Deductions 1.2 is out. This version sees the addition of 45 new rules and aliases, to bring the total number of rules supported to 85 (!), with each rule being able to be turned on and off individually. Also, we have expanded the number of textbooks supported “out of the box” to ten:
(1) The Logic Book (Bergmann/Moor/Nelson, 2008)
(2) A Serious Introduction to Mathematical Logic (Roy, 2009) (Free online)
(3) A Modern Formal Logic Primer (Teller, 1989) (Free online)
(4) Logics by (Nolt, 1996)
(5) Symbolic Logic by (Jacquette, 2000)
(6) A Concise Introduction to Logic (Hurley, 2008)
(7) Introduction to Logic (Copi/Cohin, 2008)
(8) Logic and Philosophy (Hausman/Tidman/Kahane, 2009)
(9) The Power of Logic (Howard-Snyder/Snyder/Wasserman, 2008)
(10) Modern Logic (Forbes, 1994)
Fuzzy string-matching has also been implemented when citing rules, to make it easier to enter justifications. Documentation has been updated across-the-board to reflect these major changes.
This release is accompanied by an entirely reworked website with more obvious navigation buttons and a simpler presentation.
