Vector values again

Paul Thagard has done substantial work on coherence/consistency of thought (see his books Hot Thought, 2008 and Coherence in Thought and Action, 2000).While I do not agree with the exact algorithms he advocates (see Iris van Rooij's review "If Hot Coherence is Rational, then How?" for reasons) I do think it is significant that he employs a vector value/utility (having vector components representing 1. how much you like a given idea and 2. how much you believe this idea ).