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lemma proved term proof

acceptable_mono

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formal statement (Lean)

 182lemma acceptable_mono {L : List SpeciesEntry}
 183  {z₁ z₂ χ₁ χ₂ : ℝ}
 184  (hz : z₁ ≤ z₂) (hχ : χ₁ ≤ χ₂) :
 185  acceptable L z₁ χ₁ → acceptable L z₂ χ₂ := by

proof body

Term-mode proof.

 186  intro h
 187  rcases h with ⟨hzs, hchi⟩
 188  refine And.intro ?hzs' ?hchi'
 189  · intro e he; exact le_trans (hzs e he) hz
 190  · exact le_trans hchi hχ
 191
 192/-- Monotonicity of all-species acceptability in the thresholds. -/

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