More precisely, is there a “natural” statement (a statement that isn’t deliberately constructed to be an example) that can be stated in PA, proved in ZFC, but not provable in PA?
More precisely, is there a “natural” statement (a statement that isn’t deliberately constructed to be an example) that can be stated in PA, proved in ZFC, but not provable in PA?
Well, Con(PA) is a “natural” statement I’d say, and ZFC proves Con(PA).