Claim: The Samkhya Pravachana Sutra is a collection of major 17th century Sanskrit texts that is consists of six chapters.
Evidence: The edition that survives in modern times is dated to the 14th century. 
The most important commentary on the text is Vijñānabhikṣu's Sāṁkhyapravacanabhāṣya (16th century). 
Other important commentaries on this text include Anirruddha's Kāpilasāṁkhyapravacanasūtravṛtti (15th century), Mahādeva's Sāṁkhyapravacanasūtravṛttisāra (c. 1600) and Nāgeśa's Laghusāṁkhyasūtravṛtti.