On the strength of several versions of Dirichlet's ("Pigeon-Hole"-) principle in the sense of first-order logic.
Twer, T.v.d.
Archiv für mathematische Logik und Grundlagenforschung, Tome 21 (1981), p. 69-76 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1981-01-01
EUDML-ID : urn:eudml:doc:137976 
@article{GDZPPN002045257,
     title = {On the strength of several versions of Dirichlet's ("Pigeon-Hole"-) principle in the sense of first-order logic.},
     journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung},
     volume = {21},
     year = {1981},
     pages = {69-76},
     zbl = {0467.03060},
     url = {http://dml.mathdoc.fr/item/GDZPPN002045257}
}

Twer, T.v.d. On the strength of several versions of Dirichlet's ("Pigeon-Hole"-) principle in the sense of first-order logic.. Archiv für mathematische Logik und Grundlagenforschung, Tome 21 (1981) pp. 69-76. http://gdmltest.u-ga.fr/item/GDZPPN002045257/