theorem adoption_threshold {beta delta : ℝ} (_hbeta : 0 < beta) (hdelta : 0 < delta) : 1 < adoptionR0 beta delta ↔ delta < beta := by unfold adoptionR0 rw [one_lt_div hdelta]
thesis/CESProofs/Applications/AITransition.lean:108
Paper 6: Endogenous Decentralization and the AI Transition