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Step * 1 of Lemma bag-no-repeats-settype


1. T : Type
2. bs : bag(T)
3. ∀x,y:T.  Dec(x = y ∈ T)
4. bag-no-repeats({x:T| x ↓∈ bs} ;bs)
⊢ bag-no-repeats(T;bs)
BY
{ (RepeatFor 3 (ParallelLast) THEN Auto) }

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Latex:

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Latex:

1.  T  :  Type
2.  bs  :  bag(T)
3.  \mforall{}x,y:T.    Dec(x  =  y)
4.  bag-no-repeats(\{x:T|  x  \mdownarrow{}\mmember{}  bs\}  ;bs)
\mvdash{}  bag-no-repeats(T;bs)


By

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Latex:
(RepeatFor  3  (ParallelLast)  THEN  Auto)

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