: Teaches various methods including induction , direct proof , and proof by contradiction .
: Available at ThriftBooks for approximately $49.39 and at AbeBooks for $49.61 . Introduction to Mathematical Proofs: A Transiti...
: It details deductive systems and explores the properties of natural numbers, integers, rationals, and real numbers. : Teaches various methods including induction , direct
: Retail listings often range from $5.99 (for older rentals or digital versions) to $49.61 . : Teaches various methods including induction