theorem budget_monotone {B₁ B₂ p : ℝ} (hp : 0 < p) (hB : B₁ < B₂) : purchaseValue B₁ p < purchaseValue B₂ p := by unfold purchaseValue; exact div_lt_div_of_pos_right hB hp
thesis/CESProofs/Applications/KnowledgeCommons.lean:342
Paper 10: The Knowledge Commons Paradox: