Looking at the table for declension of "mein" on Wiktionary, it has separate tables for:
- attributiv (vor Substantiv)
- nicht attributiv, ohne Artikel
- nicht attributiv, mit Artikel
Could you give example sentences where the different uses would apply? I have also read https://en.wikipedia.org/wiki/German_declension#Attributive_adjectives which talks about strong, weak and mixed declension attributive adjectives, and https://en.wikipedia.org/wiki/German_adjectives which explains in general what an attributive adjective is, but I can't understand what a non-attributive use of "mein" would be, or why one would ever have an article.