On $\Pi^0_1$ classes and their ranked points.
Downey, Rod
Notre Dame J. Formal Logic, Tome 32 (1991) no. 2, p. 499-512 / Harvested from Project Euclid
Text on Project Euclid
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Publié le : 1991-09-14
Classification:  03D30,  03D25,  03D55 
@article{1093635924,
     author = {Downey, Rod},
     title = {On $\Pi^0\_1$ classes and their ranked points.},
     journal = {Notre Dame J. Formal Logic},
     volume = {32},
     number = {2},
     year = {1991},
     pages = { 499-512},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1093635924}
}

Downey, Rod. On $\Pi^0_1$ classes and their ranked points.. Notre Dame J. Formal Logic, Tome 32 (1991) no. 2, pp.  499-512. http://gdmltest.u-ga.fr/item/1093635924/