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theorem proved term proof

corePairStretchFactor_pos

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formal statement (Lean)

 155theorem corePairStretchFactor_pos {siteCount : ℕ} (op : CoreNSOperator siteCount)
 156    (i : Fin siteCount) : 0 < corePairStretchFactor op i := by

proof body

Term-mode proof.

 157  unfold corePairStretchFactor
 158  linarith [mul_nonneg op.dt_pos.le (op.gradientMag_nonneg i)]
 159
 160/-- The derived pair event at each site. -/

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