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Step * 1 of Lemma rabs-difference-rcos-rleq


1. x : {x:ℝ| x ∈ (-∞, ∞)} 
⊢ |-(rsin(x))| ≤ r1
BY
{ (RWO "rabs-rminus" 0 THEN Auto) }

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Latex:

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Latex:

1.  x  :  \{x:\mBbbR{}|  x  \mmember{}  (-\minfty{},  \minfty{})\} 
\mvdash{}  |-(rsin(x))|  \mleq{}  r1


By

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Latex:
(RWO  "rabs-rminus"  0  THEN  Auto)

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