As a university student in Paris


With Newton C.A. da Costa and Arthur Buchsbaum
at the 2nd World Congress of Paraconsistency, Juquei, 2000


Close to Guaramiranga, Ceara, 2004


With Saul Kripke, Campinas, 2005


With Caroline Pires Ting, 4th World Congress on Logic and Religion, Sinaia, 2023


With Pierre Cartier, UNILOG, Vichy, 2018


Visiting Professor at LMU Munich, Germany, Winter 2012


With Alessio Moretti, Chateau de Veauce, 2006


Reading Lacan Le séminaire XX Encore ! Neuchâtel, Switzerland, 2005


With Alexandre Costa-Leite and Jaakko Hintikka, Paraty 2008


With Vladimir Vasyukov, 1998


World Congress of Philosophy, Istanbul, 2003


At school in Corsica, 1973


With Stan Surma and his son Charles in China, 2007


Looking for the philosopher's stone with Mathieu Marion in Montreal, Canada, 2010

   
With W.V.O.Quine in Boston, 1998           With Walter Carnielli in Pune, 2004


Developing Indo-Swiss cooperation with Raja Natarajan in Mumbai, India, 2008


Official visit in the Planalto of Brasilia, Capital of Brazil, 2011


With Chuan Zhao in the Panda Park, Chengdu, China, 2016


With my Sisters in the Forest of Orléans, 1967


With Humphrey Bogart, Key Largo, 2012


Discussing about fishes with A.M. Coelho, Florianópolis, Brazil, 2003


With Katarzyna Gan-Krzywoszynska and Piotr Lesniewski in Poznan, Poland, 2012


Sometimes, Somewhere





In Montevideo, Uruguay


With Kafka, in Vienna


With my family, in Corsica


As a painter


With my cat Miaou, February 2023