@article{aconceptuallywellfoundedcharacterization,
  title = {A Conceptually Well-Founded Characterization of Iterated Admissibility Using an "All I Know" Operator},
  author = {Joseph Y. Halpern and Rafael Pass},
  year = {2019},
  eprint = {1907.09106},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1907.09106v1},
}