@article{1183744681,
author = {Chuaqui, Rolando and Suppes, Patrick},
title = {Free-Variable Axiomatic Foundations of Infinitesimal Analysis: A Fragment with Finitary Consistency Proof},
journal = {J. Symbolic Logic},
volume = {60},
number = {1},
year = {1995},
pages = { 122-159},
language = {en},
url = {http://dml.mathdoc.fr/item/1183744681}
}
Chuaqui, Rolando; Suppes, Patrick. Free-Variable Axiomatic Foundations of Infinitesimal Analysis: A Fragment with Finitary Consistency Proof. J. Symbolic Logic, Tome 60 (1995) no. 1, pp. 122-159. http://gdmltest.u-ga.fr/item/1183744681/