Minimal Sequent Calculus for Teaching First-Order Logic: Lessons Learned

We present MiniCalc, a web app for teaching first-order logic, based on a so-called minimal sequent calculus. We explain the sequent calculus in Section 2. More than 100 computer science students have used versions of MiniCalc in a course on automated reasoning in the period 2021-2024. The web app MiniCalc 1.0 has not yet been announced, but it is available here: https://proof.compute.dtu.dk/MiniCalc.zip Installation is easy: Just unpack MiniCalc.zip in a new directory and open index.html in a browser. MiniCalc displays the proof editor to the left and the result about the default example proof to the right. We explain the default example proof in Section 3. The files in the above zip are from 12 February 2024 and we are not aware of bugs as of 1 December 2024.