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In logic, ''a maiore ad minus'' describes a simple and obvious inference from a claim about a stronger entity, greater quantity, or general class to one about a weaker entity, smaller quantity, or specific member of that class: * From general to particular ("What holds for all X also holds for one particular X") * From greater to smaller ("If a door is big enough for a person two metres high, then a shorter person may also come through"; "If a canister may store ten litres of petrol, then it may also store three litres of petrol.") * From the whole to the part ("If the law permits a testator to revoke the entirety of a bequest by destroying or altering the document expressing it, then the law also permits a testator to revoke the portion of a bequest contained in a given portion of a document by destroying or altering that portion of the document.") * From stronger to weaker ("If one may safely use a rope to tow a truck (the American usage ), one may also use it to tow a car.") The reverse of this argument is ''a minore ad maius''. Both of these arguments fall within the class of ''a fortiori'' arguments. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「A maiore ad minus」の詳細全文を読む スポンサード リンク
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