The permutation principle in quantificational logic

Kit Fine. The permutation principle in quantificational logic. J. Philosophical Logic, 12(1):33-37, 1983. [doi]

@article{Fine83,
  title = {The permutation principle in quantificational logic},
  author = {Kit Fine},
  year = {1983},
  doi = {10.1007/BF02329199},
  url = {http://dx.doi.org/10.1007/BF02329199},
  researchr = {https://researchr.org/publication/Fine83},
  cites = {0},
  citedby = {0},
  journal = {J. Philosophical Logic},
  volume = {12},
  number = {1},
  pages = {33-37},
}