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Step * of Lemma single-bags-equal

∀[T:Type]. ∀[x,y:T].  uiff({x} = {y} ∈ bag(T);x = y ∈ T)
BY
{ (Auto THEN (BLemma `bag-member-single`  THENM RevHypSubst (-1) 0) THEN Auto) }

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Latex:

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Latex:
\mforall{}[T:Type].  \mforall{}[x,y:T].    uiff(\{x\}  =  \{y\};x  =  y)


By

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Latex:
(Auto  THEN  (BLemma  `bag-member-single`    THENM  RevHypSubst  (-1)  0)  THEN  Auto)

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