Great series! Thanks so much for writing it! Noticed a few typos: "there exits"; "adding more states so to it"; "many possible future"; "talking about express

Great series! Thanks so much for writing it! Noticed a few typos: "there exits"; "adding more states so to it"; "many possible future"; "talking about expression". In note 14, the asterisks are being lost, with the text between them italicized. Note 15 is immediately followed by a comma splice; maybe you wanted "so" after the comma? Note 16 is also screwed up. (Calling it a night. Will continue at some point. Would love to chat further; email in profile.)