theorem
proved
tactic proof
jBit_pos
show as:
view Lean formalization →
formal statement (Lean)
218theorem jBit_pos : 0 < jBit := Real.log_pos (by
proof body
Tactic-mode proof.
219 unfold phi
220 have : 1 < Real.sqrt 5 := by
221 rw [show (1 : ℝ) = Real.sqrt 1 from (Real.sqrt_one).symm]
222 exact Real.sqrt_lt_sqrt (by norm_num) (by norm_num)
223 linarith)
224
225end JCostGeometry
226end Foundation
227end IndisputableMonolith