@article{SPHM_1989___3_A1_0,
     author = {Stahl, G\'erold},
     title = {Existence et non-existence en logique math\'ematique},
     journal = {S\'eminaire de Philosophie et Math\'ematiques},
     pages = {1--24},
     publisher = {IREM Paris-Nord},
     number = {3},
     year = {1989},
     language = {fr},
     url = {http://archive.numdam.org/item/SPHM_1989___3_A1_0/}
}