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Step * of Lemma rcos-pi

rcos(π) = -(r1)
BY
{ ((InstLemma `rcos-shift-pi` [⌜r0⌝]⋅ THEN Auto) THEN (RWO "rcos0" (-1) THEN Auto) THEN nRNorm (-1) THEN Auto) }

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Latex:

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Latex:
rcos(\mpi{})  =  -(r1)


By

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Latex:
((InstLemma  `rcos-shift-pi`  [\mkleeneopen{}r0\mkleeneclose{}]\mcdot{}  THEN  Auto)
  THEN  (RWO  "rcos0"  (-1)  THEN  Auto)
  THEN  nRNorm  (-1)
  THEN  Auto)

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