Which one of the following Provision of the Bharatiya Sakshya Adhiniyam, 2023 is not matched?

Under the Bharatiya Sakshya Adhiniyam, 2023, s.15 defines 'Admission' (formerly s.17 of the Indian Evidence Act), not 'relevant fact'; the general relevancy provisions are in ss.3-14, so pairing Section 15 with 'Relevant Fact' is the mismatched provision. 'May presume', 'shall presume' and 'conclusive proof' are now defined in s.2, s.3 provides that evidence may be given of facts in issue and relevant facts, and s.39 deals with opinions of experts.