Sunehag, PeterHutter, Marcus2015-12-10November 3http://hdl.handle.net/1885/38715We identify principles characterizing Solomonoff Induction by demands on an agent's external behaviour. Key concepts are rationality, computability, indifference and time consistency. Furthermore, we discuss extensions to the full AI case to derive AIXI.Copyright Information: © Springer-Verlag Berlin Heidelberg 2013. http://www.sherpa.ac.uk/romeo/issn/0302-9743/..."Author's post-print on any open access repository after 12 months after publication" from SHERPA/RoMEO site (as at 20/08/15)201110.1007/978-3-642-44958-1-302016-02-24