DISCRETE MATHEMATICS - PROOF TECHNIQUES AND MATHEMATICAL By Robert Clark Penner

Discrete Mathematics : Mathematical Reasoning and Proof with Puzzles, Patterns,

Discrete Mathematics: Mathematical Reasoning and Proof with Puzzles, Pattern...

Discrete Mathematics - Proof Techniques and Mathematical Structures

Discrete Mathematics : Mathematical Reasoning and Proof with Puzzles, Patterns,

Discrete Mathematics: Mathematical Reasoning and Proof with Puzzles,...

Discrete Mathematics: Elementary and Beyond (Undergraduate Texts in Mathemat...