Trial and Error Predicates and the Solution to a Problem of Mostowski

Hilary Putnam. Trial and Error Predicates and the Solution to a Problem of Mostowski. Journal of Symbolic Logic, 30(1):49-57, 1965.

@article{Putnam65,
  title = {Trial and Error Predicates and the Solution to a Problem of Mostowski},
  author = {Hilary Putnam},
  year = {1965},
  researchr = {https://researchr.org/publication/Putnam65},
  cites = {0},
  citedby = {0},
  journal = {Journal of Symbolic Logic},
  volume = {30},
  number = {1},
  pages = {49-57},
}