Section 3
Patentability of inventions
(2) The following shall not be regarded as inventions:
(c) schemes, rules and methods for performing mental acts, playing games or doing business, and programs for computers;
(3) The patentability of the subject-matter or activities referred to in the Subsection 2 is excluded only to that extent to which an application or a patent relates to such subject-matter or activities as such.