Step
*
of Lemma
reduce-ifthenelse
∀[f,k,x,y,b:Top].  (reduce(f;k;if b then x else y fi ) ~ if b then reduce(f;k;x) else reduce(f;k;y) fi )
BY
{ (Auto THEN UnrollLoopsOnce) }
Latex:
Latex:
\mforall{}[f,k,x,y,b:Top].
    (reduce(f;k;if  b  then  x  else  y  fi  )  \msim{}  if  b  then  reduce(f;k;x)  else  reduce(f;k;y)  fi  )
By
Latex:
(Auto  THEN  UnrollLoopsOnce)
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