jon williamson wpwkxphtsjdkentacuk progic07 third workshop combining probability logic held canterbury uk 57 september 2007 httpwwwkentacukseclphilosophyjw2007progic welcome submissions papers special focus workshop probabilistic logic probabilistic networks indeed aspect combining probability logic best jon jon williamson wpwkxphtsjdkentacuk httpwwwkentacukseclphilosophyjw philosophy secl university kent canterbury ct2 7nf uk thu 07 aug 2008 132449 0000 uai progic07 third workshop combining probability logic