@article{cardinalityleapforopenendedevolution,
  title = {Cardinality Leap for Open-Ended Evolution: Theoretical Consideration and Demonstration by "Hash Chemistry"},
  author = {Hiroki Sayama},
  year = {2018},
  eprint = {1806.06628},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1806.06628v4},
}