On a synonymy relation for extensional 1st order theories. Part III. A necessary and sufficient condition for synonymy
Rendiconti del Seminario Matematico della Università di Padova, Volume 71 (1984), p. 1-13
@article{RSMUP_1984__71__1_0,
author = {Bonotto, C. and Bressan, Aldo},
title = {On a synonymy relation for extensional 1st order theories. Part III. A necessary and sufficient condition for synonymy},
journal = {Rendiconti del Seminario Matematico della Universit\a di Padova},
publisher = {Seminario Matematico of the University of Padua},
volume = {71},
year = {1984},
pages = {1-13},
zbl = {0553.03019},
mrnumber = {769426},
language = {en},
url = {http://www.numdam.org/item/RSMUP_1984__71__1_0}
}

Bonotto, C.; Bressan, A. On a synonymy relation for extensional 1st order theories. Part III. A necessary and sufficient condition for synonymy. Rendiconti del Seminario Matematico della Università di Padova, Volume 71 (1984) pp. 1-13. http://www.numdam.org/item/RSMUP_1984__71__1_0/`

[1] C. Bonotto - A. Bressan, On a synonymy relation for extensional 1st order theories, Part I: A notion of synonymy, Rend. Sem. Mat. Univ. Padova, 69 (1982), pp. 63-76. | Numdam | MR 716986 | Zbl 0525.03019

[2] C. Bonotto - A. Bressan, On a synonymy relation for extensional 1st order theories, Part II: A sufficient criterion for non-synonymy. Applications, Rend. Sem. Mat. Univ. Padova, 70 (1983), pp. 13-19. | Numdam | MR 742106 | Zbl 0538.03025

[3] A. Bressan, On general operators binding variables in an extensional first order theory, Atti Istituto Veneto di Scienze Lettere ed Arti. Tomo CXL (1982), pp. 115-130. | MR 915662 | Zbl 0576.03002

[4] E. Mendelson, Introduction to mathematical logic, Van Nostrand - Rein-hold Co., New York, 1964. | MR 164867 | Zbl 0192.01901