equivalence |

The Theorem of equivalence |

On several pages of Ms. Gal. 72 Galileo explored a conjecture which is here called "Theorem of Equivalence." On one of these manuscript pages he formulated his conjecture as follows: |

Observe whether time and impetus along ab together with the parabola bd is really the same as the time and impetus along the inclined plane ad. (Ms. Gal. 72, folio page83v, see alsoRenn 1990) |

equivalence |