Sh:263
- Shelah, S. (1987). Semiproper forcing axiom implies Martin maximum but not PFA^+. J. Symbolic Logic, 52(2), 360–367. DOI: 10.2307/2274385 MR: 890443
represented in Ch. XVII of [Sh:f] - published version (9p)
Bib entry
@article{Sh:263, author = {Shelah, Saharon}, title = {{Semiproper forcing axiom implies Martin maximum but not PFA$^+$}}, journal = {J. Symbolic Logic}, fjournal = {The Journal of Symbolic Logic}, volume = {52}, number = {2}, year = {1987}, pages = {360--367}, issn = {0022-4812}, mrnumber = {890443}, mrclass = {03E35}, doi = {10.2307/2274385}, note = {represented in Ch. XVII of [Sh:f]}, refers_to_entry = {represented in Ch. XVII of [Sh:f]} }