https://coq.inria.fr/refman/proofs/writing-proofs/proof-mode.html#coq:tacn.give_up interesting coq tactic
This is just an alias for `admit`, but that's way less fun than just going `give_up` in a proof you're finding too difficult
the tactic is called `admit' because you're admitting that you don't know how to complete the proof
a Schelling point for those who seek one