Page 12 - A Fortiori Logic: Innovations, History and Assessments
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6 AVI SION / A FORTIORI LOGIC



25.  Abraham, Gabbay and Schild .............................................................................................. 448 
1.  Their opinion of past work .................................................................................................. 448 
2.  Their erroneous basic premise ............................................................................................. 450 
3.  Some errors of logic ............................................................................................................ 452 
4.  Mixing apples and oranges .................................................................................................. 455 
5.  Quid pro quo ........................................................................................................................ 460 
26.  Stefan Goltzberg .................................................................................................................. 463 
1.  Source of his definition ....................................................................................................... 463 
2.  Soundness of the argument .................................................................................................. 465 
3.  The dayo principle ............................................................................................................... 467 
4.  His “two-dimensional” theory ............................................................................................. 469 
27.  Andrew Schumann .............................................................................................................. 471 
1.  Interpretation of Baba Qama 25a ........................................................................................ 471 
2.  Syllogism as a fortiori ......................................................................................................... 475 
3.  Grandiosity without substance ............................................................................................ 478 
4.  Logic custom-made ............................................................................................................. 481 
5.  Not logic, but lunacy ........................................................................................................... 484 
28.  Allen Wiseman .................................................................................................................... 492 
1.  Definition and Moods .......................................................................................................... 492 
2.  Inductive a fortiori ............................................................................................................... 498 
3.  Abduction and conduction ................................................................................................... 503 
4.  Proportional a fortiori .......................................................................................................... 505 
5.  The dayo principle ............................................................................................................... 509 
6.  The scope of dayo ................................................................................................................ 514 
7.  Miriam and Aaron ............................................................................................................... 520 
8.  Summing up ........................................................................................................................ 523 
29.  Yisrael Ury .......................................................................................................................... 528 
1.  An ingenious idea ................................................................................................................ 528 
2.  Diagrams for a fortiori argument ......................................................................................... 530 
3.  No a crescendo or dayo ....................................................................................................... 535 
4.  Kol zeh achnis ..................................................................................................................... 538 
30.  Hubert Marraud ................................................................................................................... 544 
1.  Warrants and premises ........................................................................................................ 544 
2.  The main form of a fortiori .................................................................................................. 546 
3.  So-called meta-arguments ................................................................................................... 550 
4.  Paulo minor argument ......................................................................................................... 553 
5.  Legal a fortiori argument ..................................................................................................... 555 
31.  Various other commentaries ................................................................................................ 560 
1.  H. S. Hirschfeld ................................................................................................................... 560 
2.  H.W.B. Joseph ..................................................................................................................... 561 
3.  Moshe Ostrovsky ................................................................................................................. 561 
4.  Pierre André Lalande ........................................................................................................... 564 
5.  David Daube ........................................................................................................................ 565 
6.  Meir Zvi Bergman ............................................................................................................... 567 
7.  Strack and Stemberger ......................................................................................................... 569 
8.  Meir Brachfeld .................................................................................................................... 569 
9.  Gary G. Porton .................................................................................................................... 570 
10.  Mordechai Torczyner ...................................................................................................... 573 
11.  Ron Villanova .................................................................................................................. 574 
12.  Giovanni Sartor ............................................................................................................... 575 
13.  And others still ................................................................................................................ 576 

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