I am a professor of philosophy at the University of Oslo and at Universidade Federal do Rio Grande do Norte in Brazil.
9 A question on an ordinal for ZFC- Jul 31 '13
6 How short can we state the Axiom of Choice? Aug 17 '14
5 Did Brouwer evade uncountability? Jan 11 '15
4 A question on the minimal ordinal for ZFC Aug 3 '13
4 Collection from Replacement in ZFC-extensionality Dec 20 '12