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Step * of Lemma sub-bag-empty

∀[T:Type]. ∀[b:bag(T)].  uiff(sub-bag(T;b;{});b = {} ∈ bag(T))
BY
{ Auto }

1
1. T : Type
2. b : bag(T)
3. sub-bag(T;b;{})
⊢ b = {} ∈ bag(T)

2
1. [T] : Type
2. [b] : bag(T)
3. b = {} ∈ bag(T)
⊢ sub-bag(T;b;{})

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Latex:

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Latex:
\mforall{}[T:Type].  \mforall{}[b:bag(T)].    uiff(sub-bag(T;b;\{\});b  =  \{\})


By

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Latex:
Auto

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