This quote was added by
gedeon

The objects with which we usually operate in mathematics are called classes; they arise by abstraction from the intuitive notion of a collection of things. This intuitive image is unsatisfactory for mathematical operations because it gives rise to contradictions, so we must consider classes as defined by a determined system of axioms. We consider here the same system of axioms as in the book Universal Algebra, by P. M. Cohn.
2.5 out of 5
based on 14 ratings.

Name | WPM | Accuracy |
---|---|---|

eventlogging | 170.00 | 100% |

ned1230 | 125.17 | 95.7% |

overkillhsc | 112.29 | 98.8% |

ilovejujubee | 111.54 | 96.9% |

localbisexual | 110.01 | 95.1% |

arravalle | 105.90 | 99.3% |

jbailey5801 | 96.11 | 96.0% |

jan_londen | 95.01 | 97.5% |

davidf | 93.82 | 99.5% |

vmlm | 93.79 | 92.8% |

Name | WPM | Accuracy |
---|---|---|

charliegjune | 60.16 | 93.9% |

wen | 34.51 | 93.3% |

user529840 | 25.12 | 95.3% |

distillator | 52.65 | 88.8% |

faillogic | 59.53 | 95.1% |

cebpakkk1997 | 59.23 | 92.7% |

yahoo | 35.99 | 86.8% |

blizda | 50.73 | 83.0% |