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posits not merely that a case regulated by precedential or statutory law and an unregulated case should be treated alike since these cases sufficiently resemble each other, but that the unregulated case deserves to be treated in the same way as the regulated case in a higher degree. The unregulated
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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
264:. "Being dead" trumps other arguments that might be made to show that the person is dead, such as "he is no longer breathing"; therefore, "he is no longer breathing" is an extrapolation from his being dead and is a derivation of this strong argument.
369:
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
362:
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:
306:. Given some theorem with an additional restriction imposed upon this axiom, an "a fortiori" proof will always hold. To demonstrate this, consider the following case:
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as in "a usage to be resisted". He provides this example: "Clearly, if laws depend so heavily on public acquiescence, the case of conventions is an
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406:"who may more, all the more so may less" (qui potest plus, potest minus) and relates to the statutory provisions that permit to do something
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If a teacher refuses to add 5 points to a student's grade because the student does not deserve an additional 5 points, it can be inferred
333:
Because bijections are a special case of functions, it automatically follows that if (1) holds, then (2) will also hold. Therefore, any
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that he is exempted from the suspect list for a murder that took place on a later date, viz "Allen died on April 22nd, therefore,
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185:, literally "mild and severe", the mild case being the one we know about, while trying to infer about the more severe case.
409:"who is ordered more, all the more so, is ordered less" and relates to the statutory provisions that order to do something
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146:
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argument is sometimes considered in terms of analogical reasoning – especially in its legal applications. Reasoning
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case is here more similar (analogues) to the regulated case than this case is similar (analogues) to itself.
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From stronger to weaker ("If one may safely use a rope to tow a truck, one may also use it to tow a car.")
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If driving 10 mph over the speed limit is punishable by a fine of $ 50, it can be inferred
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If a person is dead (the stronger reason), then one can, with equal or greater certainty, argue
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Das argumentum a fortiori: eine Pilot-Studie anhand der Praxis von
Entscheidungsbegründungen
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that driving 20 mph over the speed limit is also punishable by a fine of at least $ 50.
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402:"Argumentum a maiori ad minus" (from the greater to the smaller) – works in two ways:
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From general to particular ("What holds for all X also holds for one particular X")
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of (1) also suffices as a proof of (2). Thus, (2) is an "a fortiori" argument.
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P(A). (Even if A were empty, the powerset would still contain the empty set.)
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that the teacher will also refuse to raise the student's grade by 10 points.
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If it is known that a person is dead on a certain date, it may be inferred
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605:(1st ed.). Cambridge: Cambridge University Press. p. 105.
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The reverse, less known and less frequently applicable argument is
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722:(1 ed.). Oxford: Oxford University Press. pp. 3–4.
688:(1 ed.). Oxford: Oxford University Press. pp. 2–3.
537:(3rd ed.). Oxford: Oxford University Press. p. 28.
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to argue in favor of a second proposition that is held to be
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469:. Oxford: Oxford University Press. pp. x–xii.
237:arguments are proved utilising the methods used in
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716:Fellmeth, Aaron Xavier; Horwitz, Maurice (2009).
682:Fellmeth, Aaron Xavier; Horwitz, Maurice (2009).
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201:), the instrument of argumentation known as
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131:in, and even more certain than, the first.
24:(literally "argument from the stronger ") (
603:Sharī'a: Theory, Practice, Transformations
298:Consider the case where there is a single
275:, Allen did not murder Joe on April 23rd."
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123:that draws upon existing confidence in a
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465:A Dictionary of Latin Words and Phrases
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497:The Cambridge Dictionary of Philosophy
560:"Torah Methodology #1 – Kal v'Chomer"
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209:is found to have a resemblance with
719:Guide to Latin in international law
685:Guide to Latin in international law
626:Grabenhorst, Thomas Kyrill (1990).
302:condition required to satisfy some
16:Argument from a yet stronger reason
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494:argument". In Audi, Robert (ed.).
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500:(Third ed.). New York City:
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221:meaning "what is to be said of".
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217:has been derived from the words
189:Relation to ancient Indian logic
177:arguments are regularly used in
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437:Principle of sufficient reason
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154:says writers sometimes use
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653:Kaplansky, Irving (1977).
502:Cambridge University Press
490:Purtill, Richard (2015). "
374:portion of the document.")
314:A, there does not exist a
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327:one-to-one correspondence
584:Sion, Avi (2013-11-24).
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300:necessary and sufficient
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461:Morwood, James (1998).
260:that the person is not
757:Latin logical phrases
601:Hallaq, Wael (2009).
325:There cannot exist a
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21:Argumentum a fortiori
432:Argumentation theory
195:ancient Indian logic
632:(in German). Lang.
329:between A and P(A).
318:mapping A onto its
558:Abramowitz, Jack.
729:978-0-19-536938-0
695:978-0-19-536938-0
668:978-0-8284-0298-9
639:978-3-631-43261-7
544:978-0-19-538275-4
511:978-1-139-05750-9
476:978-0-19-860109-8
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661:. p. 29.
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590:. Avi Sion.
213:argument. K
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701:21 October
448:References
419:a fortiori
415:a fortiori
287:a fortiori
280:a fortiori
273:a fortiori
269:a fortiori
258:a fortiori
235:a fortiori
211:a fortiori
179:Jewish law
175:A fortiori
164:a fortiori
156:a fortiori
762:Arguments
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370:petrol.")
262:breathing
203:kaimutika
160:adjective
442:Rhetoric
426:See also
320:powerset
316:function
310:For any
251:Examples
215:aimutika
129:implicit
569:20 July
245:analogy
219:kim uta
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398:In law
166:one."
158:as an
152:Garner
354:logic
341:Types
335:proof
304:axiom
240:qiyas
199:nyaya
135:Usage
737:2023
724:ISBN
703:2023
690:ISBN
663:ISBN
634:ISBN
607:ISBN
571:2016
539:ISBN
516:OCLC
506:ISBN
471:ISBN
413:An
352:In
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