Page 11 - A Fortiori Logic: Innovations, History and Assessments
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AVI SION / A FORTIORI LOGIC 5



14.  Adolf Schwarz ..................................................................................................................... 336 
1.  Equation to syllogism .......................................................................................................... 336 
2.  Jacobs’ critique .................................................................................................................... 337 
3.  Kunst’s critique ................................................................................................................... 338 
4.  Wiseman on Schwarz .......................................................................................................... 339 
5.  Why a fortiori is not syllogism ............................................................................................ 340 
15.  Saul Lieberman .................................................................................................................... 341 
1.  Hermogenes ......................................................................................................................... 341 
2.  Influences on rabbis ............................................................................................................. 343 
3.  Reassessment ....................................................................................................................... 345 
4.  Cicero .................................................................................................................................. 346 
16.  Louis Jacobs ........................................................................................................................ 349 
1.  The simple and complex types ............................................................................................ 349 
2.  Deficiencies in Jacobs’ forms .............................................................................................. 353 
3.  More comments on Jacobs’ work ........................................................................................ 357 
4.  A more recent contribution .................................................................................................. 362 
17.  Heinrich Guggenheimer ...................................................................................................... 371 
1.  Tout un programme ............................................................................................................. 371 
2.  Theory of a fortiori .............................................................................................................. 372 
3.  A faulty approach ................................................................................................................ 374 
18.  Adin Steinsaltz .................................................................................................................... 376 
1.  Qal vachomer and dayo ....................................................................................................... 376 
2.  A recurrent fallacy ............................................................................................................... 380 
3.  Lack of formalism ............................................................................................................... 386 
19.  Jonathan Cohen ................................................................................................................... 387 
1.  Formula for a fortiori ........................................................................................................... 387 
2.  Fallacy of diverse weights ................................................................................................... 388 
3.  No effort of validation ......................................................................................................... 389 
20.  Michael Avraham ................................................................................................................ 390 
1.  Model of a fortiori ............................................................................................................... 390 
2.  Outlook on a fortiori ............................................................................................................ 391 
3.  On Baba Qama 2:5 .............................................................................................................. 393 
21.  Gabriel Abitbol .................................................................................................................... 396 
1.  Name and functioning ......................................................................................................... 396 
2.  Tabular representation ......................................................................................................... 398 
3.  Treatment of dayo ............................................................................................................... 402 
4.  Refutations ........................................................................................................................... 407 
5.  Closing remarks ................................................................................................................... 409 
22.  Hyam Maccoby ................................................................................................................... 411 
1.  Purely a fortiori argument ................................................................................................... 411 
2.  A crescendo argument ......................................................................................................... 413 
3.  Baba Qama 25a ................................................................................................................... 414 
4.  Faulty qal vachomer ............................................................................................................ 417 
23.  Alexander Samely ............................................................................................................... 420 
1.  General definition ................................................................................................................ 420 
2.  Descriptive formula ............................................................................................................. 422 
3.  Three alleged techniques ..................................................................................................... 425 
4.  Bava Kamma 25a-b ............................................................................................................. 427 
5.  Samely’s online database .................................................................................................... 429 
6.  My critical researches .......................................................................................................... 430 
24.  Lenartowicz and Koszteyn .................................................................................................. 442 
1.  The form of the argument .................................................................................................... 442 
2.  The dayo principle ............................................................................................................... 442 
3.  Epistemic substitution ......................................................................................................... 444 

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