Step
*
of Lemma
sqequal_zero
∀[x,y:Top].  (x ~0 y)
BY
{ (Auto THEN Refine_sqequalZero) }
Latex:
Latex:
\mforall{}[x,y:Top].    (x  \msim{}0  y)
By
Latex:
(Auto  THEN  Refine\_sqequalZero)
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