SASyLF 1.2.6 & SASyLF 1.3.1 released

[John]

Two new versions of SASyLF have been released on the SourceForge download site:
       https://sourceforge.net/projects/sasylf/files/Releases/

1.2.6: bug fixes on the "stable" 1.2.X branch, and a few features

1.3.1: All 1.2.6 + new features beyond 1.3.0.
   - abstract modules
     i.e. define a semi-group over an unknown data type and unknown associate  operator

   - "or" clauses:
      e.g.
          exists n1 > n2 or n1 = n2 or n2 > n1 .

   - "use induction on x, y, z"
     Lexicographic induction variables

   - partial case analysis -- handle special cases out of line

The last two new features are featured in a new example: cut-elimination.slf in the examples folder.

In the coming week, the Wiki documentation will be updated with the new features.

Please post any bugs found on GoogleCode: http://code.google.com/p/sasylf/issues/list

Thanks to my ETH Zurich students who have helped by finding bugs for me to fix.

Best regards,
John