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Step * of Lemma derivative-radd_rcos

d(radd_rcos(x))/dx = λx.r1 - rsin(x) on (-∞, ∞)
BY
{ ((Assert ⌜d(x + rcos(x))/dx = λx.r1 + -(rsin(x)) on (-∞, ∞)⌝⋅ THENA (ProveDerivative THEN Auto))
   THEN DerivativeFunctionality (-1)
   THEN Auto) }

1
1. d(x + rcos(x))/dx = λx.r1 + -(rsin(x)) on (-∞, ∞)
2. x : {x:ℝ| x ∈ (-∞, ∞)} 
⊢ (x + rcos(x)) = radd_rcos(x)

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Latex:

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Latex:
d(radd\_rcos(x))/dx  =  \mlambda{}x.r1  -  rsin(x)  on  (-\minfty{},  \minfty{})


By

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Latex:
((Assert  \mkleeneopen{}d(x  +  rcos(x))/dx  =  \mlambda{}x.r1  +  -(rsin(x))  on  (-\minfty{},  \minfty{})\mkleeneclose{}\mcdot{}  THENA  (ProveDerivative  THEN  Auto))
  THEN  DerivativeFunctionality  (-1)
  THEN  Auto)

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