Two universal 3-quantifier representations of recursively enumerable sets
It is proved that all recursively enumerable sets of natural numbers can be represented by arithmetic formulas (of two kinds) with only 3 quantifiers.
math.LO↗
arXiv subjects
Publications and source records attributed to Julia Robinson.
It is proved that all recursively enumerable sets of natural numbers can be represented by arithmetic formulas (of two kinds) with only 3 quantifiers.