Hi Faldage

You said:

From a logical point of view what the barber does to men who do not shave themselves has no bearing on what he does to those who do shave themselves.

This is absolutely correct, and none of us pointed it out. Yet I remember quite clearly a genuinely logical paradox in the barber scenario, and realised that Emanuela statment of the problem left unstates something that we all considered implicit in the case:

The barber not only shaves all who don't shave themselves, but also only shaves those who do not shave themselves. It's the only that makes the difference because (apart from the 'riddle' answer of the barber being a woman, or someone not needing shaving) the barber is now constrained not to shave himself... and therefore to do so... and therefore to refrain... and so on

cheer

the sunshine warrior