“Why are you crying, it’s just a photo.” The photo: Set Theory by Thomas Jech. Instant semester 2, year 2 flashbacks. Axioms, ordinals, cardinals, choice, independence proofs, and suddenly every definition matters and nothing is intuitive anymore. This is the point where maths stops holding your hand and starts asking for rigor. Painful. Beautiful. Character building. (Heavy on character building 🥹🥹) If you know, you know. If you don’t, this is where foundations get serious. ‼️‼️Full book link