Grice’s theory of conversational implicature

Present Grice’s theory of conversational implicature. Explain the difference between conversational implicature and conventional implicature. Explain the difference between conversational implicature and presupposition. Apply Grice’s theory to the debate between “formalists” and “informalists” regarding natural-language conjunction and disjunction. Does Grice’s theory rescue the thesis that ‘and’ and ‘or’ are, respectively, synonymous with ‘&’ and ‘v’? Why or why not?