If at first we think of the x as fixed, in that formula, then each line of the formula affirms the nonemptiness or emptiness of a constituent function, or cell of the Venn diagram; and all these 2aquot; lines together then give the whole story regarding all 2aquot;anbsp;...

Title | : | Proceedings of the ... International Congress of Philosophy |

Author | : | |

Publisher | : | - 1969 |

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