1: Introduction to Propositional Logic Last updated Mar 9, 2024 Save as PDF Licensing 1.1: Propositions Page ID100292 ( \newcommand{\kernel}{\mathrm{null}\,}\) 1.1: Propositions1.2: Predicates1.3: Proving an Implication1.4: Proving an “If and Only If”1.5: Proof by Cases1.6: Proof by Contradiction1.7: Propositions from Propositions1.8: Propositional Logic in Computer Programs1.9: Equivalence and Validity1.10: The Algebra of Propositions1.11: Predicate Formulas