@article{10_4064_fm_164_1_61_69, author = {Harvey M. Friedman}, title = {Borel and {Baire} reducibility}, journal = {Fundamenta Mathematicae}, pages = {61--69}, publisher = {mathdoc}, volume = {164}, number = {1}, year = {2000}, doi = {10.4064/fm-164-1-61-69}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-164-1-61-69/} }