17818 | How many? must first partition an aggregate into sets, and then logic fixes its number |

17822 | Nothing is 'intrinsically' numbered |

17817 | Defining 'three' as the principle of collection or property of threes explains set theory definitions |

17815 | We can't use sets as foundations for mathematics if we must await results from the upper reaches |

17821 | You can ask all sorts of numerical questions about any one given set |