Author: rzach

New on Amazon: the print version of the Summer 2017 edition of forall x: Calgary Remix, as well as the […]

Back when I described the process to publish a text on lulu.com, commenter penrodyn suggested to try CreateSpace, Amazon’s self-publishing […]

The Open Logic Project will be part of the Thursday afternoon session “Inclusiveness in Logic Education” (session 7P) at the […]

We have new chapters on non-standard (and standard) models of arithmetic and on second-order logic.  First drafts, so please provide […]

Kevin Klement has done up a prototype of his online natural deduction proof builder/checker that works with the natural deduction […]

I’m teaching the incompleteness theorems (and related material) this term, and of course I’m using the Open Logic Project as […]

Aaron is teaching our intro logic course (“Logic I”) this term, and as part of a pilot project to redesign […]

Fresh from the Archives of American Mathematics at UT Austin, the photos repository now includes Henkin, Huntington, Rosser, and von […]

As per issues 107 and 109, the material in sets-relations-functions/sizes-of-sets needs to be cleaned up. It was inconsistent in its […]

Julia Bowman Robinson was an American mathematician. She is known mainly for her work on decision problems, and most famously […]