does not entail Post or burn the letter!) is to point out that the command Post or burn the letter! carries free-choice permissions (i.e., to burn the letter) that are not necessarily conveyed by the command to post the letter. Here we have a problem that looks structurally similar to the Ross Paradox (failure of imperative entailment in a case where the indicative complements of the imperative premises entail the indicative complement of the imperative conclusion..."