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theorem proved tactic proof

jBit_pos

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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

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