Introduction to Modal Logic
by Gary Hardegree
Publisher: UMass Amherst 2009
Number of pages: 275
Contents: Basic Concepts; Classical SL; Absolute Modal Logic - System L; Relative Modal Logic - System K; Systems Between K and L; Modal Predicate Logic; General First-Order Logic; First-Order Modal Logic; First-Order Modal Logic with Actuality; Two-Dimensional Modal Logic; Second-Order Modal Logic; Syntax of Modal Logic; Rules of Derivation; Categorial Grammar; Multi-Modal Systems.
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by Greg Restall - consequently.org
A textbook in philosophical logic, accessible to someone who's done only an intro course in logic, covering some model theory and proof theory of propositional logic, and predicate logic. User-friendly and philosophically motivated presentation.
by David Marans - HumBox Project
Century-by-Century: Insights, Images, and Bios. The continuity and expansion of a fundamental concept. We shall attempt to indicate the way in which logic has developed from the science of reflective thinking, or reasoning, to the science of form.
by Carveth Read - Project Gutenberg
Logic is the science that explains what conditions must be fulfilled in order that a proposition may be proved. When propositions are expressed with the universality and definiteness that belong to scientific statements, they are called laws.
by St. George Stock - Longmans
The author's object has been to produce a work which should be thoroughly representative of the present state of the logic of the Oxford Schools. The qualities which he aimed at before all others were clearness and consistency.