The goal of this text is a focused introduction to the primary themes in a discrete mathematics course, as introduced through extensive applications, expansive discussion and detailed exercise sets. These themes include mathematical reasoning, combinatorial analysis, discrete structures, algorithmic thinking and enhanced problem-solving skills through modelling. Its intent is to show the relevance and practicality of discrete mathematics to all students. This edition includes a more thorough and linear presentation of logic, proof types and proof writing, and mathematical reasoning. This enhanced coverage will give students a solid understanding of the material as it relates to their immediate field of study and other relevant subjects. The inclusion of applications and examples to key topics has been significantly addressed to add clarity to every subject. The text-specific web site supplements the subject matter in meaningful ways, offering additional material for students and instructors. Discrete maths is an active subject with new discoveries made every year. The continual growth and updates to the web site reflect the active nature of the topics being discussed. - The introdu