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Step * 1 2 of Lemma arcsine-rminus


1. [x] : {x:ℝ| x ∈ (r(-1), r1)} 
2. -(x) ∈ {x:ℝ| x ∈ (r(-1), r1)} 
⊢ rsin(-(arcsine(x))) = -(x)
BY
{ (RWW "rsin-rminus rsin-arcsine" 0 THEN Auto) }

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Latex:

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Latex:

1.  [x]  :  \{x:\mBbbR{}|  x  \mmember{}  (r(-1),  r1)\} 
2.  -(x)  \mmember{}  \{x:\mBbbR{}|  x  \mmember{}  (r(-1),  r1)\} 
\mvdash{}  rsin(-(arcsine(x)))  =  -(x)


By

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Latex:
(RWW  "rsin-rminus  rsin-arcsine"  0  THEN  Auto)

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