# Category: <span>Course Stuff</span>

### SAT Solving: DPLL, Clause Learning and Implication Graphs

This post is primarily directed at students in the AI class at University Erlangen to explain the Davis-Putnam (Logemann-Loveland) Algorithm for SAT solving and implication graphs for clause learning. The goal in a SAT problem is to find an assignment that satisfies a set of propositional formulae $$\Delta$$, or a proof that none exist,…

### Basics of Abstract Logic (Also: A Pointless but Fun, Correct and Complete Calculus for Divisibility)

This post is primarily directed at students in the AI class at University Erlangen to explain the basics, and in particular the formalism we use in the lectures, of abstract logic. In its (not actually, but for our purposes) most abstract form, a logical system consists of three things: A language $$\mathbb L$$, i.e. a…

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