Documentation

Lean 4 Proof

theorem perCapitaSurplusDeriv_pos {J ρ : ℝ} (hJ1 : 1 < J) (hJ2 : J < 2) (hρ : ρ < 1) :
    0 < perCapitaSurplusDeriv J ρ := by
  simp only [perCapitaSurplusDeriv]
  apply div_pos
  · exact mul_pos (by linarith) (by linarith)
  · exact pow_pos (by linarith) 3

Dependency Graph

Used by

Location

thesis/CESProofs/EntryExit/Calculus.lean:224

Module Section

Paper 1c: Formal Calculus on K(J) and V(J)

In the same file