*Valid September 30, 2024 - December 25, 2024 at Canadian stores and at indigo.ca, while quantities last, with $50.00 or more pre-tax purchase of eligible product(s), after discounts and plum points redemptions. Minimum purchase amount excludes gift cards, plum+ memberships, Love of Reading products/donations, and shipping costs. Selection may vary between stores and online.
Mathematical Rigour and Informal Proof/en-ca/mathematical-rigour-and-informal-proof/F0247A2F-9CC9-4F0A-9A5E-770361B3AB7E.htmlF0247A2F-9CC9-4F0A-9A5E-770361B3AB7E