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Step * of Lemma arcsin_wf

∀[a:{a:ℝ| a ∈ [r(-1), r1]} ]. (arcsin(a) ∈ {x:ℝ| (x ∈ [-(π/2), π/2]) ∧ (rsin(x) = a)} )
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[a:\{a:\mBbbR{}|  a  \mmember{}  [r(-1),  r1]\}  ].  (arcsin(a)  \mmember{}  \{x:\mBbbR{}|  (x  \mmember{}  [-(\mpi{}/2),  \mpi{}/2])  \mwedge{}  (rsin(x)  =  a)\}  )


By

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Latex:
ProveWfLemma

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