Download Link: http://mostlyerlang.files.wordpress.com/2014/05/038_prolog.mp3

Any sufficiently complicated rules engine  contains an ad hoc, informally-specified, bug-ridden, slow implementation of half of prolog

We talk about prolog with Jan who created SWI Prolog and Robert Virding, who used Prolog to help create Erlang. About why prolog is interesting and how best to use it in general and with other systems.