# Helmut Veith (1971-2016)

My friend and colleague Helmut Veith died yesterday.  His death is a great and shocking loss to his family and friends, and the logic community, especially in Austria.

I’ve known Helmut since we were undergraduates in computer science at Vienna Technical University in the early 1990s.  We shared a passion for theoretical topics in computer science, a love of Robert Musil; we took many courses together.  In fact, we liked logic so much that together we created a specialized course of study (a studium irregulare) in computational logic.  At the time this still required approval by the federal ministry of science and research, and it was a lot of work, but we got it approved.  It has since morphed into a standard stream in the computer science curriculum at the TU Vienna, and more recently a doctoral program, all in no small part due to Helmut’s tireless organizational work.  I was a year ahead of him, but he was the better student.  He literally had straight As throughout high school and university. In Austria, that earns you a doctorate sub auspiciis praesidentis, and the president of the republic himself hands you your diploma.  His Diplom was on finite model theory; his dissertation on the complexity of database query languages (supervised by Georg Gottlob). Helmut had a stellar career: appointments at TU Munich, TU Darmstadt (two of the centers of computer science in Germany), and finally a full professorship at our alma mater in 2010; add to that an adjunct professorship at Carnegie Mellon. Not only was he the better student, he had the better sense to stay in computer science, and to do something useful with logic. He was one of the leading experts in computer aided verification, especially model checking, with over 120 papers to his name.  After his return to Vienna, he was instrumental in getting the Vienna Center for Logic and Algorithms off the ground, led the organization of the Vienna Summer of Logic, and helmed the Austrian doctoral program on logical methods in computer science.  Helmut wasn’t just an outstanding researcher, he was also passionate about improving undergraduate education in logic and computer science (he served on the ASL’s Logic Education committee, and we co-organized a special session at the 2014 Logic Colloquium), about diversity in the field, and about science policy.

We need more people like him. I miss him.

• TU Vienna obituary in German and English.
• A scholarship fund in Helmut’s honour is being set up.  Contributions to the Helmut Veith Award can be made to “Zentrum für Informatikforschung”, IBAN: AT36 1200 0515 8258 2701, BIC: BKAUATWW, reference: “Helmut Veith Award”

[Photo credit: Nadia Meister/VSL]

# An Actual Textbook, and: Photos!

(Cross-posted from the Open Logic Project)

Two exciting new things from the Open Logic Project. The first one is another sample textbook. I’ve previously written about how to get your textbook to print, and for my course “Logic II (Phil 379)” this term, I’ve done that. Properly: perfect bound paperbacks, with a nice cover, proper front and back matter, professional illustrations, and an (I think) appealing book design. The source for generating it is on GitHub (of course): github.com/rzach/phil379. If you want to compile it, just clone that repository into the courses/ subdirectory of your local OLP clone. It should compile out of the box.  There are three files you can compile: phil379-screen.tex makes a multi-color PDF suitable for on-screen reading; phil379-print.tex makes a black-and-white PDF suitable for printing via lulu.com.  The third is cover-lulu-quarto.tex, which generates the PDF lulu.com uses for the cover. You can see the product on the builds site:

The second exciting thing is that we’ve started to put photos of logicians into the text. Right now, they’re imported into the biographies. The photos themselves are not in the main repository, however. We have a separate repository for them: github.com/OpenLogicProject/photos. We’ve separated them because (a) the licensing issues are more complicated: some of the photos are under copyright, and we wanted everything in the main repository to be available under a Creative Commons license; (b) the main repository would become very large if it included all these pictures. To use the pictures, clone the photos repository into the assets/ subdirectory of your local OLP clone. (If the files aren’t there, the biographies including them will happily compile but leave out the photos.) There’s a PDF with all the photos also on the build site.

(PS: If you want to buy an actual copy of the Sets, Logic, Computation book, go here. It sells for CAD 9.42 (USD 8.36, EUR 8.55). But be warned; we’ve already corrected a bunch of typos and errors, so that version is not up-to-date.)