 It is also worth mentioning that Claudio de Almeida (on whom see  Section 2)  has devoted part of his work to the so-called Moore’s paradox, arguing that none of the most influential analyses of the paradox provides a successful solution to it, and proposing a solution of his own (de Almeida 2001, 2009). More recently, he has published on the defeasibility theory of knowledge, arguing that a fallibilistic version of this theory provides the correct solution to the Gettier problem (de Almeida &amp; Fett 2016, de Almeida 2017).