*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.
Computation with Finitely Presented Groups/en-ca/computation-with-finitely-presented-groups/B2E5D139-BE26-4531-ABB8-6BA4FD5A4631.htmlB2E5D139-BE26-4531-ABB8-6BA4FD5A4631