'Scuse me, but isn't this trivial ? Both pragmatic and epistemic instances depend on available information. If you drive to Carrefour, you need some information to tell you they're out of chocolate. And to see the 'Out of chocolate' sign, you need to have driven to Carrefour. So, dear friends, both instances depend on (a) purpose (b) information relative to the achievability of the purpose. Unless of course your purpose is 'enculage des mouches', in which case, don't go to Carrefour. Go to Tesco. PS Truth does not reduce to usefulness. Truth is a relative concept dependant on usefulness. I asked Schrodinger's cat to contribute but she was busy with her Whiskas.