@article{Parker_Rettler_2017, title={A Possible-Worlds Solution to the Puzzle of Petitionary Prayer}, volume={9}, url={https://www.philosophy-of-religion.eu/index.php/ejpr/article/view/1856}, DOI={10.24204/ejpr.v9i1.1856}, abstractNote={If the thing he prays for doesn’t happen, then that is one more proof that petitionary prayers don’t work; if it does happen, he will, of course, be able to see some of the physical causes which led up to it, and `therefore it would have happened anyway’, and thus a granted prayer becomes just as good a proof as a denied one that prayers are ineffective. -- CS Lewis, The Screwtape Letters}, number={1}, journal={European Journal for Philosophy of Religion}, author={Parker, Ryan Matthew and Rettler, Bradley}, year={2017}, month={May}, pages={179–186} }